PROTECTION RELAYS
Over Current Relays
Page
Types - MC31A, MC61A, MC61C
5
Current Sensing Relays
Page
Types - MC11A, ME11, SCKIS
Technical Data
5/2
Technical Data
5/5
Wiring Diagram
5/3
Wiring Diagram
5/6
Ordering Information
5/4
Ordering Information
5/7
Neutral Displacement, Generator Load
Sharing, U/V or Over Voltage
Page
Types - MND11, RRS, MV11
Secondary Relays
Page
Types - TCS01, MTM01, PTF03
Technical Data
5/8
Technical Data
5/11
Wiring Diagram
5/9
Wiring Diagram
5/12
Ordering Information
5/13
Ordering Information
Power Factor Control or Monitoring Relays
5/10
Page
Types - PFC8, PFC14, MVP01
Motor Protection Relay
Page
Type MM30
Technical Data
5/14
Technical Data
5/17
Wiring Diagram
5/15
Wiring Diagram
5/18
Ordering Information
5/16
Ordering Information
5/19
PROTECTION RELAYS
Generator Protection Relays
Page
Types - IM3GV, IM30G, MD32G
Synchronising Relay
Page
Types - SPM21, SCM21
Technical Data
5/20
Technical Data
5/23
Wiring Diagram
5/21
Wiring Diagram
5/24
Ordering Information
5/22
Ordering Information
5/25
Voltage / Frequency Relay,
Direction O/C, E/F Relay
Page
Types - UFD34, UM30A, DM30
Transformer Protection Relay
Capacitor Bank Protection Relay
Page
Types - MD32T, IM30T, DIN30C
Technical Data
5/26
Technical Data
5/29
Wiring Diagram
5/27
Wiring Diagram
5/30
Ordering Information
5/28
Ordering Information
5/31
Control and Supervision Relays
Page
Types - MW33, MU30
Reverse Power Relay
Page
Type MRP11
Technical Data
5/32
Technical Data
5/35
Wiring Diagram
5/33
Wiring Diagram
5/36
Ordering Information
5/34
Ordering Information
5/36
5
PROTECTION RELAYS
Other Relays
Page
Types - MX7/5, MC-R, REX, CPSC, MSCOM
Ordering Information
5
5/37
PRODUCT DESIGN STANDARDS
Reference standards
:
IEC 60255, IEC 61000
Dielectric test
:
IS 3231 / IEC 60255-5
Impulse test
:
IS 8686 / IEC 60255-5
HF disturbance test
:
IS 8686 / IEC 60255-22-1
Electrostatic discharge test
:
IEC 61000-4-2
Electrical fast transient
:
IEC 61000-4-4
Radiated electro magnetic field test
:
IEC 61000-4-3
Surge immunity
:
IEC 61000-4-5
Ring wave test
:
IEC 61000-4-12
Voltage dips & interruption test
:
IEC 61000-4-11
Power frequency magnetic test
:
IEC 61000-4-8
IS3231, IS8686
5
TIME - CURRENT CHARACTERISTICS (AT TMS=1)
For Trip time at TMS other than 1
Trip time = (Trip time at TMS=1) x TMS OR 50msec
whichever is more
A : Normal Inverse 3.0 Sec.
B : Normal Inverse 1.3 Sec.
C : Very Inverse
D : Extreme Inverse
BACK
5/1
TECHNICAL DATA
THREE PHASE OVER CURRENT AND EARTH FAULT RELAYS
✦
✦
✦
✦
✦
✦
Display of Currents, settings, Trip data & Trip history for analysis & trouble shooting.
Built in Self Supervision & Self testing feature to ensure continuous reliability.
Separate Indication for power ON & Programming mode or relay fault.
Separate fault indication.
In MC61C - Communication with Computer & breaker control through RS 485 Port.
Four User Programmable Output relays.
