BOROO - CMOP
D – INFORMATION ONLY
®
Authorization to proceed does not relieve Contractor/Supplier of its responsibility
or liability under the Contract.
Reviewed by: J. Nieto
PROTECTION COORDINATION TECHNICAL REPORT
Lagunas Norte Carbonaceous Material Optimization
Project (LNCMOP)
Detailed Engineering
Submitted to:
MINERA BOROO MISQUICHILCA S.A.
Av. Manuel Olguin Nº 325, Piso 12
Surco - Lima, Perú
Submitted by:
Golder Associates Perú S.A.
Av. La Paz 1049 - Piso 7, Miraflores, Lima,
Perú
+51 1 610 1700
Project: 21466447
Code Nº: 21466447-D-0000-EL-MEM-00001
March 2023
Rev.
Date
Submitted for
Prepared by
Reviewed by
Approved by
A
01/04/2023
Issued for internal review
EA
CVCH/MLL/GO/IA
DAB
B
01/16/2023
Issued for review and comments
EA
CVCH/MLL/GO/IA
DAB
0
01/30/2023
Issued for construction
EA
CVCH/MLL/GO/IA
DAB
1
03/22/2023
Issued for construction
EA
CVCH/MLL/GO/IA
DAB
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY
21466447-D-0000-EL-MEM-00003-1
22/03/2023
Bogotá D.C.
Proyecto – 1985
REVIEWS AND APPROVALS
Name
Luis Alejandro Olarte A.
Signature
Review
Name
Marlon A. Panadero
Signature
Review
Name
Jhonattan Rincón
Signature
Review
Name
Marco Ortiz
Signature
Approval
Name
Enrique Ayobi
Signature
Date
22/03/2023
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ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
Document 21466447-D-0000-EL-MEM-00003-1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
21466447-D-0000-EL-MEM-00003-1
CONTENT
Pg.
1.
2.
3.
INTRODUCTION .........................................................................................................10
1.1
OBJECTIVE .........................................................................................................10
1.2
SCOPE .................................................................................................................10
1.3
STANDARDS AND REGULATIONS ....................................................................10
DESCRIPTION OF SYSTEM AND ELECTRICAL MODEL .........................................11
2.1
PROJECT LOCATION AND CLIMATE CONDITIONS ........................................11
2.2
SYSTEM DESCRIPTION .....................................................................................11
2.3
DEMAND SCENARIO FOR THE LNCMOP PROJECT .......................................12
2.4
ELECTRICAL MODEL .........................................................................................13
2.4.1
ELECTRICAL GRID EQUIVALENT ..............................................................13
2.4.2
SUBSTATION AREAS ..................................................................................13
2.4.3
LINES AND CONDUCTORS ........................................................................14
2.4.4
LOADS AND MOTORS .................................................................................15
PROTECTION COORDINATION METHODOLOGY ...................................................17
3.1
GENERAL OBJECTIVES .....................................................................................17
3.2
GENERAL CRITERIA ..........................................................................................17
3.2.1
AREA 1 .........................................................................................................17
3.2.2
AREA 2 .........................................................................................................22
3.2.3
AREA 3 .........................................................................................................24
3.2.4
AREA 4 .........................................................................................................28
3.3
4.
METHODOLOGY .................................................................................................28
RESULTS OF ELECTRICAL STUDIES ......................................................................30
4.1
PROTECTION COORDINATION RESULTS .......................................................30
4.1.1
AREA 1 .........................................................................................................30
4.1.2
AREA 2 .........................................................................................................62
4.1.3
AREA 3 .........................................................................................................87
4.1.4
AREA 4 .......................................................................................................129
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5.
RECOMMENDATIONS AND CONCLUSIONS .........................................................142
5.1
AREA 1...............................................................................................................142
5.2
AREA 2...............................................................................................................142
5.3
AREA 3...............................................................................................................142
5.4
AREA 4...............................................................................................................143
6.
REFERENCES ..........................................................................................................144
7.
ANNEXES .................................................................................................................145
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ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
21466447-D-0000-EL-MEM-00003-1
FIGURE INDEX
Pg.
Figure 1 Geographical location of the project .....................................................................11
Figure 2 Single Line Diagram of electrical system of the LNCMOP project .......................12
Figure 3 Location of project substations .............................................................................14
Figure 4 Coordination Route A - Area 1 .............................................................................19
Figure 5 Coordination Route B - Area 1 .............................................................................20
Figure 6 Percent differential operating characteristic GE T60 ............................................21
Figure 7 Coordination Route A (left) and B (right) - Area 2 ................................................23
Figure 8 Coordination Route A - Area 3 .............................................................................25
Figure 9 Coordination Route B - Area 3 .............................................................................26
Figure 10 Coordination Route C - Area 3 ...........................................................................27
Figure 11 Coordination - Area 4 .........................................................................................29
Figure 12 Three-Phase Fault. Motor 4125-PPP160A .........................................................34
Figure 13 Single-Phase to Ground Fault- Phase plot. Motor 4125-PPP160A. ...................35
Figure 14 Single-Phase to Ground Fault-Earth plot. Motor 4125-PPP160A .......................35
Figure 15 Three-Phase Fault. Motor 3140-CVB115M ........................................................36
Figure 16 Single-Phase to Ground Fault-Phase Plot. Motor 3140-CVB115M ....................37
Figure 17 Single-Phase to Ground Fault-Earth Plot. Motor 3140-CVB115M .....................37
Figure 18 Three-Phase Fault. Motor 4110-COM020A........................................................38
Figure 19 Single-Phase to Ground Fault-Phase plot. Motor 4110-COM020A ....................39
Figure 20 Single-Phase to Ground Fault-Earth plot. Motor 4110-COM020A .....................39
Figure 21 Three-Phase Fault. Motor 4110-PPS050M ........................................................40
Figure 22 Single-Phase to Ground Fault-Phase plot. Motor 4110-PPS050M ....................41
Figure 23 Single-Phase to Ground Fault-Earth plot. Motor 4110-PPS050M ......................41
Figure 24 Three-Phase Fault. Bus 3145-MCL101 ..............................................................42
Figure 25 Single-Phase to Ground Fault-Phase plot. Bus 3145-MCL101 ..........................43
Figure 26 Single-Phase to Ground Fault-Earth plot. Bus 3145-MCL101 ............................43
Figure 27 Three-Phase Fault. Bus 4110-MCL101 ..............................................................44
Figure 28 Single-Phase to Ground Fault-Phase plot. Bus 4110-MCL101 ..........................45
Figure 29 Single-Phase to Ground Fault-Earth plot. Bus 4110-MCL101 ............................45
Figure 30 Three-Phase Fault. Bus 4125-MCL101 ..............................................................46
Figure 31 Single-Phase to Ground Fault-Phase plot. Bus 4125-MCL101 ..........................47
Figure 32 Single-Phase to Ground Fault-Earth plot. Bus 4125-MCL101 ............................47
Figure 33 Three-Phase Fault. Bus 4110-ATL101 ...............................................................48
Figure 34 Single-Phase to Ground Fault-Phase plot. Bus 4110-ATL101 ...........................49
Figure 35 Single-Phase to Ground Fault-Earth plot. Bus 4110-ATL101 .............................49
Figure 36 Three-Phase Fault. Motor 4110-MIL125 ............................................................52
Figure 37 Single-Phase to Ground Fault-Phase Plot. Motor 4110-MIL125 ........................53
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Figure 38 Single-Phase to Ground Fault-Earth Plot. Motor 4110-MIL125 ..........................53
Figure 39 Three-Phase Fault. Bus 4110-VFD100A ............................................................54
Figure 40 Single-Phase to Ground Fault-Phase plot. Bus 4110-VFD100A ........................55
Figure 41 Single-Phase to Ground Fault-Earth plot. Bus 4110-VFD100A ..........................55
Figure 42 Three-Phase Fault. Motor 4110-PPP130 ...........................................................56
Figure 43 Single-Phase to Ground Fault-Phase plot. Motor 4110-PPP130 .......................57
Figure 44 Single-Phase to Ground Fault-Earth plot. Motor 4110-PPP130 .........................57
Figure 45 Three-Phase Fault. Bus 4110-SGM101 .............................................................58
Figure 46 Single-Phase to Ground Fault-Phase plot. Bus 4110-SGM101 .........................59
Figure 47 Single-Phase to Ground Fault-Earth plot. Bus 4110-SGM101 ...........................59
Figure 48 Percent differential operating characteristic. Transformer 4110-XTR101 ..........62
Figure 49 Three-Phase Fault. Motor 4131-PPP155A .........................................................64
Figure 50 Single-Phase to Ground Fault-Phase Plot. Motor 4131-PPP155A .....................65
Figure 51 Single-Phase to Ground Fault-Earth Plot. Motor 4131-PPP155A ......................65
Figure 52 Three-Phase Fault. Motor 4131-COM120A........................................................66
Figure 53 Single-Phase to Ground Fault-Phase Plot. Motor 4131-COM120A ...................67
Figure 54 Single-Phase to Ground Fault-Earth Plot. Motor 4131-COM120A .....................67
Figure 55 Three-Phase Fault. Bus 4131-MCL101 ..............................................................68
Figure 56 Single-Phase to Ground Fault-Phase plot. Bus 4131-MCL101 ..........................69
Figure 57 Single-Phase to Ground Fault-Earth plot. Bus 4131-MCL101 ............................69
Figure 58 Three-Phase Fault. Motor 4131-AGI120 ............................................................72
Figure 59 Single-Phase to Ground Fault-Phase plot. Motor 4131-AGI120 ........................73
Figure 60 Single-Phase to Ground Fault-Earth plot. Motor 4131-AGI120 ..........................73
Figure 61 Three-Phase Fault. Bus 4131-MCL102 ..............................................................74
Figure 62 Single-Phase to Ground Fault-Phase plot. Bus 4131-MCL102 ..........................75
Figure 63 Single-Phase to Ground Fault-Earth plot. Bus 4131-MCL102 ............................75
Figure 64 Three-Phase Fault. Tower 4131-CNH005 ..........................................................76
Figure 65 Single-Phase to Ground Fault-Phase plot. Tower 4131-CNH005 ......................77
Figure 66 Single-Phase to Ground Fault-Earth plot. Tower 4131-CNH005 ........................77
Figure 67 Three-Phase Fault. Load 4131-XFL101 .............................................................78
Figure 68 Single-Phase to Ground Fault-Phase plot. Load 4131-XFL101 .........................79
Figure 69 Single-Phase to Ground Fault-Earth plot. Load 4131-XFL101 ...........................79
Figure 70 Three-Phase Fault. Bus 4131 SGL101 ..............................................................81
Figure 71 Single-Phase to Ground Fault-Phase plot. Bus 4131 SGL101 ...........................82
Figure 72 Single-Phase to Ground Fault-Earth plot. Bus 4131 SGL101 ............................82
Figure 73 Three-Phase Fault at 50% of the line 4131 SGL101 – 4131 MCL101 ...............83
Figure 74 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 MCL101
Phase plot ...........................................................................................................................84
Figure 75 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 MCL101
Earth plot ............................................................................................................................84
Figure 76 Three-Phase Fault at 50% of the line 4131 SGL101 – 4131 ATL101 ................85
Figure 77 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 ATL101
Phase plot ...........................................................................................................................86
Figure 78 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 ATL101
Earth plot ............................................................................................................................86
Figure 79 Three-Phase Fault. Motor 4132-PPP160A .........................................................89
Figure 80 Single-Phase to Ground Fault-Phase plot. Motor 4132-PPP160A .....................90
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Figure 81 Single-Phase to Ground Fault-Earth plot. Motor 4132-PPP160A .......................90
Figure 82 Three-Phase Fault. Motor 4132-COM020A........................................................91
Figure 83 Single-Phase to Ground Fault Phase plot. Motor 4132-COM020A ....................92
Figure 84 Single-Phase to Ground Fault Earth plot. Motor 4132-COM020A ......................92
Figure 85 Three-Phase Fault. Bus 4132-MCL101 ..............................................................93
Figure 86 Single-Phase to Ground Fault Phase plot. Bus 4132-MCL101 ..........................94
Figure 87 Single-Phase to Ground Fault Earth plot. Bus 4132-MCL101 ............................94
Figure 88 Three-Phase Fault. Bus 4132-SGL101 (LV XTR101) ........................................95
Figure 89 Single-Phase to Ground Fault Phase plot. Bus 4132-SGL101 (LV XTR101) .....96
Figure 90 Single-Phase to Ground Fault Earth plot. Bus 4132-SGL101 (LV XTR101) ......96
Figure 91 Three-Phase Fault. Internal Bus HV 4132 XTR101 ...........................................97
Figure 92 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR101 ........98
Figure 93 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR101 .........98
Figure 94 Three-Phase Fault. Motor 4132-HYS145 .........................................................101
Figure 95 Single-Phase to Ground Fault Phase plot. Motor 4132-HYS145 .....................102
Figure 96 Single-Phase to Ground Fault Earth plot. Motor 4132-HYS145 .......................102
Figure 97 Three-Phase Fault. Motor 4132-AGI115 ..........................................................103
Figure 98 Single-Phase to Ground Fault Phase plot. Motor 4132-AGI115 .......................104
Figure 99 Single-Phase to Ground Fault Earth plot. Motor 4132-AGI115 ........................104
Figure 100 Three-Phase Fault. Feeder Circuit Braker 4132-MCL102 ..............................105
Figure 101 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-MCL102
..........................................................................................................................................106
Figure 102 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-MCL102
..........................................................................................................................................106
Figure 103 Three-Phase Fault. Feeder Circuit Braker 4132-MCL103 ..............................107
Figure 104 Single-Phase to Ground Fault. Feeder Phase plot. Circuit Braker 4132-MCL103
..........................................................................................................................................108
Figure 105 Single-Phase to Ground Fault. Feeder Earth plot. Circuit Braker 4132-MCL103
..........................................................................................................................................108
Figure 106 Three-Phase Fault. Feeder Circuit Braker 4132-ATL101 ...............................109
Figure 107 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-ATL101
..........................................................................................................................................110
Figure 108 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-ATL101
..........................................................................................................................................110
Figure 109 Three-Phase Fault. Feeder Circuit Braker 4132-SGL102 ..............................111
Figure 110 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-SGL102
..........................................................................................................................................112
Figure 111 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-SGL102
..........................................................................................................................................112
Figure 112 Three-Phase Fault. Internal Bus HV 4132 XTR102 .......................................113
Figure 113 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR102 ....114
Figure 114 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR102 .....114
Figure 115 Three-Phase Fault. Bus 4132-SGM-101 ........................................................116
Figure 116 Single-Phase to Ground Fault Phase plot. Bus 4132-SGM-101 ....................117
Figure 117 Single-Phase to Ground Fault Earth plot. Bus 4132-SGM-101 ......................117
Figure 118 Three-Phase Fault. Internal Bus HV 4132 XTR103 .......................................118
Figure 119 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR103 ....119
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Figure 120 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR103 .....119
Figure 121 Three-Phase Fault. Internal Bus HV 4132 XTR101 .......................................121
Figure 122 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR101 ....122
Figure 123 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR101 .....122
Figure 124 Three-Phase Fault. Internal Bus HV 4132 XTR102 .......................................123
Figure 125 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR102 ....124
Figure 126 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR102 .....124
Figure 127 Three-Phase Fault. Internal Bus HV 4132 XTR103 .......................................125
Figure 128 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR103 ....126
Figure 129 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR103 .....126
Figure 130 Three-Phase Fault Switchgear 4132-SGH101 ...............................................127
Figure 131 Single-Phase to Ground Fault Phase plot. Switchgear 4132-SGH101 ..........128
Figure 132 Single-Phase to Ground Fault Earth plot. Switchgear 4132-SGH101 ............128
Figure 133 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4110-SGH101 ...........131
Figure 134 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4110-SGH101
Phase plot .........................................................................................................................132
Figure 135 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4110-SGH101
Earth plot ..........................................................................................................................132
Figure 136 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4131-SGH101 ...........133
Figure 137 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4131-SGH101
Phase plot. ........................................................................................................................134
Figure 138 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4131-SGH101
Earth plot. .........................................................................................................................134
Figure 139 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4132-SGH101 ...........135
Figure 140 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4132-SGH101
Phase plot. ........................................................................................................................136
Figure 141 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4132-SGH101
Earth plot. .........................................................................................................................136
Figure 142 Three-Phase Fault. Bus 6130 SGH101 ..........................................................137
Figure 143 Single-Phase to Ground Fault. Bus 6130 SGH101 Phase plot. .....................138
Figure 144 Single-Phase to Ground Fault. Bus 6130 SGH101 Earth plot. .......................138
Figure 145 Percent differential operating characteristic. Transformer 4110-TXR101 ......141
TABLE INDEX
Pg.
Table 1 Climatological characteristics of the LNCMOP project ..........................................11
Table 2 – Information provided by client .............................................................................12
Table 3 The Trujillo Norte substation's network equivalent calculation parameters for the
year 2026. ...........................................................................................................................13
Table 4 Parameters Trujillo Norte - Alto Chicama Line 138 kV ..........................................14
Table 5 Concentrated parameters of main conductors .......................................................15
Table 6 Project load summary ............................................................................................16
Table 7 Proposed protection adjustments Route A – Area 1 ..............................................32
Table 8 Proposed protection adjustments Route B - Area 1 ..............................................51
Table 9 Current variation due to tap changer operation Transformer 4110-XTR101 .........61
Table 10 Proposed protective adjustments route A - Area 2 ..............................................63
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Table 11 Proposed protective adjustments route A – Area 2 .............................................71
Table 12 Proposed protective adjustments Transformer 4131-XTR101 – Area 2 ..............80
Table 13 Proposed protective adjustments Route A – Area 3 ............................................88
Table 14 Proposed protective adjustments Route B – Area 3 ..........................................100
Table 15 Proposed protective adjustments Route C – Area 3 ..........................................115
Table16 Proposed protective adjustments Feeder 4132-SGH101 – Area3 .....................120
Table 17 Proposed protective adjustments Route – Area 4 .............................................130
Table 18 Current variation due to tap changer operation Transformer 4110-TXR101 .....140
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1. INTRODUCTION
1.1 OBJECTIVE
Present results of electrical studies of protection coordination of the project for the
“Optimización de Material Carbonoso Lagunas Norte” (LNCMOP).
1.2 SCOPE
The LNCMOP project's studies for the loads connected to the substations known as Alto
Chicama, Area 1, Area 2, and Area 3 include the development of load flow, short circuit,
protection coordination, arc-flash, and motor starting studies, as well as the verification and
validation of the capacities of the defined elements, such as nominal and fault currents,
voltage profiles, and others, as well as the definition of operating setpoints of the
transformers.
This document presents the protection coordination results for the LNCMOP project's
substations.
1.3 STANDARDS AND REGULATIONS
•
•
•
•
•
•
•
•
•
•
•
“Código Nacional de Electricidad – utilización”.
PR-20. “Ingreso, modificación y retiro de instalaciones en el SEIN”.
IEC 60909 - Short-circuit currents in three-phase A.C. systems.
IEEE 1584 “Guide for performing arc-flash Hazard Calculations”
ANSI/IEEE 141 “IEEE Recommended Practice for Electric Power Distribution for
Industrial Plants”
NFPA 70E "Electrical Safety in Workplaces”
IEEE 242 Buff Book Recommended-practice-for-protection-and-coordination-ofindustrial.
IEEE 3004.5 Recommended-practice-for-the-application-of-low voltage-circuits Breakers
in Industrial and Commercial Power Systems.
IEEE 3004.7 Recommended Practice for Conductor Protection in Industrial and
Commercial Power Systems.
IEEE 3004.8 Recommended-practice-for-motor-protection-in-industrial-and Commercial
Power Systems.
IEEE C37.91 Guide-for-protecting-power-transformers.
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2. DESCRIPTION OF SYSTEM AND ELECTRICAL MODEL
2.1 PROJECT LOCATION AND CLIMATE CONDITIONS
The LNCMOP project is located at the -7.960347°N, -78.242833°W coordinates, which will
be connected to the Trujillo Norte substation, which is approximately 100 kilometers away,
as shown in Figure 1.
Figure 1 Geographical location of the project
Table 1 shows the main climatological characteristics that will be considered for the electrical
studies based on the project's location.
Table 1 Climatological characteristics of the LNCMOP project
Variable
Maximum Temperature
Medium Temperature
Altitude
Value
30°C
20°C
4,100 m.s.n.m
2.2 SYSTEM DESCRIPTION
The LNCMOP project consists of an Electrical Substation called Alto Chicama, which has
four (4) power transformers: three (3) with nominal capacities of 12/15 MVA and voltage
ratios of 138/13.8 kV, and one (1) with nominal capacities of 20/25MVA and voltage ratios
of 138/22.9 kV, the latter of which is covered by the electrical studies. This substation is
interconnected with the Trujillo Norte substation through a 98.95 km transmission line at a
voltage level of 138kV.
As shown in Figure 2, the 22.9 kV bar feeds three substations referred to as Area 1, Area 2,
and Area 3. Also, static capacitive compensations are considered at the different voltage
levels as shown below:
•
•
•
13.8kV level: 1.5 MVAr reactive compensation
22.9kV level: 7.5 MVAr reactive compensation
138kV level: 13 MVAr reactive compensation
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Figure 2 Single Line Diagram of electrical system of the LNCMOP project
2.3 DEMAND SCENARIO FOR THE LNCMOP PROJECT
For the purposes of this study, a demand scenario is analyzed based on the information
provided by the customer listed in Table 2.