Model
MC31A
MC61A
MC61C
Description
3 Phase O/C + E/F
3 Phase O/C + E/F + Highset
3 Phase O/C + E/F + Highset
5
Communication and
breaker control
Device Code
51 RYBN
50/51 RYBN
50/51 RYBN
Design
Numerical Relay
Numerical Relay
Numerical Relay
Functions Available
Lowset O/C
-ls
Lowset O/C
-ls
Lowset O/C
-ls
Lowset E/F
-Os
Highset O/C
-lhs
Highset O/C
-lhs
Lowset E/F
-Os
Lowset E/F
-Os
Highset E/F
-Ohs
Highset E/F
-Ohs
Settings
Other Features
Burden on CT
O/C ls = 20-200% Step 5%
O/C ls = 20-200% Step 5%
O/C ls = 20-200% Step 5%
E/F Os = 5-80% Step 5%
E/F Os = 5-80% Step 5%
E/F Os = 5-80% Step 5%
HS O/C = (0.2 to 40) x In step of -
HS O/C = (0.2 to 40) x In step of -
HS O/C = (0.2 to 40) x In step of -
0.2 In or disable
0.2 In or disable
0.2 In or disable
HS E/F = (0.1 to 20) x On step of -
HS E/F = (0.1 to 20) x On step of -
HS E/F = (0.1 to 20) x On step of -
0.1 On or disable
0.1 On or disable
0.1 On or disable
Time Characteristics available -
Time Characteristics available -
Time Characteristics available -
NI, VI, EI, or Definite Time
NI, VI, EI, or Definite Time
NI, VI, EI, or Definite Time
TMS 0.1 - 1.6 Step 0.05
TMS 0.1 - 1.6 Step 0.05
TMS 0.1 - 1.6 Step 0.05
Site selectable Trip time Char.
Site selectable Trip time Char.
HS delay:0.1-2 Sec step 0.01 Sec. or Inst.
Highset can be disabled
RS 485 Communication
Display of Currents, Trip count
Display of Currents, Trip count
Breaker control
Self supervision feature
Self supervision feature
Auto doubling of highset, Relay co-ordination
0.25 VA on CT/Phase
0.25 VA on CT/Phase
0.25 VA on CT/Phase
Burden on PT
Not applicable
Not applicable
Not applicable
Operating temp
0° to 60° C
0° to 60° C
0° to 60° C
Weight
< 2kg
< 2kg
< 2kg
Burden on Auxiliary supply
10 VA
10 VA
10 VA
Output Contact
1 N/O contact for self suprvn
1 N/O contact for self suprvn
1 N/O contact for self suprvn
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
121 x 158 x 224
Panel Cutout
113 x 142
113 x 142
113 x 142
5/2
BACK
WIRING DIAGRAM
THREE PHASE OVER CURRENT AND EARTH FAULT RELAYS
5
MC31A
MC61A
MC61C
BACK
5/3
ORDERING INFORMATION
THREE PHASE OVER CURRENT AND EARTH FAULT RELAYS
Model
MC31A
Description
3 Phase Over current and Earth Fault Relay
Catalogue No.
MC31A
00
Catalogue No. Selection Guide for MC31A
5
Model
MC61A
Description
3 Phase Over current and Earth Fault Relay
Catalogue No.
MC61A
00
Catalogue No. Selection Guide for MC61A
Model
MC61C
Description
3 Phase Over current and Earth Fault Relay
Catalogue No.
MC61C
00
Catalogue No. Selection Guide for MC61C
5/4
BACK
TECHNICAL DATA
CURRENT SENSING RELAYS
Single Phase Over current / Earth fault Relay
Sensitive E/F Relay and Instantaneous Current Relay
✦
✦
✦
✦
Easy Setting through front panel DIP Switches.
Indication for Power ON and trip status.
Test feature - helps maintenance.
Compact, Light weight helps in reducing panel size & thickness.