Table 2 – Information provided by client
File
21466447-D-0000-ME-LST-00001_1_entrabajo 12-10-2022.xlsx
GLX4500006027-CMOP-EN-6192-EL-DWG-00001_(C4) PL - Trazado de ruta de
línea.dwg
Diagramas Unifilares Redline_Actualizados Nov 18.zip
Date
13/10/2022
24/10/2022
18/11/2022
Based on the above, the maximum demand scenario obtained is defined according to the
type of equipment operation defined in document 21466447-D-0000-ME-LST00001_1_entrabajo 12-10-2022.xlsx. This document defines 3 types of operation:
continuous, intermittent, and standby. All equipment whose mode of operation is standby is
not considered for the purposes of the studies. The other equipment and loads indicated in
the single-line diagrams in redline are considered in operation for this study. This operational
configuration of equipment defines the maximum demand scenario that is analyzed in the
electrical studies.
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2.4 ELECTRICAL MODEL
The electrical model is made according to what is indicated in the file "Diagramas Unifilares
Redline_Actualizados Nov 18.zip", which contains the one-line diagrams of each of the
Areas with their respective annotations and adjustments. The assumptions and
considerations for the development of the electrical model of the LNCMOP project are
described below.
2.4.1
ELECTRICAL GRID EQUIVALENT
Considering the radial connection of the Project to the interconnected system, the 138 kV
busbar of the Trujillo Norte substation will be used as a network equivalent in the electric
model. For the modeling of this equivalent, the most critical conditions (short circuit level and
voltage) of the generation and demand dispatch scenarios for the year 2026, obtained from
the DIgSILENT electrical model, which was published by the COES in September 2022, is
selected for the analysis. See Table 3.
Table 3 The Trujillo Norte substation's network equivalent calculation parameters for the year 2026.
Sk
2253.3 MVA
Ik
9.227 kA
X/R
13.57
The 138kV grid modeled considers the connection of the 10 MW load with a power factor of
0.956 corresponding to Huamacucho project according to the information found in SEIN's
database.
2.4.2
SUBSTATION AREAS
The LAGUNAS NORTE CARBONACEUS MATERIAL OPTIMIZATION PROJECT
(LNCMOP) is divided into 4 areas according to the information provided, which are listed
below:
•
•
•
•
Area 1: Ore Recovery/Mineral Preparation, Grinding and Thickening.
Area 2: CIL Circuit
Area 3: Leach Thickening & Filtration.
Area 4: 138 kV grid and Alto Chicama substation
Figure 3 shows the spatial distribution of the substations in each of the areas.
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Figure 3 Location of project substations
2.4.3
LINES AND CONDUCTORS
For the purposes of the electrical model, the Trujillo Norte – Alto Chicama 138 kV
transmission line will be considered, whose parameters are obtained from the SEIN
database published by COES in September 2022, which are listed in Table 4.
Table 4 Parameters Trujillo Norte - Alto Chicama Line 138 kV
Longitude [km]
100.4
Ampacity [kA]
0.209
Positive
sequence
Zero
sequence
R [Ohm/km]
0.159
X [Ohm/km]
0.511
B [uS/km]
3.238
R [Ohm/km]
0.452
X [Ohm/km]
1.459
B [uS/km]
1.904
The information for the modeling of the conductors between the 22.9 kV busbar and the
busbars in each of the areas was obtained from the layout GLX4500006027-CMOP-EN6192-EL-DWG-00001_(C4) PL - Trazado de ruta de línea.dwg supplied by customer.
Finally, the information on the rest of the conductors was obtained from the power cables
list provided in the following documents:
•
•
•
21466447-D-3145-EL-LST-00003_0.pdf
21466447-D-4131-EL-LST-00003_B.pdf
21466447-D-4132-EL-LST-00003-0.pdf
For the conductors which are not included in the above-mentioned list, the specification
indicated in the single-line diagram was used.
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For these feeders, the concentrated line parameters will be obtained using the typical
parameters of the conductors available in the ETAP or PowerFactory DIgSILENT
software libraries for conductors with XHHW-2 or MV-105 5 kV and 25 kV 133%
insulation as appropriate. Table 5 presents the concentrated parameters of the feeder
cables of the switchboards, MCCs and transformers. The complete list of cables,
including the circuits to the loads, are presented in Annex A.
Table 5 Concentrated parameters of main conductors
Type
Name
Area
Nominal
Irated Length
R1
X1
R0
X0
Voltage
[kA]
[m]
[mOhm] [mOhm] [mOhm] [mOhm]
[kV]
3145MCL101-P
750 MCM + SHD
Area 1
2.24
60
0.48
1.0
1.5
3.7
35.6
4110-BSL101
Bus Duct 3000A
Area 1
3.00
15
4.16
0.2
0.0
0.0
0.0
4110BDM101-M
750 MCM + SHD
Area 1
1.12
20
4.16
0.7
1.0
2.4
23.7
4110MCL101-P
750 MCM + SHD
Area 1
2.80
60
0.48
0.8
1.2
2.9
28.5
4110SGH101-H
266.8 MCM
Area 4
0.38
271
22.9
74.0
116.0
121.7
575.2
4110SGM101-M
500 MCM + SHD
Area 1
0.42
50
22.9
4.6
5.1
13.5
120.3
4110XTR101-H
500 MCM + SHD
Area 1
0.42
50
22.9
4.6
5.1
13.5
120.3
4125MCL101-P
750 MCM + SHD
Area 1
1.12
60
0.48
2.0
3.1
7.3
71.2
4131-BSL100
Bus Duct 4000A
Area 2
4.00
12
0.48
0.1
0.0
0.0
0.0
4131-BSL101
Bus Duct 2500A
Area 2
2.50
12
0.48
0.2
0.0
0.0
0.0
4131ATL101-P
600 MCM + 2/0G
Area 2
2.34
35
0.48
0.7
0.8
2.3
21.2
4131MCL102-P
600 MCM + 2/0G
Area 2
2.34
23
0.48
0.5
0.5
1.5
14.0
4131SGH101-H1
266.8 MCM ACSR
Area 4
0.38
125
22.9
34.1
53.5
56.1
265.3
4131SGH101-H2
500 MCM
Area 4
0.42
209
22.9
33.8
33.5
70.9
488.6
4132ATL101-P1
500 MCM + SHD
Area 3
1.25
40
0.48
1.2
1.4
3.6
32.1
4132MCL101-P
500 MCM + SHD
Area 3
2.50
40
0.48
0.6
0.7
1.8
16.0
4132MCL102-P
500 MCM + SHD
Area 3
2.09
40
0.48
0.7
0.8
2.2
19.2
4132MCL103-P
500 MCM + SHD
Area 3
1.25
20
0.48
0.6
0.7
1.8
16.0
4132SGH101-H
500 MCM
Area 4
0.42
169
22.9
27.3
27.1
57.3
395.1
4132SGM101-M
500 MCM + SHD
Area 3
0.42
50
4.16
4.6
5.1
13.5
120.3
4132XTR101-H
4/0 AWG 25kV
Area 3
0.24
40
22.9
8.8
4.3
16.0
100.0
4132XTR102-H
4/0 AWG 25kV
Area 3
0.24
50
22.9
11.1
5.4
19.9
125.0
4132XTR103-H
4/0 AWG 25kV
Area 3
0.24
30
22.9
6.6
3.2
12.0
75.0
6130SGH101-H
3C 4/0 AWG 25KV
133%
Area 4
3.54
80
22.9
0.9
1.5
3.5
6.0
2.4.4
LOADS AND MOTORS
The information used for the modeling of the electrical equipment (motors) is provided in the
document "21466447-D-0000-ME-LST-00001_1_entrabajo 12-10-2022.xlsx". Annex B
shows the rated power and starting type for motors.
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Table 6 shows a summary of the loads contemplated in the study according to the
considerations indicated in Chapter 2.3 compared with the information gived in the
document GLX-100101-TRM-0014.pdf.
Table 6 Project load summary
Demand
Projection
[MW]
15.0
22.5
Study
Information
[MW]
14.95
12.43
Subtotal Power Demand LNCMOP
37.5
27.38
Huamachuco Project
10.0
10.00
Total Power Demand
47.5
37.38
Description
Current Demand Lagunas Norte
Area 1, 2 y 3 Demand
According to the above, the total demand of the project is 27.38 MW, which is lower than
the value listed in document GLX-100101-TRM-0014.pdf where the total demand of the
project is 37.5 MW.
The electrical model resulting from the information previously described, and on which the
present study is based, is the one provided in Annex E of the document 21466447-D-0000EL-MEM-00001 Load Flow and Short Circuit Study [1].
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3. PROTECTION COORDINATION METHODOLOGY
3.1 GENERAL OBJECTIVES
The study of protection coordination has as its objective the definition of families and
adjustments that correspond to electrical protections to ensure the times and clearance
failures that allow a secure system recovery.
3.2 GENERAL CRITERIA
As criteria for the protection coordination study are:
•
The protection coordination study considers ABB circuit breakers for the low voltage
level and General Electric (GE) relays for the medium voltage level.
•
To establish the coordination of the phase overcurrent function, we start from the
rated current of the equipment according to its power and apply a factor of 1.25 and
for transformers a factor of 1.3 is considered.
•
To establish the coordination of the ground overcurrent function, we start from the
nominal current of the equipment according to its power, with a factor of 0.2. We also
take into consideration the zero sequence current contributions limited by the neutral
resistance grounded in the different transformers, and the setting ranges allowed by
the modeled relay manufacturers.
•
The motor starting curves obtained in document 21466447-D-0000-EL-MEM-00002
Motor Starting Study, being considered to determine the start of operation of the
equipment and to define the instantaneous current that clears faults.
•
The results obtained from the study of coordination of protections parts of the
proposed routes, evaluating the equipment of higher power, where selectivity with
the adjacent upstream protections is guaranteed.
The protection coordination study seeks to provide a reliable and safe service by obtaining
the adequate selectivity of the protection elements against faults that may occur in the
system, in such a way that the least possible number of protections act to isolate the faulted
elements and that the protection system does not produce undesirable effects in the existing
installations.
In order to guarantee this selectivity, the operation curves of the protection devices will be
analyzed until the optimum operation point is found. From this point, the calibration and
adjustment parameters of the relays are determined according to their function.
3.2.1
AREA 1
The electrical system corresponding to Area 1 establishes the electrical supply starting from
Medium Voltage Switchgear 4110-SGH101 when connecting to the main substation C1
6130-SGH101.
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Starting from Medium Voltage Switchgear 4110-SGH101 feeding transformer 4110-XTR101
of 12 MVA-ONAF and transformer 4110-XTR102 of 2.5 MVA.
This allows to establish two coordination routes, the first one A is associated to the output
that feeds the low voltage equipment C2 that connects the 4110-SGH101 cubicle with the
4110-SGL101 cubicle and from this it is subdivided into A1, A2 and A3 which are connected
to the 4110-SGL101 cubicle where A1: 3145-MCL101 cubicle, A2: 4110-MCL101 and A3:
4125-MCL101 cubicle as shown in the Figure 4, for better visualization refer to Annex E.
Route B is associated to the C1 output of the 4110-SGH101 cubicle allowing the power
supply of the Medium Voltage Switchgear 4110-SGM101, associating the power supply of
the 4110-VDF100A cubicle speed variators and the 4110-SGM101 cubicle speed drives as
can be seen in the Figure 5, for better visualization refer to Annex E.
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Figure 4 Coordination Route A - Area 1
Figure 5 Coordination Route B - Area 1
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Taking into consideration the unit protection function (ANSI 87T) differential of transformer
4110-XTR101 and 12 MVA and 22.9/0.48 kV ratio, the differential percentage characteristic
to be implemented is defined under the guidelines of the GE T60 relay instruction manual,
as shown in the following Figure 6.
Figure 6 Percent differential operating characteristic GE T60
Settings are defined as follows [2]:
PERCENT DIFFERENTIAL PICKUP — This setting defines the minimum differential current
required for operation. It is chosen, based on the amount of differential current that can be
seen under normal operating conditions. Two factors can create differential current during
the normal transformer operation: errors due to CT inaccuracies and current variation due
to onload tap changer operation. To prevent the relay from picking up during normal
operating conditions, configure this pickup setting at 10% or higher and take into account
maximum magnitude compensation factor.
PERCENT DIFFERENTIAL SLOPE 1 — Defines the percentage bias for the restraining
currents below the lower breakpoint (BREAK 1). This setting determines the sensitivity of
the relay for low current internal faults. The setting must be set high enough to cope with the
spurious differential current resulting from inaccuracy of the CTs operating in their linear
mode, that is, in load conditions and during distant external faults.
PERCENT DIFFERENTIAL SLOPE 2 — Defines the percentage bias for the restraining
currents above the higher breakpoint (BREAK 2). This setting affects stability of the relay for
heavy external faults. Traditionally, the value chosen for this setting needs to be high enough
to accommodate the spurious differential current resulting from saturation of the CTs during
heavy external faults. This requirement can be considerably relaxed in favor of sensitivity
and speed of operation as the relay detects CT saturation and upon detection applies the
directional principle to prevent maloperation. When adjusting this setting, keep in mind that
the restraining signal is created as the maximum of all the input currents.
3.2.2
AREA 2
The electrical system corresponding to Area 2 establishes the power supply to the different
loads through the transformer 4141-XTR101 of 2.5 MVA and voltage of 22.9/0.48 kV,
located in the area 4131-US101, the transformer will be the reference for the power supply
of the Motor Control Center 4131-MCL101 and the Motor Control Center Critical Loads
4131-MCL102 as shown in Figure 7, for better visualization refer to Annex E .
In the Motor Control Centers 4131-MCL101 and 4131-MCL102, the highest power loads are
taken to establish the coordination with the upstream protections guaranteeing selectivity;
with the above, two coordination paths A and B are established as shown in Figure 7, for
better visualization refer to Annex E.
Coordination route A starts from the 4131-MCL101 cubicle containing the following
representative loads; CIL Compressor of 265 hp and the CIL Residue, Pump of 250 hp,
coordinating with the Low Voltage Switchgear 4131-SGL101 and with the transformer
protections 4131-XTR101 22.9/0.48 kV.
Coordination route B starts from the 4131-MCL102 cubicle containing the following
representative loads; Tower Crane of 200 hp, the Agitator CIL of 75 Hp and the Distribution
Panel Board of 75 kVA, coordinating with the Transfer Panel 4131-ATL101, then with the
Low Voltage Switchgear 4131-SGL101 and with the transformer protections 4131-XTR101
22.9/0.48 kV.
The general criteria for determining the start-up of the short-circuit protection functions, as
applied to the proposed coordination paths, are set out below:
•
•
•
Start-up Phase Timed Overcurrent Function “ANSI 51”: 125% of the rated current on
low voltage loads and 130% of the ONAF rated current of the power transformer are
contemplated.
Start-up Function Timed Neutral Overcurrent “ANSI 51N”: 20% of the rated current
is considered for low voltage loads and 20% to 40% of the rated current is taken for
the transformer.
For Phase and Ground Instantaneous Overcurrent functions "ANSI 50 and ANSI
50N": It will be set for MV and LV motors and loads, corresponding to prevent the
motor starter from entering the magnetic stage of the protection characteristic and in
other equipment, it will be set "N" times the rated current allowing amperometric
coordination and energy selectivity.
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Figure 7 Coordination Route A (left) and B (right) - Area 2
3.2.3
AREA 3
The electrical system corresponding to Area 3 energizes transformers 4132-XTR101, 4132XTR102, with a capacity of 2.5 MVA and voltage 22.9/0.48kV each.
Where transformer 4132-XTR101 feeds the motor control center cell 4132-MCL101,
transformer 4132-XTR102 feeds the motor control center cell 4123-MCL102, also feeds the
emergency motor control center cell 4123-MCL103 and transformer 4132-XTR103 feeds the
Medium Voltage Switchgear 4.16 kV cell 4132-SGM101; allowing to establish for Area 3,
three coordination routes to be evaluated.
Coordination route A starts from Switchgear 4132-MCL101 containing the following
representative loads; 100HP Pump Filtrate CIL Residue 4132-PPP160A-M and 250HP
Compressor 4132-COM020, coordinating with Low Voltage Switchgear 4132-SGL101 and
transformer protections 4132-XTR101 22.9/0.48 kV to Medium Voltage Switchgear (GIS)
4132-SGH101 as shown in Figure 8, for better visualization refer to Annex E.
Coordination route B starts from Cell 4123-MCL102 containing the following representative
loads; 200HP Hydraulic Unit Filter 4132-HYS145, coordinating with Switchgear 4132SGL102; having two main outputs, it feeds the transfer switchgear 4132-ATL101 and
continuing to the switchgear 4132-MCL103 coordinating with the Transfer Panel 4131ATL101, then with the Low Voltage Switchgear 4132-SGL102 and after that with the
transformer protections 4132-XTR102 22. 9/0.48kV up to the Medium Voltage Switchgear
(GIS) 4132-SGH101 as shown in Figure 9, for better visualization refer to Annex E.
Coordination route C, that the setting for transformer protections 4132-XTR103 22.9/4.16
kV up to the Medium Voltage Switchgear (GIS) 4132-SGH101 as shown in Figure 10.
The general criteria for determining the start-up of the short-circuit protection functions, as
applied to the proposed coordination paths, are set out below:
•
•
•
Start-up Phase Timed Overcurrent Function “ANSI 51”: 125% of the rated current is
contemplated for low voltage loads and 130% of the ONAF rated current of the power
transformer.
Start-up Neutral Timed Overcurrent Function “ANSI 51N”: 20% of the nominal
current is considered for low voltage loads and 20% to 40% of the nominal current is
considered for the transformer.
For the functions of Instantaneous Phase and Ground Overcurrent "ANSI 50 and
ANSI 50N": It will be adjusted for motors and loads in MV and LV, corresponding to
prevent the motor start from entering the magnetic stage of the protection
characteristic and in other equipment it will be set "N" times the rated current allowing
amperimetric coordination and energy selectivity.
Figure 8 Coordination Route A - Area 3
Figure 9 Coordination Route B - Area 3
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Figure 10 Coordination Route C - Area 3
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3.2.4
AREA 4
In order to establish the settings corresponding to Area 4, the current starts are related in a
generalized way in primary values where the main transformer with power 25 MVA-ONAF
and voltage 138/22.9 kV is established, transmitting the power to Area 1 and Area 2 and 3
as shown in the Figure 11, for better visualization refer to Annex E.
The general criteria for determining the start-up of the short-circuit protection functions, as
applied to the proposed coordination paths, are set out below:
•
•
ANSI 51" timed overcurrent start-up: 125% of the rated current on the current
resulting from the capacity of the conductors and 130% of the ONAF rated current
of the power transformer are allowed.
ANSI 51N" timed neutral overcurrent pickup function: 20% of rated current.
It is also contemplated that the main transformer has a grounded neutral resistor that
limits the residual current to about 25A, so the proposed setting values ensure
adequate detection of ground faults.
3.3 METHODOLOGY
The standard protection coordination criteria are determined by voltage level and type of
protection that will be the basis for defining the protection settings resulting from the
coordination.
These criteria and operation are determined according to the peruvian electrical regulations
and IEEE STD 242-2001, and those that are handled in the project, to be applied to carry
Based on the ANSI/IEEE 141out the protection coordination analysis.
To guarantee this selectivity, the operating curves of the protection devices will be analyzed
until the optimal operating point is found. From this point, the calibration and adjustment
parameters of the relays are determined according to their function. This study is
development using the last version of DigSILENT and the summary tables with the setting
recommendation defined for each circuit breaker and relay are presented in Annex C.
Figure 11 Coordination - Area 4
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4. RESULTS OF ELECTRICAL STUDIES
4.1 PROTECTION COORDINATION RESULTS
4.1.1
AREA 1
4.1.1.1 Protection Coordination Route "A"- Area 1
With the criteria defined above, the highest power loads corresponding to the Low voltage
Motor Control Center 3145-MCL101, 4125-MCL101, 4110-MCL101 are taken, and the
following reference current values are obtained for the adjustment proposal:
•
C25. 4125-VFD160A, PPP160A Pump Grinding Thickener of 125 hp with 480 V
voltage
125𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑃𝑢𝑚𝑝 𝐺𝑟𝑖𝑛𝑑𝑖𝑛𝑔 𝑇ℎ𝑖𝑐𝑘𝑒𝑛𝑒𝑟 →
= 112.16𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑃𝑢𝑚𝑝 𝐺𝑟𝑖𝑛𝑑𝑖𝑛𝑔 𝑇ℎ𝑖𝑐𝑘𝑒𝑛𝑒𝑟 → 112.162𝐴 𝑥 1.25 = 140.2𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑃𝑢𝑚𝑝 𝐺𝑟𝑖𝑛𝑑𝑖𝑛𝑔 𝑇ℎ𝑖𝑐𝑘𝑒𝑛𝑒𝑟 → 112.162𝐴 𝑥 0.20 = 22.43𝐴
•
C3. 3140-CVB115M Conveyor Belt to Scrubber of 100 hp 480 V voltage
100𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡Conveyor Belt to Scrubber →
= 89.73𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Conveyor Belt to Scrubber → 89.73𝐴 𝑥 1.25 = 112.16𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Conveyor Belt to Scrubber → 89.73𝐴 𝑥 0.20 = 17.95𝐴
•
C28. 4110-COM020A Compressor Plant Air of 150 hp with 480 V voltage
150𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Compressor Plant Air →
= 134.595𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Compressor Plant Air → 134.595𝐴 𝑥 1.25 = 168.24𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Compressor Plant Air → 134.595𝐴 𝑥 0.20 = 26.92𝐴
•
C1. 4110-PPS050-M Sump Pump Milling Area 60 hp 480 V voltage
60𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑆𝑢𝑚𝑝 𝑃𝑢𝑚𝑝 𝑀𝑖𝑙𝑙𝑖𝑛𝑔 𝐴𝑟𝑒𝑎 →
= 53.84𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑆𝑢𝑚𝑝 𝑃𝑢𝑚𝑝 𝑀𝑖𝑙𝑙𝑖𝑛𝑔 𝐴𝑟𝑒𝑎 → 53.84𝐴 𝑥 1.25 = 67.3𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑆𝑢𝑚𝑝 𝑃𝑢𝑚𝑝 𝑀𝑖𝑙𝑙𝑖𝑛𝑔 𝐴𝑟𝑒𝑎 → 53.84𝐴 𝑥 0.20 = 10.8𝐴
•
C6. 4110-LPA101 Panel Board to Lighting System and Receptacles 100 kVA, 480
V.