Model
MC11A
ME11A
SC14S
5
Description
1 Ph O/C or E/F
1 Ph Sensitive E/F
Instantaneous current relay
Device Code
50/51 or 50N/51N
50N/51N
87 N / 64 R
Design
Microcontroller Based
Microcontroller Based
Static
Functions Available
Lowset O/C
-ls
Lowset S E/F
-ls
Highset O/C
-lhs
Highset S E/F
-lhs
Settings
Lowset E/F
-Os
Highset E/F
-ls
O/C ls = 50-200% Step 10% OR
S E/F = 1-16% step 1%
E/F ls = 10-40% Step 2% OR
HS S E/F = (2-16) xls
ls = 10-40% step 5%
E/F ls = 20-80% Step 4%
in steps of 2 ls
OR 20-80% step 10%
Time Characteristics available-
Time Characteristics available-
HS O/C = (2-16) xls step 2 ls
HS E/F = (2-16) xls step 2 ls
Time Characteristics available-
Other Features
NI, VI, EI, or Definite Time
NI, VI, EI, or Definite Time
Instantaneous (25ms) OR
3 ranges of def Time (1, 10, 100)
3 ranges of def Time (1, 10, 100)
time delayed 100ms / 200 ms
TMS : 0.1 - 1.6 Step 0.1
TMS : 0.1 - 1.6 Step 0.1
Self Powered
Site selectable Trip time Char.
Site selectable Trip time Char.
Relay testing Possible by ext.24V Supply
Highset can be disabled
Highset can be disabled
Flag indication / LED indication
Harmonic rejection
Burden on CT
0.25 VA on CT
0.25 VA on CT
6 VA
Burden on PT
Not applicable
Not applicable
Not applicable
Operating temp
0° to 55° C
0° to 55° C
0° to 55° C
Weight
< 1.5kg
< 1.5kg
< 1.5kg
5.5 VA
5.5 VA
Burden on Auxiliary supply
Not applicable
Output Contact
2 C/O Contacts (S/R)
2 C/O Contacts (S/R)
2 C/O Contacts (S/R)
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
71 x 158 x 224
71 x 158 x 224
71 x 158 x 224
Panel Cutout
62 x 142
62 x 142
62 x 142
BACK
5/5
WIRING DIAGRAM
CURRENT SENSING RELAYS
5
MC11A
ME11A
SC14S
5/6
BACK
ORDERING INFORMATION
CURRENT SENSING RELAYS
Model
MC11A
Description
Single Pole Over current or Earth Fault Relay
Catalogue No.
MC11A
00
Catalogue No. Selection Guide for MC11A
5
Model
ME11A
Description
Single Pole Sensitive Earth Fault Relay
Catalogue No.
ME11A
00
Catalogue No. Selection Guide for ME11A
Model
SC14S
Description
Instantaneous Earth Fault Relay
Catalogue No.
SC14S
00
Catalogue No. Selection Guide for SC14S
BACK
5/7
TECHNICAL DATA
NEUTRAL DISPLACEMENT RELAY, GENERATOR LOAD
SHARING RELAY, UNDER VOLTAGE OR OVER VOLTAGE RELAY
✦
✦
✦
✦
Easy Setting through front panel DIP Switches.
LED indication for Power ON and trip status.
Test feature - helps maintenance.
Compact, Light weight helps in reducing panel size & thickness.
Model
MND11
RRS
MV11
Description
Neutral Displacement
Generator Load Sharing
1 Ph U/V OR O/V
Device Code
59 Vo
95
27 OR 59
Design
Microcontroller Based
Static
Microcontroller Based
Functions Available
Voltage relay for E/F Protection
Active / Reactive power selection
Lowset U/V
-Vs
of generator earthed thro’
Over Power alarm
Highset U/V
-Vhs OR
neutral earthing transformer
Load Sharing
Lowset O/V
-Vs
Frequency control
Highset O/V
-Vhs
5
Settings
Other Features
Fault voltage Vs-
U/V Vs = 95-20% step 5%
2% - 32% of Vn step 2%
U/V Vhs = 90-20% step 10%
Alarm voltage Vis-
O/V Vs = 105-180% step 5%
2% - 32% of Vn step 2%
O/V Vhs = 110-180% step 10%
Time Characteristics available-
Time Characteristics available-
Inverse time or Definite time
Inverse time or Definite time
TMS : 0.1 - 1.6 Step 0.1
TMS : 0.1 - 1.6 Step 0.1
LED indication for power ON
LED indication
Site selectable U/V OR O/V
time characteristics, trip
Site selectable Trip time char.
Test feature
Highset can be disabled
Third harmonics rejection 26db
Burden on PT
0.25 VA
5 VA
Burden on CT
Not applicable
Operating temp
0° to 55° C
0° to 55° C
0° to 55° C
Weight
< 1.5kg
< 1.5kg
< 1.5kg
5.5 VA
8.5 VA
5.5 VA
Burden on Auxiliary supply
5 VA
0.075 VA on PT
Not applicable
Output Contact
1No+2 C/O Contacts (S/R)
3 N/O
2 C/O Contacts (S/R)
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
71 x 158 x 224
71 x 158 x 224
71 x 158 x 224
Panel Cutout
62 x 142
62 x 142
62 x 142
5/8
BACK
WIRING DIAGRAM
NEUTRAL DISPLACEMENT RELAY, GENERATOR LOAD
SHARING RELAY, UNDER VOLTAGE OR OVER VOLTAGE RELAY
5
MND11
RRS
MV11
BACK
5/9
ORDERING INFORMATION
NEUTRAL DISPLACEMENT RELAY, GENERATOR LOAD
SHARING RELAY, UNDER VOLTAGE OR OVER VOLTAGE RELAY
Model
Description
Catalogue No.
MND11
Neutral Displacement Relay 20-110V
MND11A00000
MND11
Neutral Displacement Relay 88-264V
MND11B00000
RRS
Load Sharing Relay 20-110V
ESRRSAXX000
RRS
Load Sharing Relay 88-264V
ESRRSBXX000
MV11A
Single Phase Under Voltage or Over Voltage Relay
MV11A
5
00
00
Catalogue No. Selection Guide for MV11A
5/10
BACK
TECHNICAL DATA
SECONDARY RELAYS
Trip Circuit Supervision Relay
Timer Relay and PT Fuse Failure Relay
✦
✦
✦
✦
✦
Easy Setting through front panel DIP Switches.
Indication for Power ON and trip status.
Test feature - helps maintenance.
Compact, Light weight helps in reducing panel size & thickness.
Low Power Burden
Model
TCS01
MTM01
PTF03
5
Description
Trip Circuit supervision
Timer Relay
PT Fuse Failure Relay
Device Code
95 ABC
2T
60
Design
Static
Microcontroller Based
Static
Functions Available
Post Close Supervision
Programmable as Delay on
3 Phase PT fuse failure
Pre Close Supervision
Pick up or Drop off
Rating
Not applicable
Not applicable
110V AC PT
Settings
Trip coil supply 110 - 220V AC
15 - 999 mS step 1 mS
Not applicable
OR 24 - 48 - 110 - 220V DC
1 - 9.99 S step 10mS
Operation time 500+/-100mS
10 - 99.9 S step 100mS
Reset time < 150 mS
100 - 999 S step 1S
Same Relay for all Rating
Password protection available
LED Indication for each phase
Trip supply U/V indication
Contacts programmable
Relay trip status
CB ON/OFF status indication
as S/R or H/R
Other Features
Operation time
7mS
Self powered
High speed operation
Burden on CT
Not applicable
Not applicable
Not applicable
Burden on PT
Not applicable
Not applicable
<0.5 VA per phase on PT
Operating temp
0° to 55° C
0° to 55° C
0° to 55° C
Weight
< 1.5kg
< 1.5kg
< 1.5kg
Burden on Auxiliary supply
10 VA
6 VA
Not applicable
Output Contacts
2 C/O Contacts (S/R)
2 N/O + 2 N/C Per timer
2 C/O Contacts (S/R)
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
71 x 158 x 224
71 x 158 x 224
71 x 158 x 224
Panel Cutout
62 x 142
62 x 142
62 x 142
BACK
5/11
WIRING DIAGRAM
SECONDARY RELAYS
5
TCS01
MTMO1
PTFO3
5/12
BACK
ORDERING INFORMATION
SECONDARY RELAYS
Model
Description
Catalogue No.
TCS01
Trip Circuit Supervision Relay 20-110V AC/DC
MCS01A00000
TCS01
Trip Circuit Supervision Relay 80-264V AC/DC
MCS01B00000
MTM01A
Timer Relay 20-110V AC/DC
MTM01A00000
MTM01B
Timer Relay 80-264V AC/DC
MTM01B00000
PTF03
PT Fuse Failure Relay
MTF03X00000
5
BACK
5/13
TECHNICAL DATA
POWER FACTOR CONTROL AND MONITORING RELAYS
Power Factor Controller Relay and
Voltage & Power Factor Monitoring Relay
✦
✦
✦
✦
On line display of system PF.