100𝑘𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Panel Board to Lighting System →
= 120.28𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Panel Board to Lighting System → 120.28𝐴 𝑥 1.25 = 150.35𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Panel Board to Lighting System → 120.28𝐴 𝑥 0.20 = 24.056𝐴
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The circuit breakers considered for the above equipment will be of the ABB SACE Tmax T3
TMD125-250A circuit breaker.
Associated to the connection between cubicle 3145-MCL101 and cubicle 4110-SGL101, it
is contemplated in the drawing 21466447-D-4110-EL-DWG-20001, to have for cubicle 3145MCL101 a switch of (1600AF/AT) and for 4110-SGL101 output C1 a switch of
(2000AF/1600AT), implementing SACE Emax PR112-LSIG-E3H-A20.
To determine the setting to propose, we start from the rated current obtained in the power
flow being 943 A.
•
C1. 4110-SGL101, connecting 3145-MCL101 with 480V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 943𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 943𝐴 𝑥 1.25 = 1178.75𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 943𝐴 𝑥 0.20 = 188.6𝐴
For the connection between the 4110-SGL101 cubicle which has a switch (2000 AF/1600
AT) protecting the conductor connecting the 4110-MCL101 cubicle with switch (1600 AF/AT)
and a load flow through it of 800 A is obtained SACE Emax PR112-LSIG-E3H-A20
protections are implemented for both cubicles.
•
C2. 4110-SGL101, connecting 4110-MCL101 with 480 V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 800𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 800𝐴 𝑥 1.25 = 1000𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 800𝐴 𝑥 0.20 = 160𝐴
Finally, the connection associated with the 4110-SGL101 cubicle with (1600AF/800AT)
SACE Emax PR112-LSIG-E3H-A16 capacity, links to the 4110-ATL101 transfer panel and
from there terminates the connection to the 4125-MCL101 emergency motor control center,
the transfer panel has a switch (1200AF/800AT) SACE Emax PR112-LSIG-E3H-A12 and
the motor control center has a switch (800AF/600AT) SACE Emax PR112-LSIG-E2H-A8.
Under the load flow performed, a nominal current of 418 A is obtained as the basis for the
setting current.
•
C3. 4110-SGL101, connecting 4110-ATL101 and connecting to 4110-MCL101 with
480V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 418𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 418𝐴 𝑥 1.25 = 522.5𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 418𝐴 𝑥 0.20 = 83.6𝐴
Under the settings established in the routes corresponding to the Area 1 route A loads, the
current settings defined for the 2.5MVA 4110-XTR102 transformer with a voltage ratio of
22.9/0.48kV are presented below.
•
CB ABB SACE Emax PR121-E4H-A32. 4110-SGL101 2.5 MVA with voltage 480 V
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𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅102. 𝐿𝑜𝑤 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
2.5𝑀𝑉𝐴
= 3007𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅102. 𝐿𝑉 → 3007𝐴 𝑥 1.3 = 3909.142𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅102. 𝐿𝑉 → 3007𝐴 𝑥 0.20 = 601.41𝐴
•
Relay GET60. 4110-SGH101 2.5 MVA with voltage 22.900 V
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅102. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 63𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅102. 𝐻𝑉 → 63𝐴 𝑥 1.3 = 82𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅102. 𝐻𝑉 → 63𝐴 𝑥 0.20 = 12.61𝐴
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for route A and as shown in
figures Figure 12 to Figure 34, the behavior is adequate for three-phase and single-phase
faults and Table 7 below shows the general settings for the protections.
Table 7 Proposed protection adjustments Route A – Area 1
Tag
C25
4125VFD160A,
PPP160A Pump
Grinding
Thickener
125HP.
C3
3140CVB115M,
Conveyor Belt to
Scrubber
100HP.
C Feeder 3145MCL101
a
4110-SGL101
C1
Feeder
4110-SGL101 a
3145-MCL101
C28
4110COM020A,
Compressor
Plant Air 150HP.
C Feeder 4110MCL101
a
4110-SGL101
C2
Feeder
4110-SGL101 a
4141-MCL101
C1
4110PPS050M,
Sump
Pump
Adjust
Phase
[p.u/A]
Time Dial
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
L=0.7/175
I=10/2500
L= 1
I=0.015
L-T3
NL=T1
NL=0.64/112 NL=1
250TMD
160TMD 16NI=0.64/1600 NI=0.015
63-250 Hot
63 500 Hot
L=0.7/175
I=10/2500
L= 1
I=0.015
L-T3
NL=T1
NL=0.64/112 NL=1
250TMD
160TMD 16NI=0.64/1600 NI=0.015
63-250 Hot
63 500 Hot
L=1/1600
S=2.5/4000
I=off
L=1/2000
S=2/4000
I=off
L= 3
S=0.15
I=off
L= 3
S=0.2
I=off
L=0.7/175
I=10/2500
L= 1
I=0.015
L=1/1600
S=2.5/4000
I=off
L=1/1600
S=2/4000
I=off
L= 3
S=0.10
I=off
L= 3
S=0.15
I=off
L=0.7/175
I=10/2500
L= 1
I=0.015
L-Curve
S-I t off
G=0.8/1280
G=0.1
G=I t-G off
L-Curve
S-I t off
G=0.7/1400
G=0.1
G=I t-G off
L-T3
NL=T1
NL=0.64/112 NL=1
250TMD
160TMD 16NI=0.64/1600 NI=0.015
63-250 Hot
63 500 Hot
L-Curve
S-I t off
G=1/1600
G=0.1
G=I t-G off
L-Curve
S-I t off
G=1/1600
G=0.1
G=I t-G off
L-T3
NL=T1
NL=0.64/112 NL=1
250TMD
160TMD 16NI=0.64/1600 NI=0.015
63-250 Hot
63 500 Hot
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Adjust
Phase
[p.u/A]
Tag
Milling
60HP.
Time Dial
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
Area
C6.
4110LPA101 Panel
Board
to
L-T3
NL=T1
L=0.7/175
L= 1
NL=0.64/112 NL=1
Lighting System
250TMD
160TMD 16I=10/2500
I=0.015
NI=0.64/1600 NI=0.015
and
63-250 Hot
63 500 Hot
Receptacles
100kVA
C Feeder 4125- L=0.75/600
L= 3
L-Curve
MCL101
a S=4/3200
S=0.15
G=0.8/640
G=0.1
G=I t-G on
S-I t off
4110-ATL101
I=off
I=off
C1
Feeder L=0.75/600
L= 3
L-Curve
4110-ATL101 a S=4/3200
S=0.15
G=0.8/640
G=0.1
G=I t-G on
S-I t off
4125-MCL101
I=off
I=off
CB
Feeder L=1/1200
L= 3
L-Curve
4110-ATL101 a S=3/3600
S=0.2
G=0.6/720
G=0.15 G=I t-G on
S-I t off
4110-SGL101
I=off
I=off
C3
Feeder L=1/1600
L= 3
L-Curve
4110-SGL101 a S=3/4800
S=0.2
G=0.45/704 G=0.15 G=I t-G on
S-I t off
4110-ATL101
I=off
I=off
CB
4110L=1/3200
L= 3
SGL101
L= Curve
S=2.5/8000
S=0.3
G=0.5/1600 G= 0.4
G=I t-G off
XTR101
S= I t off
I=12/38400
I=0.04
2.5MVA.
Relay GE-T60 51:0.82/82
51:0.40
51: IEC
4110-SGH101
50E1:2/200
50E1:0.5
Curve B
50N:0.1/10 50N:0.02 50N:Definite
2.5MVA*
50E2:7.3/730 50E2:0.15 50:Definite
*Note: The 100/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for the
ground function setting, the setting would correspond to (1p.u/1A).
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Figure 12 Three-Phase Fault. Motor 4125-PPP160A
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Figure 13 Single-Phase to Ground Fault- Phase plot. Motor 4125-PPP160A.
Figure 14 Single-Phase to Ground Fault-Earth plot. Motor 4125-PPP160A
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Figure 15 Three-Phase Fault. Motor 3140-CVB115M
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Figure 16 Single-Phase to Ground Fault-Phase Plot. Motor 3140-CVB115M
Figure 17 Single-Phase to Ground Fault-Earth Plot. Motor 3140-CVB115M
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Figure 18 Three-Phase Fault. Motor 4110-COM020A
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Figure 19 Single-Phase to Ground Fault-Phase plot. Motor 4110-COM020A
Figure 20 Single-Phase to Ground Fault-Earth plot. Motor 4110-COM020A
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Figure 21 Three-Phase Fault. Motor 4110-PPS050M
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Figure 22 Single-Phase to Ground Fault-Phase plot. Motor 4110-PPS050M
Figure 23 Single-Phase to Ground Fault-Earth plot. Motor 4110-PPS050M
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Figure 24 Three-Phase Fault. Bus 3145-MCL101
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Figure 25 Single-Phase to Ground Fault-Phase plot. Bus 3145-MCL101
Figure 26 Single-Phase to Ground Fault-Earth plot. Bus 3145-MCL101
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Figure 27 Three-Phase Fault. Bus 4110-MCL101
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Figure 28 Single-Phase to Ground Fault-Phase plot. Bus 4110-MCL101
Figure 29 Single-Phase to Ground Fault-Earth plot. Bus 4110-MCL101
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Figure 30 Three-Phase Fault. Bus 4125-MCL101
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Figure 31 Single-Phase to Ground Fault-Phase plot. Bus 4125-MCL101
Figure 32 Single-Phase to Ground Fault-Earth plot. Bus 4125-MCL101
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Figure 33 Three-Phase Fault. Bus 4110-ATL101
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Figure 34 Single-Phase to Ground Fault-Phase plot. Bus 4110-ATL101
Figure 35 Single-Phase to Ground Fault-Earth plot. Bus 4110-ATL101
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4.1.1.2
Protection Coordination Route "B"- Area 1
The coordination path B associated to transformer 4110-XTR101 with 10-12 MVA power
and two coordination subroutes are established, the first one energizes the 4000 hp motors
and the drive corresponding to them defined for the Ball Mills, Scrubber and the second one
allows to energize the 250 hp motors associated to the cyclone pumps.
The equipment is being protected by General Electric (GE) protection relays and the primary
starting currents for the phase and ground overcurrent functions are established.
4110-VFD100A Synchronous Transfer System:
•
4110-MIL125A Ball Mill, and 3145-MIL120 Scrubber of 4000 hp with 4.16 kV
4000𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 →
= 414.138𝐴
4.16𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 414.138𝐴 𝑥 1.25 = 517.67𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 414.138𝐴 𝑥 0.20 = 82.83𝐴
•
4110-VFD100 Variable Frequency Drive of 4000 hp 4.16 kV voltage
265𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Variable Frequency Drive →
= 414.138𝐴
4.16𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Variable Frequency Drive → 414.138𝐴 𝑥 1.25 = 517.67𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Variable Frequency Drive → 414.138𝐴 𝑥 0.20 = 82.83𝐴
As shown in the drawing 21466447-D-4110-EL-DWG-20005, a ball mill and the scrubber
start-up operation are contemplated, which allows the 4110-VFD100 frequency inverter to
initiate the controlled start-up and after that the direct connection is established in its
operation.
The 4110-VFD100A synchronous transfer system is fed through a conductor coming from
the 4110-SGM101 medium voltage switchgear, and under the load flow results an operating
current of 842 A is contemplated allowing the protection start-up to be established.
•
C1. Feeder 4110-SGM101 and 4110-VFD101
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 842𝐴
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 842𝐴 𝑥 1.25 = 1052.5𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 842𝐴 𝑥 0.20 = 168.4𝐴
The motors associated with the 250 hp cyclone feed pump is connected to the 4110SGM101 medium voltage switchgear and the 4110-XTR101 transformer with 12 MVA power
is connected to the ONAF cooling second stage.
•
4110-PPP130A Pump Feed Cyclone of 250 hp with 4.16 kV
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𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Pump Feed Cyclone →
250𝐻𝑃 𝑥 0.746𝑘𝑊
= 25.88𝐴
4.16𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Pump Feed Cyclone → 25.88𝐴 𝑥 1.25 = 32.35𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Pump Feed Cyclone → 25.88𝐴 𝑥 0.20 = 5.18𝐴
•
4110-SGM101 Transformer XTR101 of 12 MVA with 4.16 kV
12𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Transformer 4110 − XTR101 →
= 1665.43𝐴
4.16𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Transformer 4110 − XTR101 → 1665.43𝐴 𝑥 1.3 = 2165.06𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Transformer 4110 − XTR101 → 1665.43𝐴 𝑥 0.20 = 333.08𝐴
•
4110-SGH101 Transformer XTR101 of 12 MVA with 22.9 kV
12𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Transformer 4110 − XTR101 →
= 302.542𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Transformer 4110 − XTR101 → 302.542𝐴 𝑥 1.3 = 393.304𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Transformer 4110 − XTR101 → 302.542𝐴 𝑥 0.20 = 60.508𝐴
Having established the above, the values allowed by the circuit breakers and relays are
taken to determine the setting of the protection functions established for route B and as
shown in Figure 36 to Figure 46, the behavior is adequate for three-phase and single-phase
faults and Table 8 below shows the general settings for the protections.
Table 8 Proposed protection adjustments Route B - Area 1
Tag
Relay GE 869
4110-MIL125
Ball Mill 4000HP.
Relay GE 869
4110-VFD100
Variable
Frequency Drive
4000HP.
Relay
Feeder
GE-845
4110SGM101
to
4110-VFD100A
Relay GE 845
4110-PPP130A
Pump
Feed
Cyclone 250HP.
Relay
GE-845
4110-SGM101
4110-XTR101
12MVA.LV*
Adjust Phase Time Dial
[p.u/A]
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
51:0.43/516
51:0.01
51: IEC
Curve A
50N:0.01/12
50N:0.02 50N:Definite
51:0.43/516
51:0.01
51: IEC
Curve A
50N:0.01/12
50N:0.02 50N:Definite
51:0.35/1050
50:12/7200
51:0.07
50E1:0.15
51: IEC
Curve A 50N:0.01/30
50:Definite
50N:0.12 50N:Definite
51:0.33/33
51:0.01
51: IEC
Curve A
51N:0.05/5
51:0.866/2165 51:0.08
51: IEC
Curve A
50N:0.012/30 50N:0.25 50N:Definite
50N:0.01
51N:IEC
Curve A
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Tag
Adjust Phase Time Dial
[p.u/A]
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
Relay GE-T60
4110-SGH101
51: IEC
51:0.78/390
51:0.12
50N:0.02/10 50N:0.02 50N:Definite
4110-XTR101
Curve A
12MVA.HV**
*Note: The 2500/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for
the ground function setting, the setting would correspond to (3p.u/30A).
**Note: The 500/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for
the ground function setting, the setting would correspond to (1p.u/10A).
Figure 36 Three-Phase Fault. Motor 4110-MIL125
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Figure 37 Single-Phase to Ground Fault-Phase Plot. Motor 4110-MIL125
Figure 38 Single-Phase to Ground Fault-Earth Plot. Motor 4110-MIL125
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Figure 39 Three-Phase Fault. Bus 4110-VFD100A
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Figure 40 Single-Phase to Ground Fault-Phase plot. Bus 4110-VFD100A
Figure 41 Single-Phase to Ground Fault-Earth plot. Bus 4110-VFD100A
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Figure 42 Three-Phase Fault. Motor 4110-PPP130
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Figure 43 Single-Phase to Ground Fault-Phase plot. Motor 4110-PPP130
Figure 44 Single-Phase to Ground Fault-Earth plot. Motor 4110-PPP130
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Figure 45 Three-Phase Fault. Bus 4110-SGM101
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Figure 46 Single-Phase to Ground Fault-Phase plot. Bus 4110-SGM101
Figure 47 Single-Phase to Ground Fault-Earth plot. Bus 4110-SGM101
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4.1.1.3 Differential Protection Transformer 4110-XTR101 - Area 1
Associated with the protection relay, the primary winding with voltage 22.9 kV with current
transformer 500/5 and for the secondary winding with voltage 4.16 kV a current transformer
2500/5 is used.
Magnitude compensation:
CTs should be matched to the current rating of each transformer winding, so that normal
current through the power transformer is equal on the secondary side of the CT on different
windings.
1. Calculate the rated current (Irated) for each winding
12𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 4110𝑋𝑇𝑅101. 𝐻𝑉 →
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 4110𝑋𝑇𝑅101. 𝑀𝑉 →
22.9𝑘𝑉 𝑥 √3
12𝑀𝑉𝐴
4.16𝑘𝑉 𝑥 √3
= 302.54𝐴
= 1665.43𝐴
2. Calculate the CT margin (Imargin) for each winding:
𝐼𝑚𝑎𝑟𝑔𝑖𝑛 [𝑊1] 4110𝑋𝑇𝑅101. 𝐻𝑉 →
500 𝐴
= 1.65
302.54 𝐴
𝐼𝑚𝑎𝑟𝑔𝑖𝑛 [𝑊2] 4110𝑋𝑇𝑅101. 𝑀𝑉 →
2500 𝐴
= 1.50
1664.43 𝐴
3. Choose the winding with the lowest CT margin
𝑆𝑖𝑛𝑐𝑒 𝐼𝑚𝑎𝑟𝑔𝑖𝑛[2] < 𝐼𝑚𝑎𝑟𝑔𝑖𝑛[1], 𝑡ℎ𝑒 𝑟𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒 𝑤𝑖𝑛𝑑𝑖𝑛𝑔 𝑤𝑟𝑒𝑓 𝑖𝑠 𝑤𝑖𝑛𝑑𝑖𝑛𝑔 2.
Magnitude compensation factors (M) are the scaling values by which each winding current
is multiplied to refer it to the reference winding. The T60 calculates magnitude compensation
factors for each winding as follows:
𝑀[𝑊1] 4110𝑋𝑇𝑅101. 𝐻𝑉 →
500 𝐴 𝑥 22.9 𝑘𝑉
= 1.101
2500 𝐴 𝑥 4.16 𝑘𝑉
𝑀[𝑊2] 4110𝑋𝑇𝑅101. 𝑀𝑉 →
2500 𝐴 𝑥 4.16 𝑘𝑉
= 1.000
2500 𝐴 𝑥 4.16 𝑘𝑉
Percent Differential Pickup — This setting defines the minimum differential current
required for operation. It is chosen based on the amount of differential current that can be
seen under normal operating conditions. Two factors can create differential current during
normal transformer operation: errors due to CT inaccuracies where 5% is considered and
current variation due to tap changer operation associating ±2x2.5% as shown in Table 9.
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Table 9 Current variation due to tap changer operation Transformer 4110-XTR101
Carga
Devanado Primario (HV) Devanado Secundario (MV)
12MVA Voltaje (V) Corriente (A) Voltaje (V)
Corriente (A)
Tap -2
21755
318.464869
4160
1665.43347
Tap 0
22900
302.541626
4160
1665.43347
Tap +2
24045
288.134882
4160
1665.43347
The starting current is defined as a function of the differential current associated with the
operation, obtaining PICKUP: 0.25 p.u.
Percent Differential Break 1 — This setting needs to be set above the maximum load
current and can be moved to the AC current under which all the CTs are guaranteed to
transform without saturation, so for Breakpoint 1 a value on the restriction axis of 1.03p.u.
Percent Differential Slope 1 — Defines the percentage bias for the restraining currents
below the lower breakpoint (BREAK 1). This setting determines the sensitivity of the relay
for low current internal faults. defining for Slope 1 a value of 20%.
Percent Differential Break 2 — Defines the higher breakpoint of the dual-slope operating
characteristic. Set BREAK 2 setting below the fault current that is likely to saturate the
weakest CT feeding the relay. The adjustment starts from the short-circuit current allowed
by the 11% short-circuit impedance of the transformer and a value of 4.7 p.u. is obtained for
Breakpoint 2.
Percent Differential Slope 2 — Defines the percentage bias for the restraining currents
above the higher breakpoint (BREAK 2). This setting affects stability of the relay for heavy
external faults. This requirement can be considerably relaxed in favor of sensitivity and
speed of operation as the relay detects CT saturation and upon detection applies the
directional principle to prevent maloperation. When adjusting this setting, keep in mind that
the restraining signal is created as the maximum of all the input currents. Therefore, a value
of 50% is typically defined for the Slope 2 associated with the transformer's nominal power
ratings.
With the adjusts defined, the characteristic shown in the Figure 48 is established.