Easy setting of power factor and C/K ratio from front panel.
LED indication for Alarm code, No. of Banks selected, PF status-lead / lag / unity, Auto / Manual mode.
DIP switches selection for No. of banks / time relay / bank ratios.
Model
PFC8
PFC14
MVP01
Description
Power Factor Controller
Power Factor Controller
Voltage / Power Factor monitor
Design
Microcontroller Based
Microcontroller Based
Microcontroller Based
Functions Available
Automatic PF controller
Automatic PF controller
U/V, O/V trip and leading PF alarm
Can control upto-
Can control upto-
8 Capacitor Banks
14 Capacitor Banks
5
Device Code
Settings
Other Features
PF : 0.8 Lag - 0.95 Lead
PF : 0.8 Lag - 0.95 Lead
U/V 75% to 90% step 1%
Switching time 10-20-40-60 S
Switching time 10-20-40-60 S
OV 105% to 120% step 1%
Threshold reactive current
Threshold reactive current
setting 0.5 - 1A reactive
setting 0.5 - 1A reactive
leading PF alarm time 20 Sec.
Capacitor Bank Selection-
Capacitor Bank Selection-
U/V - O/V trip time 10 Sec.
4-5-6-7-8 Banks
4-5-6-7-8-10-12-14 Banks
Display of PF Measurement
Display of PF Measurement
Display of Power Factor
Auto / Manual Selection
Auto / Manual Selection
LED indication for O/V trip, U/V trip,
Disconnection of Capacitors
Disconnection of Capacitors
PF status- lead / lag, lead PF alarm
during over voltage & Power failure
during over voltage & Power failure
1A / 5A field selectable
Alarm contact for under/over
Alarm contact for under/over
compensation, over voltage, under load
compensation, over voltage, under load
Burden on CT
0.3 VA
0.3 VA
Burden on PT
10 VA
10 VA
Operating temp
0° to 55° C
0° to 55° C
0° to 55° C
Weight
< 2kg
< 2kg
< 2kg
Output Contacts
8 NO
14 NO
2 N/O for lead PF (self reset)
15 VA
2 N/O for O/V (1 self/1 manual)
2 C/O for U/V (manual reset)
Dim W x H x D in mm
144 x 144 x 110
144 x 144 x 110
144 x 144 x 110
Panel Cutout
138 x 138
138 x 138
138 x 138
Auxiliary supply
415V AC
415V AC
110V AC
5/14
BACK
WIRING DIAGRAM
POWER FACTOR CONTROL & MONITORING RELAYS
5
PFC14
PFC8
MVP01
BACK
5/15
ORDERING INFORMATION
POWER FACTOR CONTROL & MONITORING RELAYS
Model
Description
Catalogue No.
PFC8
Eight Stage APFC Relay
MPF08XOOOOO
PFC14
Fourteen Stage APFC Relay
MPF14XOOOOO
MPV01
Voltage & PF Monitoring Relay
MVP01X00000
5
5/16
BACK
TECHNICAL DATA
MOTOR PROTECTION RELAY
✦
✦
✦
✦
✦
✦
Display of various parameters, trip count and trip data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature helps maintenance.
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCON” user friendly software.
Model
MM30
5
Description
Motor Protection
Device Code
49, 51lr, 46, 37, 50/51, 64, sTnO, LTR
Design
Numeric
Functions Available
Thermail O/L and Pre-alarm
Locked Rotor
Current unbalance, phase reversal, phase loss
Over Current
Earth Fault
Repeat and prolonged starts
Restart Inhibition
No load running
Blocking Function
Other Features
Auto setting
1 A or 5 A site selectable (Default 5 Amp)
Selectable motor time constant (1 - 60 min)
Display of parameters
Built in self supervision
RS485 PORT
Burden on CT
0.2 VA for 5A, 0.01 VA for 1A
Burden on PT
Not applicable
Operating temp
10° to 60° C
Weight
< 2kg
Burden on Auxiliary supply
8.5 VA
Output Contacts
4 C/O + 1 C/O for self supervision
Construction
Drawout
Dim W x H x D in mm
121 x 158 x 224
Panel Cutout
113 x 142
BACK
5/17
WIRING DIAGRAM
MOTOR PROTECTION RELAY
5
MM30
5/18
BACK
ORDERING INFORMATION
MOTOR PROTECTION RELAY
Model
Description
Catalogue No.
MM30
Motor Protection Relay 20-110V
EMM30AXX000
MM30
Motor Protection Relay 88-264V
EMM30BXX000
5
BACK
5/19
TECHNICAL DATA
GENERATOR PROTECTION RELAYS
Multifunction Generator Protection Relays and
Percentage Biased Generator Differential Relay
✦
✦
✦
✦
✦
✦
Display of various parameters, trip count & trip data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature help maintenance
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCOM” User friendly software.
Model
IM3GV
IM30G
MD32G
Description
Generator Protection
Generator Protection
Generator Differential
Device Code
50/51V, 49,46,27,59,81,40,32,37
50/51, 46, 64S, 40, 32
87, 50/51, 50LBB, 64S / 87N
Design
Numeric
Numeric
Numeric
Functions Available
Voltage rest. O/C Highset
Lowset O/C
Generator Differential
Trip time char. NI, Def time
Highset O/C
Bias % with dual adjustable slope
Thermal Image
Stator E/F
Over Current
Lowset Negative sequence
Negative Sequence
Stator E/F
Highset Negative sequence
Reverse Power
CB Failure protection
5
Under voltage, Over frequency
Loss of field, Reverse Power
Low forward power,
CB Failure protection
Other Features
1 A or 5 A site selectable
1 A or 5 A site selectable
1 A or 5 A site selectable
Display of Parameters
Display of Parameters
Display of Parameters
Built in Self supervision
Built in Self supervision
Wave form capture feature
RS485 Port, Blocking Function
RS485 Port, Blocking Function
Built in Self supervision, RS485 Port
Burden on CT
0.2 VA for 5A, 0.01 VA for 1A
0.2 VA for 5A, 0.01 VA for 1A
0.2 VA for 5A, 0.01 VA for 1A
Burden on PT
0.04 VA
0.04 VA
Not applicable
Burden on Auxiliary supply
8.5 VA
8.5 VA
8.5 VA
Operating temp
10° to 60° C
10° to 60° C
10° to 60° C
Weight
< 2kg
< 2kg
< 2kg
Output Contacts
4 C/O, S/R or H/R or Time del
4 C/O, S/R or H/R or Time del
4 C/O, S/R or H/R or Time del
1 C/O for self supervision
1 C/O for self supervision
1 C/O for self supervision
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
121 x 158 x 224
Panel Cutout
113 x 142
113 x 142
113 x 142
5/20
BACK
WIRING DIAGRAM
GENERATOR PROTECTION RELAYS
5
IM3GV
IM30G
MD32G
BACK
5/21
ORDERING INFORMATION
GENERATOR PROTECTION RELAYS
Model
5
Description
Catalogue No.
IM3GV
Generator Protection Relay 20-110V
EI3GVAXX000
IM3GV
Generator Protection Relay 88-264V
EI3GVBXX000
IM30G
Generator Protection Relay 20-110V
EI30GAXX000
IM30G
Generator Protection Relay 88-264V
EI30GBXX000
MD32G
Differential Relay for Generator 20-110V
ED32GAXX000
MD32G
Differential Relay for Generator 88-264V
ED32GBXX000
5/22
BACK
TECHNICAL DATA
SYNCHRONISING RELAYS
Generator Synchronising /
Synchrocheck relays
✦
✦
✦
✦
✦
✦
Display of various parameters, event count & event data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature help maintenance.
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCOM” User friendly software.