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Figure 48 Percent differential operating characteristic. Transformer 4110-XTR101
4.1.2
AREA 2
4.1.2.1 Protection Coordination Route "A"- Area 2
With the criteria defined above, the highest power loads corresponding to the Low voltage
Motor Control Center 4131-MCL101 are taken, and the following reference current values
are obtained for the adjustment proposal:
•
C17. 4131-VFD115A, PPP155A CIL Residue Pump of 250 hp with 480 V voltage
250𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 →
= 224.32𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 224.32𝐴 𝑥 1.25 = 280.41𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 224.32𝐴 𝑥 0.20 = 44.9𝐴
•
C24. 4131-COM120A CIL Compressor of 265 hp 480 V voltage
265𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 →
= 237.8𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 237.8𝐴 𝑥 1.25 = 297.23𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 237.8𝐴 𝑥 0.20 = 47.6𝐴
The circuit breakers for the above equipment will be of the ABB brand and being similar
power ratings, the same capacity is considered for the circuit breaker (600AF/500AT) as
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shown in drawing 21466447-D-4131-EL-DWG-20001-1_RL and drawing 21466447-D4131-EL-DWG-20002-1_RL and for the simulations corresponding to verify the
coordination, a SACE Tmax T5 PR223 630A circuit breaker is used.
The 4131-MCL-101 board is connected through a Bus Duct with 2500 A capacity to the LV
SWITCHGEAR 4131-SGL101 cubicle and is protected by a capacity switch
(2500AF/2000AT) for the input and output; therefore, the same setting is available in both
SACE PR112-LSIG-E3H-A25 circuit breakers.
•
C1. 4131-SGL101, Bus Duct 2500A “BSL101”, connecting 4131-MCL101 with 480
V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐵𝑢𝑠 𝐷𝑢𝑐𝑡 → 1000𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐵𝑢𝑠 𝐷𝑢𝑐𝑡 → 1000𝐴 𝑥 1.25 = 1250𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐵𝑢𝑠 𝐷𝑢𝑐𝑡 → 1000𝐴 𝑥 0.20 = 200𝐴
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for route A and as shown in
figures Figure 49 to Figure 56, the behavior is adequate for three-phase and single-phase
faults and Table 10 shows the general settings for the protections.
Table 10 Proposed protective adjustments route A - Area 2
Tag
Adjust
Phase
[p.u/A]
Time
Dial
Phase
C17
4131-VFD115A, L=0.48/302.4 L= 3
PPP155A Cil Residue S= off
S=off
Pump de 250HP.
I= 5.5/3465
I= 0.01
L=0.48/302.4 L= 3
C24 4131-COM120A Cil
S= off
S=off
Compresor de 265HP.
I= 5.5/3465
I= 0.01
C1 4131-MCL101, Bus
L=0.5/1250
Duct 2500A “BSL101.
S= 2/5000
C1 4131-SGL101, Bus
I= off
Duct 2500A “BSL101.
L= 3
S=0.15
I= off
Phase
Curve
L-Curve
PR222/3
630
S- off
L-Curve
PR222/3
630
S-off
L-Curve
S-I t off
Adjust
Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
G=0.2/126
G= 0.1
G=I t-G
on
G=0.2/126
G= 0.1
G=I t-G
on
G=0.2/500
G=
0.15
G=I t-G
on
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Figure 49 Three-Phase Fault. Motor 4131-PPP155A
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Figure 50 Single-Phase to Ground Fault-Phase Plot. Motor 4131-PPP155A
Figure 51 Single-Phase to Ground Fault-Earth Plot. Motor 4131-PPP155A
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Figure 52 Three-Phase Fault. Motor 4131-COM120A
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Figure 53 Single-Phase to Ground Fault-Phase Plot. Motor 4131-COM120A
Figure 54 Single-Phase to Ground Fault-Earth Plot. Motor 4131-COM120A
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Figure 55 Three-Phase Fault. Bus 4131-MCL101
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Figure 56 Single-Phase to Ground Fault-Phase plot. Bus 4131-MCL101
Figure 57 Single-Phase to Ground Fault-Earth plot. Bus 4131-MCL101
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4.1.2.2 Protection Coordination Route “B”- Area 2
With the criteria defined above, the highest power loads corresponding to the Low voltage
Motor Control Center Critical Loads 4131-MCL102 are taken, and the following reference
current values are obtained for the adjustment proposal:
•
C1. 4131-AGI120M-P CIL Agitator 75 hp with voltage 480 V
75𝐻𝑃 𝑥 746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐶𝑖𝑙 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 →
= 67.3𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐶𝑖𝑙 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 → 67.3𝐴 𝑥 1.25 = 84.12𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐶𝑖𝑙 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 → 67.3𝐴 𝑥 0.20 = 13.46𝐴
•
C10. 4131-DPA101 Distribution Panel Board 75 kVA with voltage 480 V
75𝑘𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐷𝑃𝐴 →
= 90.21𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐷𝑃𝐴 → 90.21𝐴 𝑥 1.25 = 112.76𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐷𝑃𝐴 → 90.21𝐴 𝑥 0.20 = 18.04𝐴
•
C20. 4131-CHN005 Tower Crane 200 hp with voltage 480 V
265𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑇𝑜𝑤𝑒𝑟 𝐶𝑟𝑎𝑛𝑒 →
= 179.5𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑇𝑜𝑤𝑒𝑟 𝐶𝑟𝑎𝑛𝑒 → 179.5𝐴 𝑥 1.25 = 224.32𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑇𝑜𝑤𝑒𝑟 𝐶𝑟𝑒𝑛𝑒 → 179.5𝐴 𝑥 0.20 = 35.9𝐴
The circuit breakers for the above equipment will be of the ABB brand and being similar
power ratings, the same capacity is considered for the circuit breaker (C1: 250AF/125AT;
C10: 250AF/150AT; C20: 400AF/300AT) as shown in drawing 21466447-D-4131-EL-DWG20003-1_RL and for the simulations corresponding to verify the coordination the following
families are taken C1: SACE Tmax T3 TMD125-250A; C10: SACE Tmax T4 PR222; C20:
SACE Tmax T5 TMG 325-500A).
The 4131-MCL-102 panel is connected through a 600 kcmil conductor to the Transfer Panel
4131-ATL101 and is protected by a capacity switch (2000AF/1600AT) for the input and
output; it is preceded by an automatic transfer with the same current capacity to be
established at the connection of the 4131-ATL101 cubicle with the 4131-SGL101 cubicle
and these switches will be SACE PR112-LSIG-E3H-A20.
The critical loads defined establish a rated current of 1000 Amperes, under the simulations
performed and applying the generalized criteria for the protection functions is obtained:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐶𝑎𝑏𝑙𝑒 4131𝐴𝑇𝐿101 − 𝑃 𝑦 𝐶𝑎𝑏𝑙𝑒 4131𝑀𝐶𝐿102 − 𝑃 → 1000𝐴 𝑥 1.25
= 1250𝐴
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𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐶𝑎𝑏𝑙𝑒 4131𝐴𝑇𝐿101 − 𝑃 𝑦 𝐶𝑎𝑏𝑙𝑒 4131𝑀𝐶𝐿102 − 𝑃 → 1000𝐴 𝑥 0.20
= 200𝐴
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for route B where selectivity is
guaranteed, as shown in Figure 58 to Figure 68, the behavior is adequate for three-phase
and single-phase faults and Table 11 below shows the general settings for the protections.
Table 11 Proposed protective adjustments route A – Area 2
Tag
Adjust Phase
[p.u/A]
Time
Dial
Phase
Phase
Curve
Adjust
Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
NL= 1
NL= T1
160
TMD 1663 500
Hot
G= 0.1
NI=0.01
G=I t-G
on
C1 4131-AGI120 L=1/125
Cil Agitador 75HP. I= 10/1250
L= 1
I= 0.015
L= T3 250
TMD 63- NL=1/125
250 Hot
L=0.8/128
C10 4131-DPA101
S= off
75kVA.
I= 5.5/880
L= 3
S=off
I= 0.01
L=Curve
PR222/3
S-off
C20 4131-CNH005
T=0.7/280
Tower
Crane
M= 3/1200
200HP.
T=
S5
T= 1
NL=1/280
400-630
M=0.015
NI= 1200
Hot
NL= T1
160
NL= 0.1
TMD 16NI=0.015
63 500
Hot
L= 3
S= 0.10
L= Curve
S= I t off
G=0.6/960
G= 0.10
G=I t-G
on
L= 3
S= 0.15
L= Curve
S= I t off
G=0.6/1200 G= 0.15
G=I t-G
on
L= 0.75/1200
C1 4131-ATL101 a
S= 1.5/2400
4131-MCL102
I= off
L= 0.75/1500
C2 4131-SGL101 a
S= 1.5/3000
4131-ATL101
I= off
G=0.2/32
NI=0.5/440
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Figure 58 Three-Phase Fault. Motor 4131-AGI120
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Figure 59 Single-Phase to Ground Fault-Phase plot. Motor 4131-AGI120
Figure 60 Single-Phase to Ground Fault-Earth plot. Motor 4131-AGI120
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Figure 61 Three-Phase Fault. Bus 4131-MCL102
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Figure 62 Single-Phase to Ground Fault-Phase plot. Bus 4131-MCL102
Figure 63 Single-Phase to Ground Fault-Earth plot. Bus 4131-MCL102
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Figure 64 Three-Phase Fault. Tower 4131-CNH005
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Figure 65 Single-Phase to Ground Fault-Phase plot. Tower 4131-CNH005
Figure 66 Single-Phase to Ground Fault-Earth plot. Tower 4131-CNH005
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Figure 67 Three-Phase Fault. Load 4131-XFL101
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Figure 68 Single-Phase to Ground Fault-Phase plot. Load 4131-XFL101
Figure 69 Single-Phase to Ground Fault-Earth plot. Load 4131-XFL101
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4.1.2.3 Protection Coordination Transformer XTR101 - Area 2
Under the settings established in the routes corresponding to the Area 2 loads, the current
settings defined for the 2.5MVA XTR101 transformer with a voltage ratio of 22.9/0.48kV are
presented below, the values allowed by the protections are taken and in Table 12 the
generalized settings are presented and then the corresponding verifications are presented
from Figure 70 to Figure 77.
•
CB ABB SACE Emax PR121-E4H-40. 4131-SGL101 2.5 MVA with voltage 480 V
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅101. 𝐿𝑜𝑤 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 3007𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 1.3 = 3909𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 0.20 = 601.4𝐴
•
Relay GE750. 4131-SGH101 2.5 MVA with voltage 22.900 V
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅101. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
2.5𝑀𝑉𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 1.3 = 82𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 0.20 = 12.6𝐴
= 63𝐴
Table 12 Proposed protective adjustments Transformer 4131-XTR101 – Area 2
Adjust
Time
Phase
Dial
[p.u/A]
Phase
L=0.975/3900 L= 3
CB
4131-SGL101
S= 2/8000
S=0.3
XTR101 2.5MVA.
I= off
I= off
Tag
RelayGE750
413151: 0.41/82
SGH101 2.5MVA.*
51:0.60
Phase
Curve
L= Curve
S= Const
51: IEC
Curve B
Adjust
Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
G=0.4/1600 G= 0.4
G= G-I2t
51N:
0.06/12
51N:
0.05
51N: IEC
Curve A
*Note: The 200/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for the
ground function setting, the setting would correspond to (1.2p.u/10A).
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Figure 70 Three-Phase Fault. Bus 4131 SGL101
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Figure 71 Single-Phase to Ground Fault-Phase plot. Bus 4131 SGL101
Figure 72 Single-Phase to Ground Fault-Earth plot. Bus 4131 SGL101
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Figure 73 Three-Phase Fault at 50% of the line 4131 SGL101 – 4131 MCL101
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Figure 74 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 MCL101 Phase
plot
Figure 75 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 MCL101 Earth plot
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Figure 76 Three-Phase Fault at 50% of the line 4131 SGL101 – 4131 ATL101
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Figure 77 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 ATL101 Phase
plot
Figure 78 Single-Phase to Ground Fault at 50% of the line 4131 SGL101 – 4131 ATL101 Earth plot
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4.1.3
AREA 3
4.1.3.1 Protection Coordination Route “A”- Area 3
With the criteria defined above, the highest power loads corresponding to the Low Voltage
Motor Control Center 4132-MCL101 are taken, obtaining the following reference current
values for the adjustment proposal:
•
C6. 4132-VFD160A, PPP160A Filtrate CIL Residue Pump of 100 hp with 480 V
voltage
100𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐹𝑖𝑙𝑡𝑟𝑎𝑡𝑒 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 →
= 89.73𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐹𝑖𝑙𝑡𝑟𝑎𝑡𝑒 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 89.73𝐴 𝑥 1.25 = 112.16𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐹𝑖𝑙𝑡𝑟𝑎𝑡𝑒 𝐶𝑖𝑙 𝑅𝑒𝑠𝑖𝑑𝑢𝑒 𝑃𝑢𝑚𝑝 → 89.73𝐴 𝑥 0.20 = 17.95𝐴
•
C33. 4132-COM020A Compressor of 250 hp with 480 V voltage
250𝐻𝑃 𝑥 0.746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐶𝑜𝑚𝑝𝑟𝑒𝑠𝑠𝑜𝑟 →
= 224.32𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐶𝑜𝑚𝑝𝑟𝑒𝑠𝑠𝑜𝑟 → 224.32𝐴 𝑥 1.25 = 280.41𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐶𝑜𝑚𝑝𝑟𝑒𝑠𝑠𝑜𝑟 → 224.32𝐴 𝑥 0.20 = 44.86𝐴
The circuit breakers for the above equipment will be ABB brand, defining for C6 a SACE
Tmax T5 TMG 325-500A circuit breaker based on the information presented in drawing
21466447-D-4132-EL-DWG-20002 and for C33 a SACE Tmax T5 PR223 630 A circuit
breaker is defined based on the information (400AF/250AT) according to drawing 21466447D-4132-EL-DWG-20004.
The 4132-MCL-101 panel is connected through a 2500 A rated conductor to the LV
SWITCHGEAR 4132-SGL101 cubicle and both the panel and cubicle are protected by
(2000A) rated circuit breakers for the input and output cable; therefore, the same setting is
available on both SACE Emax PR112-LSIG-E3H-A20 circuit breakers, and they will be
timed.
•
C1. 4132-SGL101, connecting to 4132-MCL101 with 480 V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 1235𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 1235𝐴 𝑥 1.25 = 15440𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 1235𝐴 𝑥 0.20 = 247𝐴
Taking the current values established for the loads to be fed by the transformer 4132XTR101 of 2.5 MVA and voltage 22.9/0.48 kV, taking for the 480V level a setting value of
3200A as shown in drawing 21466447-D-4132-EL-DWG-20001. The general settings for the
transformer are defined below.
•
CB ABB SACE Emax PR121-E4H-40. 4132-SGL101 XTR101 of 2.5 MVA with 480
V voltage
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𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅101. 𝐿𝑜𝑤 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
2.5𝑀𝑉𝐴
= 3007𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 1.3 = 3909𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 0.20 = 601.4𝐴
•
Relay GET60. 4132-SGH101 of 2.5 MVA with 22.900 V voltage
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅101. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 63𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 1.3 = 82𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 0.20 = 12.6𝐴
With the current starting of the defined relays, the values allowed by the equipment are
taken, determining the adjustment of the protection functions established for the defined
coordination path, and the operation against three-phase and single-phase faults are shown
in the from Figure 79 to Figure 92 and Table 13 shows the general settings for the
protections.
Table 13 Proposed protective adjustments Route A – Area 3
Tag
C6.
4132VFD160A,
PPP160A
Filtrate
Cil
Residue Pump
de 100HP
C33.4132COM020A
Compresor de
250HP
Adjust Phase
[p.u/A]
Time Dial
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time
Dial
Earth
Earth
Curve
L=0.7/224
I= 5/1600
L=1
I=0.015
L-T5 400630 TMG G=0.7/224
320-500
NI=5/1600
Hot
G-T1160
G= 0.1
TMD 16NI=0.015 63 500
Hot
L=0.48/302.4
S= off
I= 5.5/3465
L= 3
S=off
I= 0.01
L-Curve
PR222/3
630
S-off
G= 0.1
NI=0.01
G=0.2/126
NI=0.5/1732
G=I t-G
on
NI=
Definit
L=0.75/1500
L= 3
C1
4132L-Curve
G=I t-G
S=2.5/5000
S=0.10
G=0.7/1400
G= 0.1
MCL101
S-I t off
off
I= off
I= off
L=0.75/1500
L= 3
C1
4132L-Curve
G=I t-G
S=2.5/5000
S=0.10
G=0.7/1400
G= 0.1
SGL101
S-I t off
off
I= off
I= off
L=0.8/3200
L= 3
CB.4132L-Curve
S=2/8000
S=0.20
G=0.4/1600
G= 0.2
G=Const
XTR101_LV
S-const
I= off
I= off
51=0.1/80
51=0.4
51=IEC
CB.4132E1.50=0.25/200 E1.50=0.36 CurveB
50N=0.015/12 50N=0.05 Definite
XTR101_HV*
E2.50=2.5/2000 E2.50=0.05 50=Definite
*Note: The 800/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for the
ground function setting, the setting would correspond to (1.2p.u/12A). Two instantaneous stages
associated with the 22.9kV side are also defined to ensure coordinated operation in the event of faults
downstream of the transformer and to clear faults in the high voltage winding of the transformer.
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Figure 79 Three-Phase Fault. Motor 4132-PPP160A
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Figure 80 Single-Phase to Ground Fault-Phase plot. Motor 4132-PPP160A
Figure 81 Single-Phase to Ground Fault-Earth plot. Motor 4132-PPP160A
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Figure 82 Three-Phase Fault. Motor 4132-COM020A
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Figure 83 Single-Phase to Ground Fault Phase plot. Motor 4132-COM020A
Figure 84 Single-Phase to Ground Fault Earth plot. Motor 4132-COM020A
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Figure 85 Three-Phase Fault. Bus 4132-MCL101
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Figure 86 Single-Phase to Ground Fault Phase plot. Bus 4132-MCL101
Figure 87 Single-Phase to Ground Fault Earth plot. Bus 4132-MCL101
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Figure 88 Three-Phase Fault. Bus 4132-SGL101 (LV XTR101)
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Figure 89 Single-Phase to Ground Fault Phase plot. Bus 4132-SGL101 (LV XTR101)
Figure 90 Single-Phase to Ground Fault Earth plot. Bus 4132-SGL101 (LV XTR101)
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Figure 91 Three-Phase Fault. Internal Bus HV 4132 XTR101
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Figure 92 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR101
Figure 93 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR101
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4.1.3.2 Protection Coordination Route “B”- Area 3
Taking the highest power loads corresponding to the Low Voltage Motor Control Center
4123-MCL102 and the Emergency Motor Control Center, the following reference current
values for the proposed adjustment are obtained
4132-MCL102
•
C5. 4132-HYS145 Hydraulic Unit Filter 200 hp with 480 V voltage
200𝐻𝑃 𝑥 746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 Hydraulic Unit Filter →
= 179.5𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 Hydraulic Unit Filter → 179.5𝐴 𝑥 1.25 = 224.325𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 Hydraulic Unit Filter → 179.5𝐴 𝑥 0.20 = 35.892𝐴
4132-MCL103
•
C3. 4132-AGI115-M Filter Feed Tank Agitator 100 hp with 480 V voltage
100𝐻𝑃 𝑥 746𝑘𝑊
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐹𝑖𝑙𝑡𝑒𝑟 𝐹𝑒𝑒𝑑 𝑇𝑎𝑛𝑘 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 →
= 89.73𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝐹𝑖𝑙𝑡𝑒𝑟 𝐹𝑒𝑒𝑑 𝑇𝑎𝑛𝑘 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 → 89.73 𝑥 1.25 = 112.16𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝐹𝑖𝑙𝑡𝑒𝑟 𝐹𝑒𝑒𝑑 𝑇𝑎𝑛𝑘 𝐴𝑔𝑖𝑡𝑎𝑑𝑜𝑟 → 89.73𝐴 𝑥 0.20 = 17.95𝐴
The circuit breakers for the above equipment will be ABB brand and are considered for the
circuit breaker (C5: 800AF/600AT as shown in drawing 21466447-D-4132-EL-DWG-20005,
C20: 400A as shown in drawing 21466447-D-4132-EL-DWG-20007) and for the simulations
corresponding to verify the coordination the following families are taken C5: SACE Tmax T5
TMG325-500A, C3: SACE Tmax T5 TMG 325-500A).
The board 4123-MCL-102 is connected through a conductor to the Distribution Switchgear
4132-SGL102 protected by a capacity switch (2000 A) as shown in the drawing 21466447D-4132-EL-DWG-20001-1, both switches will be SACE Emax PR112-LSIG-E3H-A20 and
corresponding to the load flow analysis a current of 917 A is given taking it as a reference
for the analysis.
•
C1. 4132-SGL101, connecting to 4132-MCL101 with 480 V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 917𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 917𝐴 𝑥 1.25 = 1146.3𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 917𝐴 𝑥 0.20 = 183.4𝐴
The transfer panel 4132-ATL101 is connected through a conductor from the Distribution
Switchgear 4132-SGL102, from this connection, the Emergency Motor Control Center 4132MCL103 is energized and protected by circuit breakers (1200 A) as shown in drawing
21466447-D-4132-EL-DWG-20001-1 and drawing 21466447-D-4132-EL-DWG-20007. The
transfer panel 4132-ATL101 through an automatic transfer connects to the backup generator
4132-EG101. Performing the load flow simulations, a current of approximately 723 A is
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obtained, being the reference for the adjustment of the SACE PR112-LSIG-E3H-A12
protections.
•
C1. 4132-ATL101, connecting to 4132-MCL103 with voltage 480 V
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 723𝐴 𝐿𝑜𝑎𝑑 𝐹𝑙𝑜𝑤 𝑟𝑒𝑠𝑢𝑙𝑡𝑠
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 723𝐴 𝑥 1.25 = 903.75𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 723𝐴 𝑥 0.20 = 144.6𝐴
Based on the currents determined for the feeders, the power transformer 4132-XTR102 with
a capacity of 2.5 MVA and a voltage of 22.9/0.48 kV feeding Area 3 is presented.
•
CB ABB SACE Emax PR121-E4H-40. 4132-SGL102 2.5MVA with 480V voltage
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅102. 𝐿𝑜𝑤 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 3007𝐴
480𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 1.3 = 3909𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐿𝑉 → 3007𝐴 𝑥 0.20 = 601.4𝐴
•
Relay GET60. 4132-SGH101 2.5 MVA with 22.900 V voltage
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅102. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 63𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 1.3 = 82𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅101. 𝐻𝑉 → 63𝐴 𝑥 0.20 = 12.6
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for route B where selectivity is
guaranteed, as shown in Figure 94 to Figure 113, the behavior is adequate for three-phase
and single-phase faults and Table 14 shows the general settings for the protections.
Table 14 Proposed protective adjustments Route B – Area 3
Tag
Adjust Phase
[p.u/A]
Time Dial
Phase
C5.
4132HYS145-P
L=0.7/280
Hydraulic Unit I= 7/2800
Filter 200HP
L=1
I=0.015
C3
4132L=0.7/224
AGI115-M Fil
I= 5/1600
100HP
L= 1
I= 0.015
C1
4132- L=1/2000
SGL102
& S=3.5/7000
MCL102
I= off
L= 3
S=0.10
I= off
Phase
Curve
L-T5 400630
TMG
320-500
Hot
L-T5 400630
TMG
320-500
Hot
L-Curve
S-I t off
Adjust Earth
[p.u/A]
G=0.7/280
NI=7/2800
G=0.7/224
NI=5/1600
G=1/2000
Time
Dial
Earth
Earth
Curve
G-T1 160
G= 1
TMD 16NI=0.015 63
500
Hot
G-T1 160
G= 1
TMD 16NI=0.015 63
500
Hot
G= 0.1
G=I
off
t-G
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C1
4132MCL102
&
SGL102
C
4132ATL101
&
MCL103
C2
4132SGL101
&
ATL102
L=1/2000
L= 3
L-Curve
G=I t-G
S=3.5/7000
S=0.10
G=1/2000
G= 0.1
S-I t off
off
I= off
I= off
L=0.8/960
L= 3
L-Curve
G=I t-G
S=2/2400
S=0.10
G=1/1200
G= 0.1
S-I t off
off
I= off
I= off
L=1/1200
L= 6
L-Curve
G=I t-G
S=2.5/3000
S=0.15
G=1/2000
G= 0.15
S-I t off
off
I= off
I= off
L=0.8/3200
L= 3
C
4132L-Curve
S=1.5/6000
S=0.30
G=0.6/2400
G= 0.4
G=Const
XTR102_LV
S-const
I= 10/40000
I= 0.03
51=0.1/80
51=0.4
51=IEC
CB.4132E1.50=0.25/200 E1.50=0.45 CurveB
50N=0.015/12 50N=0.05 Definite
XTR102_HV*
E2.50=2.5/2000 E2.50=0.05 50=Definite
*Note: The 800/5 CT is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for the
ground function setting, the setting would correspond to (1.2p.u/12A). Two instantaneous stages
associated with the 22.9kV side are also defined to ensure coordinated operation in the event of faults
downstream of the transformer and to clear faults in the high voltage winding of the transformer.
Figure 94 Three-Phase Fault. Motor 4132-HYS145
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Figure 95 Single-Phase to Ground Fault Phase plot. Motor 4132-HYS145
Figure 96 Single-Phase to Ground Fault Earth plot. Motor 4132-HYS145
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Figure 97 Three-Phase Fault. Motor 4132-AGI115
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Figure 98 Single-Phase to Ground Fault Phase plot. Motor 4132-AGI115
Figure 99 Single-Phase to Ground Fault Earth plot. Motor 4132-AGI115
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Figure 100 Three-Phase Fault. Feeder Circuit Braker 4132-MCL102
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Figure 101 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-MCL102
Figure 102 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-MCL102
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Figure 103 Three-Phase Fault. Feeder Circuit Braker 4132-MCL103
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Figure 104 Single-Phase to Ground Fault. Feeder Phase plot. Circuit Braker 4132-MCL103
Figure 105 Single-Phase to Ground Fault. Feeder Earth plot. Circuit Braker 4132-MCL103
108
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Figure 106 Three-Phase Fault. Feeder Circuit Braker 4132-ATL101
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Figure 107 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-ATL101
Figure 108 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-ATL101
110
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Figure 109 Three-Phase Fault. Feeder Circuit Braker 4132-SGL102
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Figure 110 Single-Phase to Ground Fault Phase plot. Feeder Circuit Braker 4132-SGL102
Figure 111 Single-Phase to Ground Fault Earth plot. Feeder Circuit Braker 4132-SGL102
112
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Figure 112 Three-Phase Fault. Internal Bus HV 4132 XTR102
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Figure 113 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR102
Figure 114 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR102
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4.1.3.3 Protection Coordination Route “C”- Area 3
Taking the current values established for transformer 4132-XTR103 of 2.5 MVA and voltage
22.9/4.16 kV as shown in drawing 21466447-D-4132-EL-DWG-20008. The general settings
for the transformer are defined below.
•
Relay GE845. 4132-SGM101 2.5 MVA with 4.16 kV voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅103. 𝑀𝑒𝑑𝑖𝑢𝑚 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
2.5𝑀𝑉𝐴
4.16𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅103. 𝐿𝑉 → 347𝐴 𝑥 1.3 = 451.05𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅103. 𝐿𝑉 → 347𝐴 𝑥 0.20 = 69.4𝐴
•
= 347𝐴
Relay GET60. 4132-SGM101 2.5 MVA with 22.900 V voltage
2.5𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑋𝑇𝑅103. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 63𝐴
22.9𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑋𝑇𝑅103. 𝐻𝑉 → 63𝐴 𝑥 1.3 = 82𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑋𝑇𝑅103. 𝐻𝑉 → 63𝐴 𝑥 0.20 = 12.6𝐴
These protections established for the transformer, guarantee that in case of internal failures
in the Medium Voltage Switchgear 4.16 kV, feeding the Filter Feed Pump with 250 hp and
300 hp capacity, each motor has a VFD controlled starting system, the 4132-XTR102
transformer in its star connection grounded through a grounded resistor has a relay
dedicated to measure the current limited to 5 A as shown in the drawing 21466447-D-4132EL-DWG-20008 and protected by a neutral grounding resistance monitor SE-330 that
commands an opening signal to the high voltage winding switch 22.9 kV.
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for route C where selectivity is
guaranteed, as shown in Figure 115 to Figure 119, the behavior is adequate for three-phase
and single-phase faults and Table 15 shows the general settings for the protections.
Table 15 Proposed protective adjustments Route C – Area 3
Tag
GE845
4132XTR103_MV**
GET60
4132XTR103_HV*
Adjust
Phase
[p.u/A]
Time
Dial
Phase
Phase
Curve
Adjust Earth
[p.u/A]
Time Dial
Earth
Earth
Curve
51=1.13/452
51=0.05
51=IEC
50N=0.013/5.2
CurveB
50N=0.05
Definite
51=0.1/80
51=0.16
51=IEC
50N=0.015/12
CurveB
50N=0.05
Definite
GF
TRIP GF
TRIP
LEVEL
LEVEL
Definite
[0.4/4]
[0.2s]
*Note: CT 800/5 is taken as reference for ANSI 51/51N currents, if CT 10/5 is considered for the
ground function setting, the setting would correspond to (1.2p.u/12A).
SE-330
4132-XTR103_HV
-
-
-
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**Note: CT 400/5 is taken as reference for ANSI 51/51N currents, if CT 50/5 is considered for the
ground function setting, the setting would correspond to (0.104p.u/5.2A).
Figure 115 Three-Phase Fault. Bus 4132-SGM-101
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Figure 116 Single-Phase to Ground Fault Phase plot. Bus 4132-SGM-101
Figure 117 Single-Phase to Ground Fault Earth plot. Bus 4132-SGM-101
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Figure 118 Three-Phase Fault. Internal Bus HV 4132 XTR103
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Figure 119 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR103
Figure 120 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR103
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4.1.3.4 Protection Coordination Feeder 4132-SGH101 - Area 3
The Medium Voltage Switchgear (GIS) power supply associated with 4132-SGH101 from
the 6130-SGH101 switchgear and shared with the Medium Voltage Switchgear (GIS) 4131SGH101, by means of a 250 kcmil gauge conductor as specified in drawing 21466447-D4131-EL-DWG-20000 under the specified a nominal carrying capacity for the Feeder of 415
A is taken.
Under the above, the current pickup for relay 4132-SGH101 is presented below.
•
Relay GE750. 4132-SGH101 with 22.900 V voltage
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐹𝑒𝑒𝑑𝑒𝑟 4132 − 𝑆𝐺𝐻101 → 415𝐴
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 4132 − 𝑆𝐺𝐻 → 415𝐴 𝑥 1.25 = 518.75𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 4132 − 𝑆𝐺𝐻 → 415𝐴 𝑥 0.20 = 83𝐴
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for feeder where selectivity is
guaranteed, as shown in Figure 121 to Figure 131, the behavior is adequate for three-phase
and single-phase faults and Table16 shows the general settings for the protections.
Table16 Proposed protective adjustments Feeder 4132-SGH101 – Area3
Tag
Adjust Phase Time Dial Phase Adjust Earth Time Dial Earth
[p.u/A]
Phase
Curve
[p.u/A]
Earth
Curve
GE750
51=0.65/520
4132-SGH101*
51=0.05
51=IEC
50N=0.02/16 50N=0.15 Definite
CurveB
*Note: The 800/5 CT is taken as reference for ANSI 51/51N currents, if CT 50/5 is considered for the
ground function setting, the setting would correspond to (0.32p.u/16A).
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Figure 121 Three-Phase Fault. Internal Bus HV 4132 XTR101
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Figure 122 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR101
Figure 123 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR101
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Figure 124 Three-Phase Fault. Internal Bus HV 4132 XTR102
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Figure 125 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR102
Figure 126 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR102
124
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Figure 127 Three-Phase Fault. Internal Bus HV 4132 XTR103
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Figure 128 Single-Phase to Ground Fault Phase plot. Internal Bus HV 4132 XTR103
Figure 129 Single-Phase to Ground Fault Earth plot. Internal Bus HV 4132 XTR103
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Figure 130 Three-Phase Fault Switchgear 4132-SGH101
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Figure 131 Single-Phase to Ground Fault Phase plot. Switchgear 4132-SGH101
Figure 132 Single-Phase to Ground Fault Earth plot. Switchgear 4132-SGH101
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4.1.4
AREA 4
4.1.4.1 Protection Coordination Route - Area 4
In the present area, the main power supply of the different areas is established where the
main transformer of 20-25MVA and voltage 138/22.9 kV denoted 4110-TXR101 as can be
seen in the drawing 21466447-D-6130-EL-DWG-20005.
The main protection relays are installed in the 6130-SGH101 22.9 kV Gas Insulated
Switchgear, these are in charge of protecting the secondary side of the transformer at
22.9kV and protecting the links of area 1 that is between cell 6130-SGH101 and cell 4110SGH101 and area 2-3 that connects cell 6130-SGH101 with cell 4131-SGH101 area 2 and
with cell 4132-SGH101 area 3.
The 380 A power transmission capacity of the conductors connected between switchgear
6130-SGH101 and switchgear 4110-SGH101, 4131-SGH101 and 4132-SGH101 is taken
into account.
•
C1. 6130-SGH101, connecting 4110-SGH101 with 22.9 kV Relay GE750
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 380𝐴 𝑐𝑜𝑛𝑑𝑢𝑐𝑡𝑜𝑟′𝑠 𝑐𝑎𝑝𝑎𝑐𝑖𝑡𝑦
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 380𝐴 𝑥 1.25 = 475𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 380𝐴 𝑥 0.20 = 76𝐴
•
C2. 6130-SGH101, connecting 4132-SGH101 and 4131-SGH101 with 22.9 kV Relay
GE750
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 → 380𝐴 𝑐𝑜𝑛𝑑𝑢𝑐𝑡𝑜𝑟′𝑠 𝑐𝑎𝑝𝑎𝑐𝑖𝑡𝑦
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 → 380𝐴 𝑥 1.25 = 475𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 → 380𝐴 𝑥 0.20 = 76𝐴
For the 4110-TXR101 power transformer, the ONAF power rating of 25 MVA is considered
to determine the current pickup as shown below:
•
C1. 6130-SGH101, 4110-TXR101 with 22.9 kV Relay GE T60
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑇𝑋𝑅101. 𝑀𝑒𝑑𝑖𝑢𝑚 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
25𝑀𝑉𝐴
22.9𝑘𝑉 𝑥 √3
= 630.3𝐴
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑇𝑋𝑅101. 𝑀𝑉 → 630.3𝐴 𝑥 1.3 = 819.38𝐴
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑇𝑋𝑅101. 𝑀𝑉 → 630.3𝐴 𝑥 0.20 = 126.06𝐴
•
CB. 6130-CSW101, 4110-TXR101 with 138 kV Relay GE T60
25𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑡𝑟𝑎𝑛𝑠𝑓𝑜𝑟𝑚𝑒𝑟 𝑇𝑋𝑅101. 𝐻𝑖𝑔ℎ𝑡 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 →
= 104.6𝐴
138𝑘𝑉 𝑥 √3
Applying the generalized criteria for the protection functions we obtain:
𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51 𝑇𝑋𝑅101. 𝐻𝑉 → 104.6𝐴 𝑥 1.3 = 135.97𝐴
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𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐴𝑁𝑆𝐼 51𝑁 𝑇𝑋𝑅101. 𝐻𝑉 → 104.6𝐴 𝑥 0.20 = 20.92
Having established the above, the values allowed by the circuit breakers are taken to
determine the setting of the protection functions established for feeder where selectivity is
guaranteed, as shown in Figure 133 to Figure 143, the behavior is adequate for three-phase
and single-phase faults and Table 17 shows the general settings for the protections.
Table 17 Proposed protective adjustments Route – Area 4
Time
Dial
Phase
Phase
Curve
Adjust
Earth
[p.u/A]
Time Dial
Earth
GE750 6130-SGH101 to
51=0.6/480
4110-SGH101
51=0.14
51=IEC
Curve A
50N=
0.02/16
50N=0.12
50N=
Definite
GE750 4110-SGH101 to
6130-SGH101
51=0.14
51=IEC
Curve A
50N=
0.02/16
50N=0.12
50N=
Definite
51=0.25
51=IEC
Curve B
50N=
0.02/16
50N=0.22
50N=
Definite
51=IEC
CurveB
50N=
0.02/16
50N=0.35
50N=
Definite
51=IEC
CurveB
51N=
0.05/20
51N=0.01
51N=IEC
Curve A
Tag
GE750 6130-SGH101 to
4131-SGH101
Adjust
Phase
[p.u/A]
51=0.6/480
51=0.6/480
GE T60
613051=1.03/824 51=0.17
SGH101_4110TXR101 MV
GE T60
613051=0.34/136 51=0.22
CSW101_4110TXR101 HV
SE-330
4110-TXR101_HV
-
-
-
GF TRIP GF TRIP
LEVEL
LEVEL
[0.2/5]
[0.5s]
Earth
Curve
Definite
Note: The 800/5 CT is taken as reference for ANSI 51/51N.
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Figure 133 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4110-SGH101
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Figure 134 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4110-SGH101 Phase
plot
Figure 135 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4110-SGH101 Earth
plot
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Figure 136 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4131-SGH101
133
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Figure 137 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4131-SGH101 Phase
plot.
Figure 138 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4131-SGH101 Earth
plot.
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Figure 139 Three-Phase Fault. Line 50% Feeder 6130-SGH101_4132-SGH101
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Figure 140 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4132-SGH101 Phase
plot.
Figure 141 Single-Phase to Ground Fault. Line 50% Feeder 6130-SGH101_4132-SGH101 Earth
plot.
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Figure 142 Three-Phase Fault. Bus 6130 SGH101
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Figure 143 Single-Phase to Ground Fault. Bus 6130 SGH101 Phase plot.
Figure 144 Single-Phase to Ground Fault. Bus 6130 SGH101 Earth plot.
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4.1.4.2 Differential Protection Transformer 4110-TXR101 - Area 4
Associated with the protection relay, the primary winding with voltage 138 kV with current
transformer 400/5 and for the secondary winding with voltage 22.9 kV a current transformer
800/5 is used.
Magnitude compensation:
CTs should be matched to the current rating of each transformer winding, so that normal
current through the power transformer is equal on the secondary side of the CT on different
windings.
1. Calculate the rated current (Irated) for each winding
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 4110𝑇𝑋𝑅101. 𝐻𝑉 →
25𝑀𝑉𝐴
138𝑘𝑉 𝑥 √3
25𝑀𝑉𝐴
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 4110𝑇𝑋𝑅101. 𝑀𝑉 →
22.9𝑘𝑉 𝑥 √3
2. Calculate the CT margin (Imargin) for each winding:
= 104.592𝐴
= 630.295𝐴
𝐼𝑚𝑎𝑟𝑔𝑖𝑛 [𝑊1] 4110𝑇𝑋𝑅101. 𝐻𝑉 →
400 𝐴
= 3.82
104.592 𝐴
𝐼𝑚𝑎𝑟𝑔𝑖𝑛 [𝑊2] 4110𝑇𝑋𝑅101. 𝑀𝑉 →
800 𝐴
= 1.27
630.295 𝐴
3. Choose the winding with the lowest CT margin
𝑆𝑖𝑛𝑐𝑒 𝐼𝑚𝑎𝑟𝑔𝑖𝑛[2] < 𝐼𝑚𝑎𝑟𝑔𝑖𝑛[1], 𝑡ℎ𝑒 𝑟𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒 𝑤𝑖𝑛𝑑𝑖𝑛𝑔 𝑤𝑟𝑒𝑓 𝑖𝑠 𝑤𝑖𝑛𝑑𝑖𝑛𝑔 2.
Magnitude compensation factors (M) are the scaling values by which each winding current
is multiplied to refer it to the reference winding. The T60 calculates magnitude compensation
factors for each winding as follows:
𝑀[𝑊1] 4110𝑇𝑋𝑅101. 𝐻𝑉 →
400 𝐴 𝑥 138 𝑘𝑉
= 3.013
800 𝐴 𝑥 22.9 𝑘𝑉
𝑀[𝑊2] 4110𝑇𝑋𝑅101. 𝑀𝑉 →
800 𝐴 𝑥 22.9 𝑘𝑉
= 1.000
800 𝐴 𝑥 22.9 𝑘𝑉
Percent Differential Pickup — This setting defines the minimum differential current
required for operation. It is chosen based on the amount of differential current that can be
seen under normal operating conditions. Two factors can create differential current during
normal transformer operation: errors due to CT inaccuracies where 5% is considered and
current variation due to tap changer operation associating ±2x2.5% as shown in Table 18.
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Table 18 Current variation due to tap changer operation Transformer 4110-TXR101
Carga Devanado Primario (HV) Devanado Secundario (MV)
25MVA Voltaje (V) Corriente (A)
Voltaje (V)
Corriente (A)
Tap -2
131100
110.097
22900
630.2951
Tap 0
138000
104.59
22900
630.2951
Tap +2
144900
99.612
22900
630.2951
The starting current is defined as a function of the differential current associated with the
operation and additional factor, obtaining PICKUP: 0.30 p.u.
Percent Differential Break 1 — This setting needs to be set above the maximum load
current and can be moved to the AC current under which all the CTs are guaranteed to
transform without saturation, so for Breakpoint 1 a value on the restriction axis of 1.03p.u.
Percent Differential Slope 1 — Defines the percentage bias for the restraining currents
below the lower breakpoint (BREAK 1). This setting determines the sensitivity of the relay
for low current internal faults. defining for Slope 1 a value of 25%.
Percent Differential Break 2 — Defines the higher breakpoint of the dual-slope operating
characteristic. Set BREAK 2 setting below the fault current that is likely to saturate the
weakest CT feeding the relay. The adjustment starts from the short-circuit current allowed
by the 9.3% short-circuit impedance of the transformer and a value of 5.5 p.u. is obtained
for Breakpoint 2.
Percent Differential Slope 2 — Defines the percentage bias for the restraining currents
above the higher breakpoint (BREAK 2). This setting affects stability of the relay for heavy
external faults. This requirement can be considerably relaxed in favor of sensitivity and
speed of operation as the relay detects CT saturation and upon detection applies the
directional principle to prevent maloperation. When adjusting this setting, keep in mind that
the restraining signal is created as the maximum of all the input currents. Therefore, a value
of 50% is typically defined for the Slope 2 associated with the transformer's nominal power
ratings.
With the adjust defined, the characteristic shown in the Figure 145 is established.
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Figure 145 Percent differential operating characteristic. Transformer 4110-TXR101
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5. RECOMMENDATIONS AND CONCLUSIONS
We recommend updating this study with the plate data of the protection relays and the
electrical equipment finally supplied in the mine. This update must be done prior to the
start-up of the projected system so that the setup and configuration of the electrical
system can be configured.
5.1 AREA 1
-
The settings established for the motors and low voltage equipment associated with
the route A defined for Area 1 guarantee instantaneous clearing of three-phase and
single-phase faults.
-
In the event of three-phase faults in the motor control cubicles 3145-MCL101, 4110MCL101 and 4125-MCL101, the feeder settings were defined seeking a 50ms
margin between the local circuit breakers protecting the conductor and the remote
circuit breakers established in cubicle 4110-SGL101.
-
It is proposed to enable an instantaneous stage in the circuit breaker that protects
the secondary winding of transformer 4110-XTR102 against three-phase faults in the
busbar of cubicle 4110-SGL101, this ensures selectivity of the protections.
-
For the coordination path B associated to transformer 4110-XTR101 where it feeds
the relays that protect the motors with a voltage of 4.16 kV, there is an adequate
performance against the different faults; however, since these are high power
motors, the current contributions to the fault make the protections not being
directional also operate against upstream faults.
-
It is identified that the protection functions associated with the 4000 hp 4110-MIL125,
3145-MIL120 and 250 hp 4110-PPP130A-B motors, operate before upstream threephase faults losing selectivity, this can be avoided by implementing directional
protections for each equipment being agreed with the equipment vendor.
5.2 AREA 2
-
According to the proposed settings and the coordination paths analyzed, selectivity
between protections is guaranteed when single-phase and three-phase faults occur
in area 2.
-
A setting of 3200 A is defined for the short time setting "S" current of the protections
associated to feeder 4131-MCL102 to 4131-ATL101, because when three-phase
faults occur in bus 4131-MCL101, the contributions of the motors associated to
cubicle 4131-MCL102 are around 2960 A. With this value, the correct operation of
the protections is ensured.
5.3 AREA 3
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-
Coordination of protections is ensured for the established routes in area 3 where
loads downstream of transformers 4132-XTR101, XTR102 and XTR103 operate at
times lower than their feeders.
-
The setting associated with the relay of the 4132-SGM101 feeder is presented,
guaranteeing downstream fault clearing and the starting current is defined according
to the power of the 2.5 MVA transformer without intervening with the protection
elements of the inverters connected to the switchgear.
-
When faults occur in bus 4132-SGH101, the protection associated with the feeder in
this cubicle guarantees the clearing of the fault locally maintaining a margin of about
180 ms with the main protection provided in cubicle 6130-SGH101, avoiding the nonsupply of power to Area 2.
5.4 AREA 4
-
The coordination associated with the 4110-TXR101 power transformer with respect
to the proposed settings for the feeders connecting cell 6130-SGH101 to cell 4110SGH101 and cell 4131, 4132-SGH101 guarantees a coordination margin greater
than 150 ms.
-
Since there is no information on the definitive protections to be installed in the project,
it is recommended to define a Time Dial value not less than 0.22 for the 138 kV
voltage level considering a primary current of 136 A and an IEC B curve. This
ensures selectivity of the phase overcurrent function of the 4110-TXR101
transformer.
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6. REFERENCES
[1] WSP, «Load Flow and shortcircuit study-21466447-D-0000-EL-MEM-00001,» Bogotá
D.C, 2022.
[2] General Electric Company Corporation GE Multilin, «Instruction Manual Transformer
Protection System GE T60,» GE Multilin, 2022.
[3] IEEE - The Institute of Electrical and Electronics Engineers, «Recommended Practice
for Conducting Motor-Starting Studies and Analysis of Industrial and Commercial Power
Systems,» 2018.
[4] Ministerio de Energía y Minas-, «Código Nacional de Electricidad. Utilización,» Lima,
Perú, 2006.
[5] COES, «PR-20 - Ingreso, modificación y retiro de instalaciones en el SEIN,» Lima, Perú,
2013.
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7. ANNEXES
ANNEX A – CONCENTRATED CONDUCTOR PARAMETERS
ANNEX B – MOTOR AN LOAD LIST
ANNEX C – PROTECTION CONFIGURATION
ANNEX D – ELECTRICAL PROTECTION MODEL
ANNEX E – SINGLE LINE DIAGRAMS OF PROTECTION COORDINATION ROUTES
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ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY – ANNEX A:
CONCENTRATED CONDUCTOR PARAMETERS
21466447-D-0000-EL-MEM-00003-V1
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
21466447-D-0000-EL-MEM-00003-V1
1
Name
3140CVB110M-P
3140CVB115M-P
3140FEE105M-P(1)
3145-LUB120E-P
3145-PPP160AM-P(2)
3145CVB120M-P
3145CVB125M-P
3145CVB130M-P
3145LUB120AM-P
3145LUB120BM-P
3145LUB120CM-P
3145LUB120DM-P
3145MCL101-P
3145MIL120-M
3145MIL120CM-P
3145MTR105A-P
3145MTR105B-P
3145PCSCR120-P
3145PPS050M-P
3145RED120BM-P
3145RED120CM-P
3145WRE101-P
3145WRE102-P
4110-BSL101
4110-HVC101-P
4110-MIL125-M
4110-PRS101-P
4110BCH101-P
4110BDM101-M
4110COM020A-P
4110INC125CM-P
4110LUB125AM-P
4110LUB125BM-P
4110LUB125CM-P
4110LUB125DM-P
4110LUB125EHT-P
4110MCL101-P
4110MIL125CM-P
4110PCSCR135-P
4110PPP130AM(16)
4110PPS050M-P
4110RED125BM-P
4110RED125CM-P
4110SGH101-H
4110SGM101-M
4110SSBRC055-P
4110VFD130A-M
4110WRE101-P
4110WRE102-P
4110XFI103-P
4110XFL101-P
4110XTR101-H
4125MCL101-P
4125PPP020AM-P
4125PPP025AM-P
4125PPP030AM-P
4125PPP031AM-P
4125PPP032AM-P
4125PPP170AM-P
Area
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 4
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Irated
A
32.00
1062.90
68.50
32.00
243.20
354.30
243.20
163.50
369.30
369.30
48.00
48.00
2238.40
1119.20
32.00
68.50
41.00
243.20
97.40
23.00
32.00
163.50
97.40
3000.00
97.40
1119.20
41.00
32.00
1119.20
304.20
97.40
490.50
490.50
48.00
48.00
32.00
2798.00
41.00
97.40
179.30
123.10
23.00
23.00
380.00
417.20
243.20
179.30
123.10
163.50
41.00
163.50
417.20
1119.20
292.20
32.00
243.20
97.40
490.50
68.50
Length
m
150
100
150
130
190
100
140
140
130
130
130
130
60
130
130
150
150
150
120
130
130
150
100
15
150
140
30
100
20
160
140
140
140
140
140
100
60
140
150
170
130
140
140
271
50
130
50
150
180
150
25
50
60
190
200
180
190
170
220
R1
mOhm
652.5
3.6
165.6
565.5
42.0
10.9
31.0
61.3
23.9
23.9
228.0
228.0
1.0
4.3
565.5
165.6
436.0
33.2
83.0
918.9
565.5
56.9
89.9
0.2
103.8
4.7
87.2
652.5
0.7
24.4
96.9
20.4
20.4
245.6
245.6
435.0
0.8
406.9
103.8
59.4
55.1
989.6
989.6
74.0
4.6
28.7
17.5
71.6
56.9
436.0
65.6
4.6
2.0
43.8
870.0
39.8
69.2
14.6
110.4
X1
mOhm
20.8
3.4
15.4
18.0
20.5
10.2
15.1
13.7
4.4
4.4
14.2
14.2
1.5
6.6
18.0
15.4
11.5
16.2
11.6
18.0
18.0
12.8
12.6
0.0
14.6
7.1
2.3
20.8
1.0
19.9
13.6
4.6
4.6
15.3
15.3
13.8
1.2
10.7
14.6
19.5
10.1
19.4
19.4
116.0
5.1
14.0
5.7
13.1
12.8
11.5
14.7
5.1
3.1
6.1
27.7
19.4
9.7
3.3
10.3
R0
mOhm
679.1
9.6
192.3
588.6
75.8
28.7
55.8
86.1
31.6
31.6
251.1
251.1
3.7
15.9
588.6
192.3
462.6
59.8
104.3
942.0
588.6
80.0
113.0
0.0
130.4
17.1
92.5
679.1
2.4
58.1
121.7
28.7
28.7
270.5
270.5
452.7
2.9
431.8
130.4
89.6
72.9
1014.4
1014.4
121.7
13.5
51.8
26.4
94.7
80.0
462.6
92.3
13.5
7.3
55.1
905.5
71.8
87.0
20.5
128.2
X0
mOhm
417.6
80.7
404.3
362.0
474.9
242.2
350.0
363.6
113.4
113.4
355.5
355.5
35.6
154.3
362.0
404.3
430.2
375.0
318.5
368.8
362.0
337.7
345.0
0.0
398.1
166.2
86.0
417.6
23.7
463.8
371.6
121.2
121.2
382.9
382.9
278.4
28.5
401.6
398.1
433.2
261.8
397.2
397.2
575.2
120.3
325.0
127.4
340.3
337.7
430.2
389.6
120.3
71.2
168.1
556.9
450.0
265.4
86.6
269.5
Name
4125PPS075M-P
4125PPS076M-P
4125PPS080M-P
4125SSCNH140A-P
4125SSCNH140B-P
4125SSCNH145-P
4125THK160A-P
4125THK160B-P
4125VFD160A-P
4125XFI101-P
4125XFI102-P
4125ZZZ010-P
413-PPP130M-P
4131-BSL100
4131-BSL101
4131-PPP155AM-P
4131AGI120M-P
4131AGI125M-P
4131AGI130M-P
4131AGI135M-P
4131AGI140M-P
4131AGI145M-P
4131ATL101-P
4131BCH101-P
4131CNH005M-P
4131COM020AM-P
4131COM120AM-P
4131DPJ101-P
4131HVC101-P
4131MCL102-P
4131PP055M-P
4131PP060M-P
4131PP065M-P
4131PPP120M-P
4131PPP125M-P
4131PPP135M-P
4131PPP140M-P
4131PPP145M-P
4131PPP150M-P
4131PPP165M-P
4131PPP170M-P
4131PPP175AM-P
4131PPP175BM-P
4131PPP180AM-P
4131SCR120M-P
4131SCR125M-P
4131SCR130M-P
4131SCR135M-P
4131SCR140M-P
4131SCR145M-P
4131SCR150-P
4131SCR160-P
4131SCR165-P
4131SGH101-H1
4131SGH101-H2
4131WRE101-P
4131WRE102-P
4131XFI101-P
4131XFI102-P
4131XFL101-P
Area
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 4
Area 4
Area 2
Area 2
Area 2
Area 2
Area 2
Irated
68.50
97.40
123.10
23.00
23.00
97.40
68.50
68.50
243.20
41.00
41.00
48.00
68.50
4000.00
2500.00
532.80
243.20
243.20
243.20
243.20
243.20
243.20
2340.00
32.00
304.20
226.00
417.20
97.40
97.40
2340.00
163.50
163.50
163.50
68.50
68.50
68.50
68.50
68.50
32.00
68.50
97.40
23.00
23.00
97.40
68.50
68.50
68.50
68.50
68.50
68.50
48.00
48.00
48.00
380.00
415.00
179.30
179.30
48.00
41.00
243.20
Length
200
190
220
150
190
190
190
100
20
25
25
210
100
12
12
155
190
184
184
173
100
100
35
150
100
190
201
150
150
23
100
100
100
184
184
173
173
161
173
150
207
138
132
140
184
178
178
173
161
161
150
150
100
125
209
173
173
150
150
150
R1
110.4
131.5
121.2
1060.3
1343.0
131.5
110.4
110.4
4.4
436.0
436.0
175.4
110.4
0.1
0.2
11.8
22.1
22.1
22.1
22.1
22.1
22.1
0.7
652.5
12.8
18.0
9.2
103.8
103.8
0.5
43.8
43.8
43.8
110.4
203.2
110.4
110.4
110.4
652.5
165.6
69.2
1060.3
1060.3
69.2
110.4
110.4
110.4
110.4
110.4
110.4
263.1
263.1
175.4
34.1
33.8
45.5
45.5
263.1
436.0
33.2
X1
10.3
18.4
22.2
20.8
26.3
18.4
10.3
10.3
2.2
11.5
11.5
10.9
10.3
0.0
0.0
8.3
10.8
10.8
10.8
10.8
10.8
10.8
0.8
20.8
10.5
11.1
10.2
14.6
14.6
0.5
9.8
9.8
9.8
10.3
18.9
10.3
10.3
10.3
20.8
15.4
9.7
20.8
20.8
9.7
10.3
10.3
10.3
10.3
10.3
10.3
16.3
16.3
10.9
53.5
33.5
14.9
14.9
16.3
11.5
16.2
R0
128.2
165.2
160.3
1086.9
1376.7
165.2
128.2
128.2
8.0
462.6
462.6
193.2
128.2
0.0
0.0
25.5
39.9
39.9
39.9
39.9
39.9
39.9
2.3
679.1
30.6
35.8
26.9
130.4
130.4
1.5
61.5
61.5
61.5
128.2
235.9
128.2
128.2
128.2
679.1
192.3
87.0
1086.9
1086.9
87.0
128.2
128.2
128.2
128.2
128.2
128.2
289.8
289.8
193.2
56.1
70.9
68.6
68.6
289.8
462.6
59.8
X0
269.5
504.3
575.9
425.6
539.1
504.3
269.5
269.5
50.0
430.2
430.2
273.5
269.5
0.0
0.0
190.2
250.0
250.0
250.0
250.0
250.0
250.0
21.2
417.6
244.1
247.7
240.5
398.1
398.1
14.0
259.7
259.7
259.7
269.5
495.9
269.5
269.5
269.5
417.6
404.3
265.4
425.6
425.6
265.4
269.5
269.5
269.5
269.5
269.5
269.5
410.2
410.2
273.5
265.3
488.6
331.2
331.2
410.2
430.2
375.0
Name
4132AGI115M-P
4132AGI116M-P
4132AGI160M-P
4132ATL101-P1
4132BCH101-P
4132BRC005-P
4132BRC010-P
4132CNH015-P
4132CNH020-P
4132CNH025-P
4132CNH030-P
4132CNH035-P
4132CNH040-P
4132COM020-P
4132COM025-P
4132CVB125M-P
4132CVB130M-P
4132CVB140M-P
4132CVB145M-P
4132CVB150M-P
4132CVB160M-P
4132CVB165M-P
4132CVB170M-P
4132HVC101-P
4132HYS125-P
4132HYS130-P
4132HYS145-P
4132HYS150-P
4132MCL101-P
4132MCL102-P
4132MCL103-P
4132PPM017AM-P
4132PPP105AM-P
4132PPP110AM-P
4132PPP112A-P
4132PPP114AM-P
4132PPP116AM-P
4132PPP118M-P
4132PPP119M-P
4132PPP120AM-M
4132PPP120BM-M
4132PPP125M-M
4132PPP126M-M
4132PPP135M-M
4132PPP136M-M
4132PPP160A-P
4132PPP165AM-P
4132PPP165BM-P
4132PPP170M-P
4132PPP175M-P
4132PPS050M-P
4132PPS053M-P
4132PRS101-P
4132SGH101-H
4132SGM101-M
4132THK105M-P
4132TXI101-P
4132VFD120A-M
4132VFD120B-M
4132VFD125-M
Area
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 4
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Irated
358.60
358.60
48.00
1251.60
32.00
97.40
97.40
32.00
32.00
48.00
68.50
48.00
68.50
417.20
417.20
179.30
179.30
179.30
179.30
179.30
179.30
266.40
266.40
243.20
417.20
417.20
417.20
417.20
2503.20
2086.00
1251.60
32.00
243.20
243.20
32.00
32.00
97.40
41.00
41.00
179.30
179.30
179.30
179.30
179.30
179.30
243.20
32.00
32.00
32.00
32.00
48.00
32.00
48.00
415.00
417.20
48.00
41.00
537.90
537.90
537.90
Length
95
75
80
40
20
100
100
125
125
100
125
100
125
60
60
85
90
142
85
90
140
210
245
25
130
140
130
140
40
40
20
110
50
85
100
120
120
120
120
100
100
125
135
60
75
100
100
100
100
100
95
112
30
169
50
95
25
5
3
5
R1
17.5
17.5
175.4
1.2
87.0
69.2
69.2
652.5
652.5
175.4
110.4
175.4
110.4
9.2
9.2
35.0
31.5
35.0
29.7
31.5
49.0
15.2
15.2
5.5
9.2
9.2
9.2
9.2
0.6
0.7
0.6
478.5
11.1
18.8
435.0
435.0
69.2
290.7
290.7
3.5
3.5
3.5
3.5
3.5
3.5
22.1
435.0
435.0
435.0
435.0
166.6
435.0
52.6
27.3
4.6
175.4
436.0
0.6
0.3
0.6
X1
5.7
5.7
10.9
1.4
2.8
9.7
9.7
20.8
20.8
10.9
10.3
10.9
10.3
10.2
10.2
11.5
10.3
11.5
9.7
10.3
16.0
10.7
10.7
2.7
10.2
10.2
10.2
10.2
0.7
0.8
0.7
15.2
5.4
9.2
13.8
13.8
9.7
7.6
7.6
1.1
1.1
1.1
1.1
1.1
1.1
10.8
13.8
13.8
13.8
13.8
10.4
13.8
3.3
27.1
5.1
10.9
11.5
0.2
0.1
0.2
R0
26.4
26.4
193.2
3.6
90.5
87.0
87.0
679.1
679.1
193.2
128.2
193.2
128.2
26.9
26.9
52.7
47.5
52.7
44.8
47.5
73.8
32.9
32.9
10.0
26.9
26.9
26.9
26.9
1.8
2.2
1.8
498.0
19.9
33.9
452.7
452.7
87.0
308.4
308.4
5.3
5.3
5.3
5.3
5.3
5.3
39.9
452.7
452.7
452.7
452.7
183.5
452.7
58.0
57.3
13.5
193.2
462.6
0.9
0.4
0.9
X0
127.4
127.4
273.5
32.1
55.7
265.4
265.4
417.6
417.6
273.5
269.5
273.5
269.5
240.5
240.5
254.8
229.3
254.8
216.6
229.3
356.7
245.4
245.4
62.5
240.5
240.5
240.5
240.5
16.0
19.2
16.0
306.3
125.0
212.5
278.4
278.4
265.4
286.8
286.8
25.5
25.5
25.5
25.5
25.5
25.5
250.0
278.4
278.4
278.4
278.4
259.8
278.4
82.0
395.1
120.3
273.5
430.2
4.2
2.1
4.2
Name
4132VFD126-M
4132VFD135-M
4132VFD136-M
4132WRE101-P
4132WRE102-P
4132WRE103-P
4132XFI101-P
4132XFL101-P
4132XTR101-H
4132XTR102-H
4132XTR103-H
4132ZZZ015-P
6130SGH101-H
L-1136(1)
L-1136(2)
Area
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 4
Area 4
Area 4
Irated
537.90
537.90
537.90
97.40
97.40
97.40
32.00
179.30
243.20
243.20
243.20
48.00
3540.00
209.00
209.00
Length
5
5
5
125
125
125
30
25
40
50
30
115
80
100400
2000
R1
0.6
0.6
0.6
89.9
89.9
89.9
130.5
8.7
8.8
11.1
6.6
201.7
0.9
16011.8
319.0
X1
0.2
0.2
0.2
12.6
12.6
12.6
4.2
2.9
4.3
5.4
3.2
12.5
1.5
51296.4
1021.8
R0
0.9
0.9
0.9
113.0
113.0
113.0
135.8
13.2
16.0
19.9
12.0
222.2
3.5
45421.0
904.8
X0
4.2
4.2
4.2
345.0
345.0
345.0
83.5
63.7
100.0
125.0
75.0
314.5
6.0
146513.7
2918.6
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY – ANNEX B:
MOTOR AN LOAD LIST
21466447-D-0000-EL-MEM-00003-V1
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
21466447-D-0000-EL-MEM-00003-V1
1
Name
Area
In
Service
Electrical Load
Drive Type
kW
3140-CVB110
3140-CVB115
3140-FEE105
3145-CVB120
3145-CVB125
3145-CVB130
3145-INC120C-M
3145-LUB120A
3145-LUB120B
3145-LUB120C
3145-LUB120D
3145-LUB120E
3145-MIL120
3145-MIL120C
3145-MTR105B
3145-PC-SCR120
3145-PPS050
3145-RED120B
3145-RED120C
3145MTR105A
4110-COM020A
4110-COM020B
4110-INC125C-M
4110-LUB125A-M
4110-LUB125B-M
4110-LUB125C-M
4110-LUB125D-M
4110-LUB125E-HT
4110-MIL125
4110-MIL125C
4110-PC-SCR135
4110-PPP130A
4110-PPP130B
4110-PPS050
4110-RED125B-M
4110-RED125C-M
4110-SS-BRC055
4125-CNH140A
4125-CNH140B
4125-PPP020A
4125-PPP020B
4125-PPP025A
4125-PPP025B
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
3.7
74.6
14.9
74.6
44.8
11.2
29.8
44.8
44.8
11.2
11.2
6.0
2984.0
5.6
2.7
37.5
29.8
5.6
1.5
22.4
111.9
111.9
29.8
44.8
44.8
11.2
11.2
11.2
2984.0
5.6
22.4
186.5
186.5
44.8
1.5
5.6
63.4
5.8
5.8
18.7
18.7
5.6
5.6
FVR
FVNR
VFD
FVNR
FVNR
FVNR
No Info
FVNR
FVNR
FVNR
FVNR
FDR
FVNR
No Info
No Info
FVNR
FVNR
FVNR
No Info
FDR
FDR
No Info
No Info
No Info
No Info
No Info
No Info
FVNR
No Info
VFD
VFD
FVNR
No Info
No Info
No Info
FDR
FDR
FVNR
FVNR
VFD
VFD
Name
Area
In
Service
Electrical Load
Drive Type
kW
4125-PPP030A
4125-PPP030B
4125-PPP031A
4125-PPP032A
4125-PPP032B
4125-PPP160A
4125-PPP160B
4125-PPP170A
4125-PPP170B
4125-PPS075
4125-PPS076
4125-PPS080
4125-SS-CNH145
4125-THK160A
4125-THK160B
4125-ZZZ010
4125PPP031BM-P
4131-AGI120
4131-AGI125
4131-AGI130
4131-AGI135
4131-AGI140
4131-AGI145
4131-COM020A
4131-COM120A
4131-PPP120
4131-PPP125
4131-PPP130
4131-PPP135
4131-PPP140
4131-PPP145
4131-PPP150
4131-PPP155A
4131-PPP155B
4131-PPP165
4131-PPP170
4131-PPP175A
4131-PPP175B
4131-PPP180A
4131-PPP180B
4131-PPS055
4131-PPS060
4131-PPS065
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 1
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
29.8
29.8
7.5
18.7
18.7
93.2
93.2
29.8
29.8
18.7
14.9
14.9
3.0
22.4
22.4
7.5
7.5
56.0
56.0
56.0
56.0
56.0
56.0
93.3
197.7
14.9
14.9
14.9
14.9
14.9
14.9
3.7
186.5
186.5
11.2
18.7
2.2
2.2
18.7
18.7
22.4
22.4
22.4
FVNR
FVNR
FVNR
FVNR
FVNR
VFD
VFD
FVNR
FVNR
FVNR
FVNR
FVNR
No Info
No Info
No Info
FDR
No Info
SS
SS
SS
SS
SS
SS
FDR
FDR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
VFD
VFD
VFD
VFD
FVNR
VFD
VFD
VFD
VFD
FVNR
FVNR
FVNR
Name
Area
In
Service
Electrical Load
Drive Type
kW
4131-SCR120
4131-SCR125
4131-SCR130
4131-SCR135
4131-SCR140
4131-SCR145
4131-SCR150
4131-SCR160
4131-SCR165
4132-AGI115
4132-AGI116
4132-AGI160
4132-COM020
4132-COM025
4132-COM030
4132-CVB125
4132-CVB130
4132-CVB135
4132-CVB140
4132-CVB145
4132-CVB150
4132-CVB155
4132-CVB160
4132-CVB165
4132-CVB170
4132-HYS125
4132-HYS130
4132-HYS135
4132-HYS145
4132-HYS150
4132-HYS155
4132-PPM017A
4132-PPM017B
4132-PPP105A
4132-PPP105B
4132-PPP110A
4132-PPP110B
4132-PPP112A
4132-PPP112B
4132-PPP114A
4132-PPP114B
4132-PPP116A
4132-PPP116B
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 2
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
YES
7.5
7.5
7.5
7.5
7.5
7.5
4.5
7.5
2.4
149.2
149.2
14.9
186.5
186.5
186.5
18.7
14.9
14.9
37.3
14.9
14.9
14.9
37.3
37.3
37.3
149.2
149.2
149.2
149.2
149.2
149.2
1.5
1.5
56.0
56.0
37.3
37.3
5.6
5.6
0.7
0.7
14.9
14.9
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FDR
FDR
FDR
SS
SS
FVNR
FDR
FDR
FDR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FDR
FDR
FDR
FDR
FDR
FDR
FVNR
FVNR
VFD
VFD
VFD
VFD
FVNR
FVNR
FVNR
FVNR
VFD
VFD
Name
Area
In
Service
Electrical Load
Drive Type
kW
4132-PPP118
4132-PPP119
4132-PPP120A
4132-PPP120B
4132-PPP120C
4132-PPP125
4132-PPP126
4132-PPP127
4132-PPP135
4132-PPP136
4132-PPP137
4132-PPP160A
4132-PPP160B
4132-PPP165A
4132-PPP165B
4132-PPP170
4132-PPP175
4132-PPS050
4132-PPS053
4132-PPS055
4132-PPS060
4132-PPS065
4132-PPS070
4132-THK105
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
Area 3
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
7.5
7.5
223.8
223.8
223.8
193.9
193.9
193.9
193.9
193.9
193.9
74.6
74.6
0.7
0.7
0.7
0.7
18.7
7.5
11.2
11.2
11.2
11.2
18.7
FVNR
FVNR
VFD
VFD
VFD
VFD
VFD
VFD
VFD
VFD
VFD
VFD
VFD
FDR
FDR
FDR
FDR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
FVNR
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY – ANNEX C:
PROTECTION CONFIGURATION
21466447-D-0000-EL-MEM-00003-V0
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
21466447-D-0000-EL-MEM-00003-V0
1
Route A Area 1
Adjust Phase Time Dial
Phase
Adjust Earth Time Dial
Earth
[p.u/A]
Phase
Curve
[p.u/A]
Earth
Curve
L= 1
NL=0.64/112
NL=1
C25 4125-VFD160A, PPP160A Pump L=0.7/175
L-T3 250TMD 63-250 Hot
NL=T1 160TMD 16-63 500 Hot
Grinding Thickener 125HP.
I=10/2500
I=0.015
NI=0.64/1600 NI=0.015
Tag
C3 3140-CVB115M, Conveyor Belt to
Scrubber 100HP.
C Feeder 3145-MCL101 a 4110SGL101
C1 Feeder 4110-SGL101 a 3145MCL101
C28 4110-COM020A, Compressor
Plant Air 150HP.
C Feeder 4110-MCL101 a 4110SGL101
C2 Feeder 4110-SGL101 a 4141MCL101
C1 4110-PPS050M, Sump Pump
Milling Area 60HP.
C6. 4110-LPA101 Panel Board to
Lighting System and Receptacles
100kVA
C Feeder 4125-MCL101 a 4110ATL101
L=0.7/175
L= 1
I=10/2500
I=0.015
L=1/1600
L= 3
L-Curve
S=2.5/4000
S=0.15
S-I t off
I=off
I=off
L=1/2000
L= 3
L-Curve
S=2/4000
S=0.2
S-I t off
I=off
I=off
L=0.7/175
L= 1
I=10/2500
I=0.015
L=1/1600
L= 3
L-Curve
S=2.5/4000
S=0.10
S-I t off
I=off
I=off
L=1/1600
L= 3
L-Curve
S=2/4000
S=0.15
S-I t off
I=off
I=off
L=0.7/175
L= 1
I=10/2500
I=0.015
L=0.7/175
L= 1
I=10/2500
I=0.015
L=0.75/600
L= 3
L-Curve
S=4/3200
S=0.15
S-I t off
I=off
I=off
L-T3 250TMD 63-250 Hot
L-T3 250TMD 63-250 Hot
L-T3 250TMD 63-250 Hot
L-T3 250TMD 63-250 Hot
NL=0.64/112
NL=1
NI=0.64/1600 NI=0.015
NL=T1 160TMD 16-63 500 Hot
G=0.8/1280
G=0.1
G=I t-G off
G=0.7/1400
G=0.1
G=I t-G off
NL=0.64/112
NL=1
NI=0.64/1600 NI=0.015
NL=T1 160TMD 16-63 500 Hot
G=1/1600
G=0.1
G=I t-G off
G=1/1600
G=0.1
G=I t-G off
NL=0.64/112
NL=1
NI=0.64/1600 NI=0.015
NL=0.64/112
NL=1
NI=0.64/1600 NI=0.015
G=0.8/640
G=0.1
NL=T1 160TMD 16-63 500 Hot
NL=T1 160TMD 16-63 500 Hot
G=I t-G on
C1 Feeder 4110-ATL101 a 4125MCL101
CB Feeder 4110-ATL101 a 4110SGL101
C3 Feeder 4110-SGL101 a 4110ATL101
CB 4110-SGL101 XTR101 2.5MVA.
L=0.75/600
L= 3
L-Curve
S=4/3200
S=0.15
S-I t off
I=off
I=off
L=1/1200
L= 3
L-Curve
S=3/3600
S=0.2
S-I t off
I=off
I=off
L=1/1600
L= 3
L-Curve
S=3/4800
S=0.2
S-I t off
I=off
I=off
L=1/3200
L= 3
L= Curve
S=2.5/8000
S=0.3
S= I t off
I=12/38400
I=0.04
51:0.82/82
51:00.4
51: IEC Curve B
Relay GE-T60 4110-SGH101 2.5MVA. 50E1:2/200
50E1:0.5
50:Definite
50E2:7.3/730 50E2:0.15
G=0.8/640
G=0.1
G=I t-G on
G=0.6/720
G=0.15
G=I t-G on
G=0.45/704
G=0.15
G=I t-G on
G=0.5/1600
G= 0.4
G=I t-G off
50N:0.1/10
50N:0.02
50N:Definite
Route B Area 1
Tag
Adjust Phase
[p.u/A]
Time Dial
Phase
Relay GE 869 4110-MIL125 Ball Mill
51:0.43/516
4000HP.
51:00.0
Relay GE 869 4110-VFD100 Variable
51:0.43/516
Frequency Drive 4000HP.
51:00.0
Relay Feeder GE-845 4110-SGM101 51:0.35/1050 51:00.1
to 4110-VFD100A
50:12/7200
Relay GE 845 4110-PPP130A Pump
51:0.33/33
Feed Cyclone 250HP.
50E1:0.15
51:00.0
Relay GE-845 4110-SGM101 411051:0.866/2165 51:00.1
XTR101 12MVA.LV
Relay GE-T60 4110-SGH101 411051:0.78/390
XTR101 12MVA.HV
51:00.1
Phase
Adjust Earth
Time Dial
Curve
[p.u/A]
Earth
51: IEC Curve
50N:0.01/12 50N:0.02
A
51: IEC Curve
50N:0.01/12 50N:0.02
A
51: IEC Curve
50N:0.01/30
A
50N:0.12
50:Definite
51: IEC Curve
51N:0.05/5
50N:0.01
A
51: IEC Curve
50N:0.012/30 50N:0.25
A
51: IEC Curve
50N:0.02/10 50N:0.02
A
Earth
Curve
50N:Definite
50N:Definite
50N:Definite
51N:IEC Curve
A
50N:Definite
50N:Definite
Route A Area 2
Tag
Adjust Phase
[p.u/A]
Time Dial
Phase
L=0.48/302.4 L= 3
C17 4131-VFD115A, PPP155A Cil
Residue Pump de 250HP.
S= off
I= 5.5/3465
S=off
I= 0.01
L=0.48/302.4 L= 3
C24 4131-COM120A Cil Compresor
de 265HP.
S= off
I= 5.5/3465
C1 4131-MCL101, Bus Duct 2500A
L=0.5/1250
“BSL101.
C1 4131-SGL101, Bus Duct 2500A
S= 2/5000
“BSL101.
I= off
S=off
I= 0.01
Phase
Curve
L-Curve
PR222/3 630
S- off
G=0.2/126
L-Curve
PR222/3 630
G=0.2/126
S-off
L= 3
L-Curve
S=0.15
S-I t off
I= off
Adjust Earth
[p.u/A]
G=0.2/500
Time Dial
Earth
Earth
Curve
G= 0.1
G=I t-G on
G= 0.1
G=I t-G on
G= 0.15
G=I t-G on
Route B Area 2
Adjust Phase
[p.u/A]
Tag
C1 4131-AGI120
Agitador 75HP.
C10
75kVA.
Cil L=1/125
4131-DPA101
C2 4131-SGL101
4131-ATL101
L= 1
Adjust Earth
[p.u/A]
Time Dial
Earth
NL= 1
G=0.2/32
G= 0.1
NI=0.5/440
NI=0.01
NL= 0.1
M=0.015
L= 3
S= 0.10
T= S5 400-630 NL=1/280
Hot
NI= 1200
L= Curve
G=0.6/960
S= I t off
L= 3
S= 0.15
L= Curve
S= I t off
I= 0.015
L=0.8/128
L= 3
S= off
I= 5.5/880
S=off
I= 0.01
M= 3/1200
L= 0.75/1200
a
S= 1.5/2400
I= off
L= 0.75/1500
a
S= 1.5/3000
I= off
Phase
Curve
L= T3 250
TMD 63-250
Hot
L=Curve
PR222/3
S-off
NL=1/125
I= 10/1250
C20
4131-CNH005 T=0.7/280
Tower Crane 200HP.
C1 4131-ATL101
4131-MCL102
Time Dial
Phase
T= 1
G=0.6/1200
Earth
Curve
NL= T1 160
TMD
16-63
500 Hot
G=I t-G on
NI=0.015
NL= T1 160
TMD
16-63
500 Hot
G= 0.10
G=I t-G on
G= 0.15
G=I t-G on
Transformer XTR101
Adjust Phase
Time Dial
[p.u/A]
Phase
L=0.975/3900 L= 3
CB
4131-SGL101
S= 2/8000
S=0.3
XTR101 2.5MVA.
I= off
I= off
Phase
Curve
L= Curve
S= Const
RelayGE750 413151: 0.41/82
SGH101 2.5MVA.
51: IEC Curve
51N: 0.06/12 51N: 0.05
B
Tag
51:00.6
Adjust Earth
[p.u/A]
G=0.4/1600
Time Dial
Earth
G= 0.4
Earth
Curve
G= G-I2t
51N: IEC
Curve A
Route A Area 3
Tag
Adjust Phase
[p.u/A]
C6. 4132-VFD160A, PPP160A
L=0.7/224
Filtrate Cil Residue Pump de
100HP
I= 5/1600
C33.4132-COM020A
Compresor de 250HP
C1 4132-MCL101
C1 4132-SGL101
CB.4132-XTR101_LV
CB.4132-XTR101_HV*
Time Dial
Phase
L=1
L-T5
TMG
Hot
NI=5/1600
L-Curve
G=0.2/126
PR222/3 630
S-off
NI=0.5/1732
S=off
I= 0.01
L= 3
S=0.10
I= off
L= 3
S=0.10
I= off
L= 3
S=0.20
I= off
51=0.4
51=IEC CurveB
E1.50=0.36
50=Definite
E2.50=0.05
Adjust Earth
[p.u/A]
400-630
G=0.7/224
320-500
I=0.015
L=0.48/302.4 L= 3
S= off
I= 5.5/3465
L=0.75/1500
S=2.5/5000
I= off
L=0.75/1500
S=2.5/5000
I= off
L=0.8/3200
S=2/8000
I= off
51=0.1/80
E1.50=0.25/2
00
E2.50=2.5/20
00
Phase
Curve
Time Dial
Earth
G= 0.1
Earth
Curve
G-T1160 TMD
16-63 500 Hot
NI=0.015
G= 0.1
G=I t-G on
NI=0.01
NI= Definit
L-Curve
S-I t off
G=0.7/1400
G= 0.1
G=I t-G off
L-Curve
S-I t off
G=0.7/1400
G= 0.1
G=I t-G off
L-Curve
S-const
G=0.4/1600
G= 0.2
G=Const
50N=0.015/1
50N=0.05
2
Definite
Route B Area 3
Adjust Phase
[p.u/A]
Tag
C5. 4132-HYS145-P
Unit Filter 200HP
Hydraulic L=0.7/280
C3 4132-AGI115-M Fil 100HP
C1 4132-SGL102 & MCL102
C1 4132-MCL102 & SGL102
C 4132-ATL101 & MCL103
C2 4132-SGL101 & ATL102
C 4132-XTR102_LV
CB.4132-XTR102_HV*
Time Dial
Phase
L=1
Phase
Curve
L-T5
TMG
Hot
400-630
G=0.7/280
320-500
I= 7/2800
I=0.015
L=0.7/224
L= 1
I= 5/1600
L=1/2000
S=3.5/7000
I= off
L=1/2000
S=3.5/7000
I= off
L=0.8/960
S=2/2400
I= off
L=1/1200
S=2.5/3000
I= off
L=0.8/3200
S=1.5/6000
I= 10/40000
51=0.1/80
E1.50=0.25/2
00
E2.50=2.5/20
00
I= 0.015
L= 3
S=0.10
I= off
L= 3
S=0.10
I= off
L= 3
S=0.10
I= off
L= 6
S=0.15
I= off
L= 3
S=0.30
I= 0.03
51=0.4
51=IEC CurveB
E1.50=0.45
50=Definite
E2.50=0.05
L-T5
TMG
Hot
Adjust Earth
[p.u/A]
NI=7/2800
400-630
G=0.7/224
320-500
Time Dial
Earth
G= 1
NI=0.015
G= 1
Earth
Curve
G-T1 160 TMD
16-63 500 Hot
G-T1 160 TMD
16-63 500 Hot
NI=5/1600
NI=0.015
L-Curve
S-I t off
G=1/2000
G= 0.1
G=I t-G off
L-Curve
S-I t off
G=1/2000
G= 0.1
G=I t-G off
L-Curve
S-I t off
G=1/1200
G= 0.1
G=I t-G off
L-Curve
S-I t off
G=1/2000
G= 0.15
G=I t-G off
L-Curve
S-const
G=0.6/2400
G= 0.4
G=Const
50N=0.015/1
50N=0.05
2
Definite
Route C Area 3
Tag
GE845
4132-XTR103_MV**
GET60
4132-XTR103_HV*
SE-330
4132-XTR103_HV
Adjust Phase
[p.u/A]
Time Dial
Phase
51=1.13/452 51=0.05
51=0.1/80
-
51=0.16
-
Phase
Curve
51=IEC
CurveB
51=IEC
CurveB
-
Adjust Earth
Time Dial
[p.u/A]
Earth
50N=0.013/5.
50N=0.05
2
50N=0.015/1
50N=0.05
2
GF TRIP LEVEL GF TRIP LEVEL
[0.4/4]
[0.2s]
Earth
Curve
Definite
Definite
Definite
Feeder 4132-SGH101 Area 3
Tag
GE750
4132-SGH101
Adjust Phase
[p.u/A]
Time Dial
Phase
51=0.65/520 51=0.05
Phase
Curve
51=IEC
CurveB
Adjust Earth
[p.u/A]
Time Dial
Earth
50N=0.02/16 50N=0.15
Earth
Curve
Definite
Area 4
Tag
GE750 6130-SGH101
4110-SGH101
to
GE750 4110-SGH101 to
6130-SGH101
GE750 6130-SGH101
4131-SGH101
Adjust Phase
[p.u/A]
Time Dial
Phase
Phase
Curve
Adjust Earth
[p.u/A]
51=0.6/480
51=0.14
51=IEC Curve
A
50N=
51=0.6/480
to
51=0.6/480
GE T60
6130-SGH101_4110TXR101 51=1.03/824
MV
GE T60
6130-CSW101_4110TXR101 51=0.34/136
HV
SE-330
4110-TXR101_HV
-
51=0.14
51=IEC Curve
A
51=0.25
51=IEC Curve
B
51=0.17
51=0.22
-
0.02/16
50N=
0.02/16
50N=
51=IEC
0.02/16
50N=
CurveB
0.02/16
51=IEC
51N=
CurveB
-
0.05/20
Time Dial
Earth
50N=0.12
50N=0.12
50N=0.22
50N=
Definite
50N=
Definite
50N=
Definite
50N=
50N=0.35
Definite
51N=IEC
51N=0.01
GF TRIP LEVEL GF TRIP LEVEL
[0.2/5]
Earth
Curve
[0.5s]
Curve A
Definite
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY – ANNEX D:
ELECTRICAL PROTECTION MODEL
21466447-D-0000-EL-MEM-00003-V0
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
21466447-D-0000-EL-MEM-00003-V0
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS
NORTE MINE)
PROTECTION COORDINATION STUDY – ANNEX E:
SINGLE LINE DIAGRAMS OF PROTECTION
COORDINATION ROUTES
21466447-D-0000-EL-MEM-00003-V1
1
ELECTRICAL STUDIES FOR THE LNCMOP PERU PROJECT (LAGUNAS NORTE MINE)
21466447-D-0000-EL-MEM-00003-V1
1
ELECTRICAL ROOM
4110-RME101
22.9 kV FROM NEW SUBSTATION
3145MCL101-P
4-(3-1/C 750 MCM)+1/C 1/0 AWG (G)
MOTOR CONTROL CENTER
3145-MCL101
21466447-D-6130-EL-DWG-20000
C1
4110-US101
3x1600 AF
3x1600 AT
ELECTRICAL ROOM
4110XTR102-H
3-1/C 500 MCM + SHD
UNIT SUBSTATION
4110-XTR102
2.5 MVA ONAN
22.9 / 0.48 kV
C25
CB
3x300A
CB
3x400 AF
3x250 AT
63
26
49
MEDIUM VOLTAGE SWITCHGEAR
TRIP
ALARMS
RELAY GE T60
XTR102 22.9kV
TRANSFORMER
480 V, 1600 A, 3Ø + N, 65 kA, 60 Hz
C3
4110SGH101-H
4110-RME101
71
4110-SGH101
10/ 5 A
C20
5 VA
SWITCHBOARD
24000/ 120 V
4110-SGL101
2
3x3200 AF
3x3200 AT
SS
VFD
480 V, 3200 A, 65 kA, 3Ø+N, 60 Hz
C1
G
C2
CB
3x2000 AF
3x1600 AT
4125PPP160AM-P
3-1/C 4/0 AWG+(G) SHD
3140CVB115M-P
100
hp
C3
CB
3x2000 AF
3x1600 AT
GE 750
CB
3x1600 AF
3x800 AT
G
22.9 kV, 1250 A, 31.5 kA, 3Ø, 60 Hz
C2
24000/120 V
3145MCL101-P
4-(3-1/C 750 MCM)
ELECTRICAL ROOM
4110ATL101-P1
2-(3-1/C 750 MCM)
4110MCL101-P
5-(3-1/C 750 MCM)
100/ 5A
C100
25 VA
4110ATL101-P2
-(3-1/C 500 MCM)
+1/C 1/0 AWG (G)
TRANSFER PANEL
4110-MCL101
ELECTRICAL ROOM
4110-RME101
10/ 5A
C20
5 VA
4110-ATL101
4125MCL101-P
2-(3-1/C 350 kCMIL)+
1/C 2 (G) AWG
CB
3x1200 AF
3x800 AT
4125-MCL101
E
CB
3x1200 AF
3x800 AT
480 V, 1600 A, 3Ø+N, 65 kA, 60 Hz
C11
CB
3x250 AF
3x200 AT
MCP
150
(750-2500)
CB
3x400 AF
3x250 AT
50G
480 V, 800 A, 65 kA, 3Ø+N, 60 Hz
4x800 AF
4x600 AT
C28
C1
CB
3x1200 AF
3x800 AT
480 V, 800 A, 3Ø+N, 65 kA, 60 Hz
C6
C1
MCP
150
(450-1500)
50G
OL
CB
3x150 AF
3x150 AT
OL
4110-LUB125A-M
HIGH PRESSURE PUMP A
BALL MILL'S LUBE SYSTEM
4110PPS050M-P
SAFETY
SWITCH
3x150A
60
hp
G
4110COM020A-P
4110LUB125AM-P
4110BRC055-P
G
150
hp
87hp
4110-SS-BRC055
BRIDGE CRANE
SAFETY
SWITCH PANEL
4110-COM020A
COMPRESSOR A, PLANT AIR
ON
ON
ON
4110XFL101-P
4110-XFL101
480 / 400-230 V
3Ø, 60 Hz
100 kVA
4110LPA101-P
60
hp
4110-PPS050-M
SUMP PUMP N°1 MILLING AREA
ON
G
G
4125MCL101-P
2-(3-1/C 750 MCM)
50G
4110-LPA101
PANELBOARD TO
LIGHTING SYSTEM AND
RECEPTACLES
TO SCADA
GE T60
TRIP
EMERGENCY MOTOR CONTROL CENTER
3x1600 AF
3x1600 AT
52
TRIP
4110-RME102
MOTOR CONTROL CENTER
C1
2
800 A
4125-PPP160A-M
PUMP A- GRINDING
THICKENER
BOMBA A- ESPESADOR
DE MOLIENDA
ON
ON
52 1250 A
TRIP
125
hp
3140-CVB115-M
CONVEYOR, BELT TO
SCRUBBER
800/ 5A
C100
25 VA
TO SCADA
ALARMS
4110US101-H
1-(3-1/C 4/0 AWG)
+ 1/C 2 AWG (G)+SHD
22.9 kV FROM NEW SUBSTATION
ELECTRICAL ROOM
ELECTRICAL ROOM
4110-RME101
4110-RME101
FROM MEDIUM VOLTAGE SWITCHGEAR
4110-SGM101
21466447-D-4110-EL-DWG-20007
21466447-D-6130-EL-DWG-20000
C1
MEDIUM VOLTAGE SWITCHGEAR
ELECTRICAL ROOM
4110-SGM101
4110-RME101
4110SGH101-H
MEDIUM VOLTAGE SWITCHGEAR
10/ 5 A
C20
5 VA
4200/ 120 V
4110-VFD100A-M
2-(3-1/C 750MCM) +SHD
FROM VARIABLE FRECUENCY DRIVE
SYNCHRONOUS TRANSFER SYSTEM
2500/ 5 A
C100
25 VA
2
410-VFD100
4110-SGH101
4110-VFD100A
TO RELAY XTR101
GR T60
24000/ 120 V
2
2500/ 5 A
C100
25 VA
TO SCADA
10/ 5 A
C20
5 VA
(SPECIFIC NOTE 4)
800/ 5A
C100
25 VA
TO SCADA
GE 845
1200 A 52
52
TRIP
GE 750
3000 A
BARRA VFD 4.16 kV
4.16 kV, 3000 A, 40 kA, 3Ø, 60 Hz
C1
4200/
120 V
1200 A 52
C2
C3
22.9 kV, 1250 A, 31.5 kA, 3Ø, 60 Hz
C1
2
1200 A 52
4.16 KV, 3000 A, 50 kA, 3Ø, 60 HZ
24000/ 120 V2
3000 A
4200
120 V
52
TRIP
TRIP
1200 A 52
1200 A 52
3000/ 5A
C100
25 VA
1200 A 52
400 A
100/ 5A
C100
25 VA
TO SCADA
10/ 5A
C20
5VA
10/ 5A
C20
5VA
1200/ 5 A
C200
50 VA
1200/ 5 A
C200
50 VA
50/ 5A
C20
5 VA
50/ 5A
C20
5 VA
GE 869
Feed
220VAC
500/ 5A
C100
25 VA
TO SCADA
10/ 5A
C20
5VA
GE 845
GE 845
Feed
220VAC
50/ 5A
C20
5 VA
4110VFD130A-M
3-1/C 2/0 AWG + SHD
4110-VFD100A-M
2-(3-1/C 750MCM) +SHD
4110-VFD130A
4110XTR101-H
1-(3-1/C 350 MCM) + 1/C 2 AWG (G)+SHD
4110-VFD130B
TRANSFORMER
4110-XTR101
10-12 MVA
ONAN/ONAF
22.9 / 4.16 kV
4110-VFD100A
21466447-D-4110-EL-DWG-20005
3145MIL120-M
4110MIL125-M
MV-VFD
50/ 5A
C100
25 VA
4110-BSL101
BUS DUCT
MOTOR HEATER
VIBRATION SENSOR
RTD WINDING
TEMPERATURE
3000 A
SBY
RTD BEARING
TEMPERATURE
4110PPP130BM-M
3-1/C 2/0 AWG + SHD
4110-PPP130B-M
PUMP B, FEED CYCLONE
LOCAL STATION
CONTROL
MOTOR HEATER
VIBRATION SENSOR
RTD WINDING
TEMPERATURE
4110PPP130AM-M
3-1/C 2/0 AWG + SHD
RTD BEARING
TEMPERATURE
LOCAL STATION
CONTROL
TO SYNCHRONOUS TRANSFER SYSTEM
250
hp
ON
4110VFD100A-M
2-(3-1/C 750MCM+SHD)
250
hp
4110-PPP130A-M
PUMP A, FEED CYCLONE
MOTOR HEATER
VIBRATION SENSOR
RTD WINDING
TEMPERATURE
RTD BEARING
TEMPERATURE
3145-MIL120
SCRUBBER
MOTOR HEATER
VIBRATION SENSOR
RTD WINDING
TEMPERATURE
63
MV-VFD
4000
hp
RTD BEARING
TEMPERATURE
TRIP
4110VFD130B-M
3-1/C 2/0 AWG + SHD
TO SYNCHRONOUS TRANSFER SYSTEM
4110-MIL125
BALL MILL N° 1
GE T60
ALARMS
4110-VFD100
4110-VFD100A
SE 330
TO CT XTR 4.16kV
2500/5
4110VFD100-M
2-(3-1/C 750MCM)+SHD
4000
hp
TO SCADA
10/ 5A
C20
5 VA
GE 869
1200/ 5 A
C200
50 VA
52
TRIP
100/ 5A
C100
25 VA
TO SCADA
GE 845
GE 869
800 A
TRIP
400 A
VARIABLE FREQUENCY
DRIVE
52 1250 A
TRIP
26
49
71
22.9 kV FROM MV SWITCHGEAR 6130-SGH101
IN NEW ELECTRICAL SUBSTATION
UNIT SUBSTATION
21466447-D-6130-EL-DWG-20005
4131-US101
4131SGH101-H
3-1/C 250kCMIL+SHD
MV SWITCHGEAR (GIS)
4131-RME101
TRANSFER PANEL
Un= 27 kV
Umcov= 22 kV
36 kV
4131-SGH101
4131ATL101-P
4-(3-1/C 600kCMIL+1/C (G) 2/0AWG
ELECTRICAL ROOM
4131-ATL101
22.9 kV, 1250 A, 31.5 kA, 3Ø, 60 Hz
3X2000 AF
3X1600 AT
C1
480 V, 2000 A, 65 kA, 3Ø + N, 60 Hz
630 A
31.5 kA
G
10/ 5A
C20
5 VA
G
TO SCADA
(ESPECIFIC NOTE 5)
86
TRIP
ELECTRICAL ROOM
3X2000 AF
3X1600 AT
52
200/ 5A
CL 5P20
20 VA
C1
24000/ 120 V
3
3X2000 AF
3X1600 AT
E
50
51
27
49
125 Vdc
EXTERNAL SOURCE
50G 51G
4131MCL102-P
4-(3-1/C 600 kCMIL + 1/C 2/0 (G) AWG)
TRIP
ALARMS
4131-RME101
LOW VOLTAGE MOTOR CONTROL CENTER
LOW VOLTAGE MOTOR CONTROL CENTER - CRITICAL LOADS
4131-MCL102
4131-MCL101
3x2000 AF
3x1600 AT
TRANSFORMER
3X2500 AF
3X2000 AT
63
4131-XTR101
2.5 MVA ONAN
22.9 /0.48 kV, 3Ø, 60 Hz
26
49
71
480 V, 2000 A, 3Ø + N, 65 kA
480 V, 2500 A, 3Ø + N, 65 kA, 60 Hz
C26
CB
400 AF
200 AT
4000 A, 65 kA
SS
50G
3X4000 AF
3X3500 AT
G
4131XFL101-P
VFD
480 V, 4000 A, 65 kA, 3Ø + N, 60 Hz
3X2000 AF
3X1600 AT
G
75 HP
265 hp
4131-COM120A
CIL COMPRESSOR A
ON
4131-COM020A
PLANT AIR
COMPRESSOR A
BUS DUCT 2500 A
4131-BSL101
4131-AGI120
CIL AGITATOR N° 1
ON
4131DPA101-P
3-1/C 350kCMIL
+ 1/C 2/0AWG (G)
4131COM020AM-P
3-1/C 250 kCMIL
+1/C 2/0 (G) AWG
4131COM120AM-P
2 - (3-1/C 350 kCMIL
+1/C 4/0 (G)) AWG
C2
125 hp
MOTOR HEATER
RTD WINDING TEMPERATURE
ON
4131-PPP155A
CIL RESIDUE, PUMP A
250 hp
RTD BEARING TEMPERATURE
4131-PPP155AM-P
2-3/C 300 kCMIL+
3/C 10 AWG+(G)
C1
3X2500 AF
3X2000 AT
50G
50G
4131AGI120M-P
3-1/C 4/0 AWG +
1/C 2 AWG (G)
4131-VFD155A
LV SWITCHGEAR
480-277 V
4131-SGL101
50G
G
BUS DUCT
4131-XFL101
480/400-230V
3Ø, 60HZ
75 kVA
3-1/C 350kCMIL
+ 1/C 4/0 (G)AWG
CB
600 AF
500 AT
CB
CB
400 AF
200 AT
4131-CNH005M-P
C24
CB
3x400 AF
3x300 AT
CB
3x250 AF
3x150 AT
3-1/C 4/0 AWG
+ 1/C 2 AWG (G)
C17
C20
C10
C1
200 hp
4131-CNH005
TOWER CRANE
4131-DPD101
DISTRIBUTION PANEL GRUA TORRE
ON
BOARD
SS.AA. 400-230 Vac
22.9 kV FROM NEW SUBSTATION
21466447-D-6130-EL-DWG-20000
C3
ELECTRICAL ROOM
4132SGH101-H
4132-RME101
MEDIUM VOLTAGE SWITCHGEAR (GIS)
4132-SGH101
ELECTRICAL ROOM
4132-RME101
MOTOR CONTROL CENTER
Un= 27 kV
Umcov= 22 kV
4132-MCL101
24000 / 120 V 30 VA, 3P
3
3
3x2000 A
3
TRIP
UNIT SUBESTATION
50G
4132-US101
50/ 5 A
5P20
10 VA
TRANSFORMER
63
4132-XTR101
2500 kVA
22.9 / 0.48 kV
800/ 5A
5P20
15 VA
26
49
480 V, 2000 A, 3Ø+N, 65 kA, 60 Hz
C6
71
C33
ALARMS
CB
3x300 A
CB
3x400 AF
3x250 AT
GE 750
TRIP
52 1250 A
SWITCHGEAR
3x3200 A
50G
4132-SGL101
22.9 kV, 1250 A, 31 kA, 3Ø, 60 Hz
C1
C1 480 V, 3200 A, 65 kA, 3Ø+N, 60 Hz
G
TRIP
1250 A
4132VFD160A-M
3/C 4/0 AWG +(G)
3x2000 A
52
10/ 5A
5P20
15 VA
TO SCADA
4132MCL101-P
6(3-1/C 500 MCM)+1/C 1/0 AWG (G)
TRIP
4132XTR101-H
1-(3-1/C 4/0 AWG) +SHD
4132COM020-P
800/ 5A
5P20
15 VA
G
4132PPP160AM-P
3/C 4/0 AWG + (G)
GE T60
1-(3-1/C 500MCM)
+ 1/C 1/0 AWG (G)
VFD
100
hp
250
hp
4132-PPP160A-M
PUMP N° 1, FILTRATE
CIL RESIDUE
ON
4132-COM020
COMPRESSOR N° 1
ON
22.9 kV FROM NEW SUBSTATION
21466447-D-6130-EL-DWG-20000
C3
480 V, 3Ø, 60 Hz
NEUTRAL RESIST.: 5 A, CONT.
800 kW AT 4100 m a. s. l.
GENERATOR
ELECTRICAL ROOM
4132-RME101
4132SGH101-H
ELECTRICAL ROOM
MEDIUM VOLTAGE SWITCHGEAR (GIS)
4132ATL101-P1
3(3-1/C 500 MCM) +
1/C 1/0 AWG (G)
4132MCL102-P
5(3-1/C 500 MCM) +
1/C 1/0 AWG (G)
4132-RME101
4132ATL101-P2
3(3-1/C 500 MCM) +
1/C 1/0 AWG (G)
4132-SGH101
3x1200 A
TRANSFER PANEL
Un= 27 kV
Umcov= 22 kV
4132-ATL101
24000 / 120 V 30 VA, 3P
3
3
4123MCL102-P
5-(3-1/C 500 MCM)
+ 1/C 1/0 AWG (G)
UNIT SUBESTATION
3
TRIP
50/ 5 A
5P20
10 VA
4123-MCL102
3x1200 A
G
TRANSFORMER
63
4132-XTR102
2500 kVA
22.9 / 0.48 kV
26
49
G
71
ALARMS
3x2000 A
800/ 5A
5P20
15 VA
4132MCL103-P
3(3-1/C 500 MCM) +
1/C 1/0 AWG (G)
50G
SWITCHGEAR
GE 750
480 V, 2000 A,
3Ø+N, 65 kA, 60 Hz
3x3200 A
4132-SGL102
TRIP
3x1200 A
480 V, 1200 A, 65 kA, 3F, 60 Hz
MOTOR CONTROL CENTER
4132-US102
3x1200 A
52 1250 A
C12
C5
480 V, 3200 A, 65 kA, 3Ø+N, 60 Hz
4123-MCL103
C1
C2
22.9 kV, 1250 A, 31 kA, 3Ø, 60 Hz
C2
3x2000 A
EMERGENCY MOTOR CONTROL CENTER
CB
3x800 AF
3x600 AT
CB
3x800 AF
3x600 AT
3x1200 A
3x1200 A
TRIP
1250 A
50G
52
50G
50G
G
480 V, 1200 A, 3Ø+N, 65 kA, 60 Hz
C3
GE T60
800/ 5A
5P20
15 VA
C4
TO SCADA
G
CB
3x400 A
10/ 5A
5P20
15 VA
CB
3x400 A
4132-AGI115-M
FILTER FEED
TANK N°1 AGITATOR
ON
100
hp
4132-AGI116-M
FILTER FEED
TANK N°2 AGITATOR
ON
4132-AGI116M-HE
100
hp
SS
4132AGI116M-P
2x3/C 2/0 AWG
+ (G)
4132-HYS125
HYDRAULIC UNIT
FILTER N° 1
ON
SS
4132-AGI115M-HE
4132-HYS145
HYDRAULIC UNIT
FILTER N°4
ON
200
hp
G
4132AGI115M-P
2x3/C 2/0 AWG
+ (G)
200
hp
4132HYS125-P
1-(3-1/C 500MCM)
+ 1/C 1/0AWG (G)
4132XTR102-H
1(3-1/C 4/0 AWG) +
1/C 2 AWG (G) + SHD
4132HYS145-P
1-(3-1/C 500MCM)
+ 1/C 1/0AWG (G)
TRIP
22.9 kV FROM NEW SUBSTATION
ELECTRICAL ROOM
21466447-D-6130-EL-DWG-20000
C3
4132-RME101
MEDIUM VOLTAGE SWITCHGEAR 4.16 kV
4132-SGM101
ELECTRICAL ROOM
4132SGH101-H
4200 / 120 V
3
3
3Ø, 30 VA
4132-RME101
MEDIUM VOLTAGE SWITCHGEAR (GIS)
3
4132-SGH101
Un= 27 kV
Umcov= 22 kV
50/ 5 A
5P20
10 VA
400/ 5 A
5P20
15 VA
TO SCADA
(SPECIFIC NOTE 5)
24000 / 120 V 30 VA, 3P
3
3
GE 845
3
52 1200 A
TRIP
50/ 5 A
5P20
10 VA
4.16 kV, 1200 A, 40 kA, 3Ø, 60 Hz
C1
800/ 5A
5P20
15 VA
C7
GE 750
52 1250 A
TRIP
22.9 kV, 1250 A, 31 kA, 3Ø, 60 Hz
C3
TRIP
1250 A
52
4132VFD120A-M
3/C 2 AWG + (G)
4132VFD125-M
3/C 2 AWG + (G)
86
GE T60
800/ 5A
5P20
15 VA
50
51
TO CONTROL SYSTEM
(SPECIFIC NOTE 4)
TO SCADA
27
10/ 5A
5P20
15 VA
TO CONTROL SYSTEM
(SPECIFIC NOTE 4)
49
50G 51G
TRIP
4132-VFD125
4132-VFD120A
4132XTR102-H
1(3-1/C 4/0 AWG) +
1/C 2 AWG (G) + SHD
MV-VFD
MV-VFD
MOTOR HEATER
VIBRATION SENSOR
LOCAL STATION CONTROL
MOTOR HEATER
VIBRATION SENSOR
300
hp
RTD WINDING
TEMPERATURE
LOCAL STATION
CONTROL
250
hp
RTD WINDING
TEMPERATURE
5A
55.4 Ω
CONT.
RTD BEARING
TEMPERATURE
51G
ON
ALARMS
4132-PPP120A-M
FILTER CLOTH WASH PUMP N° A
71
RTD BEARING
TEMPERATURE
49
ON
SE-330
26
4132-PPP125-M
FILTER FEED PUMP N° 1
63
3/C 2/0 AWG + (G)
+ SHD
4132PPP125M-M
3/C 2/0 AWG + (G)
+ SHD
TRANSFORMER
4132-XTR103
2500 kVA
22.9 / 4.16 kV
4132PPP120AM-M
TRIP
3
ELECTRICAL ROOM
4110SGH101-H
4110-RME101
MEDIUM VOLTAGE SWITCHGEAR
4110-SGH101
10/ 5 A
C20
5 VA
24000/ 120 V
√
√
√
2
800/ 5A
C100
25 VA
GE 750
52 1250 A
TRIP
24
26
49
63
71
22.9 kV, 1250 A, 31.5 kA, 3Ø, 60 Hz
ELECTRICAL ROOM
4132SGH101-H
4132-RME101
MEDIUM VOLTAGE SWITCHGEAR (GIS)
4132-SGH101
6130SGH101-H
Un= 27 kV
Umcov= 22 kV
24000 / 120 V 30 VA, 3P
3
3
3
50/ 5 A
5P20
10 VA
800/ 5A
5P20
15 VA
GE 750
52 1250 A
TRIP
22.9 kV, 1250 A, 31 kA, 3Ø, 60 Hz
UNIT SUBSTATION
4131-US101
4131SGH101
MV SWITCHGEAR (GIS)
Un= 27 kV
Umcov= 22 kV
36 kV
4131-SGH101
22.9 kV, 1250 A, 31.5 kA, 3Ø, 60 Hz
C1
3
630 A
31.5 kA
52
TRIP
100/ 5A
C100
25 VA
10/ 5A
C20
5 VA
24000/ 120 V
TO SCADA
(ESPECIFIC NOTE 5)
125 Vdc
EXTERNAL SOURCE
4131SGH101-H