Model
SPM21
SCM21
5
Description
Auto Synchronising Relay
Synchronising Check Relay
Device Code
25
25
Design
Numeric
Numeric
Functions Available
Auto Synchronising with
Synchro Check with
Adjustable voltage,
Adjustable voltage
Adjustable Frequency,
Adjustable Frequency
Adjustable Phase angle,
Adjustable Phase angle
Adjustable Reclose time,
Adjustable Reclose time, Check Synch /
Bus Live / Dead operation
Dead line / Dead bus modes of operation,
Speed Regular Control,
Over voltage protection, Under voltage
Voltage Regulator Control,
protection, Over Frequency Protection
Digital inputs to monitor
Under frequency protection,
CB position
Digital inputs to monitor CB position
Rating
110V - 125 V PT input
110V - 125 V PT input
Other Features
Display of Parameters,
Display of Parameters,
Built in self supervision,
Built in self supervision,
RS485 Port
RS485 Port
Burden on PT
0.04 VA
0.04 VA
Operating temp
10° to 60° C
10° to 60° C
Weight
< 2kg
< 2kg
Burden on Auxiliary supply
8.5 VA
8.5 VA
Output Contacts
5 C/O
5 C/O
Construction
Drawout
Drawout
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
Panel Cutout
113 x 142
113 x 142
BACK
5/23
WIRING DIAGRAM
SYNCHRONISING RELAYS
5
SPM21
Connection diagram of 1 bus with 2 lines
Connection diagram of 1 bus with 1 line
SCM21
5/24
BACK
ORDERING INFORMATION
SYNCHRONISING RELAYS
Model
Description
Catalogue No.
SPM21
Auto Synchronising Relay 20-110V
EPM21A00000
SPM21
Auto Synchronising Relay 88-264V
EPM21B00000
SCM21
Synchrocheck Relay 20-110V
ESC21A00000
SCM21
Synchrocheck Relay 88-264V
ESC21B00000
5
BACK
5/25
TECHNICAL DATA
VOLTAGE / FREQUENCY RELAYS, DIRECTIONAL O/C, E/F RELAY
3 Phase voltage / frequency and Load shedding Relay
3 Phase voltage / frequency and zero sequence voltage Relay
✦
✦
✦
✦
✦
✦
Display of various parameters, trip count & trip data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature help maintenance.
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCOM” User friendly software.
Model
UFD34
UM30A
DM30
Description
3 Ph Voltage & Freq. Relay
3 Ph Voltage & Freq. Relay
3 Ph Dir O/C & E/F + Highset
Device Code
81, 27, 59, df/dt, de/dt
81, 27, 59, V/Hz, 59d, 59s, 59Uo
50/67 RYBN, 50 LBB
Design
Numeric
Numeric
Numeric
Functions Available
Frequency-4 stages selectable
Over exitation-2 stages
Low Set Dir O/C
as under or over or under/over
Frequency-2 stages selectable
Highset Dir O/C
Voltages - 2 stages selectable
as under or over or under/over
Low Set Dir E/F
Rate of change of frequency
Voltages - 2 stages selectable
Trip time Char : NI, VI, EI, Def time
protection df / dt - 2 Stages
as under or over
CB Failure Function
Blocking function
Zero Sequence - 2 Stages
MTA Setting = 0-359°
Blocking function
1A or 5A site selectable
100 - 125V PT input
5
Rating
100 - 125V PT input
100 - 125V PT input
Other Features
Display of Parameters
Display of Parameters
Display of Parameters
Built in Self supervision
Built in Self supervision
Built in Self supervision
RS485 Port communication
RS485 Port communication
RS485 Port communication
Burden on CT
Not applicable
Not applicable
0.2 VA for 5A, 0.01 VA for 1A
Burden on PT
0.04 VA
0.04 VA
8.5 VA
Operating temp
10° to 60° C
10° to 60° C
10° to 60° C
Weight
< 2kg
< 2kg
< 2kg
Burden on Auxiliary supply
8.5 VA
8.5 VA
0.04 VA
Output Contacts
4 C/O, S/R or H/R or Time del
4 C/O, S/R or H/R or Time del
4 C/O, S/R or H/R or Time del
1 C/O for self supervision
1 C/O for self supervision
1 C/O for self supervision
Construction
Drawout
Drawout
Drawout
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
121 x 158 x 224
Panel Cutout
113 x 142
113 x 142
113 x 142
5/26
BACK
WIRING DIAGRAM
VOLTAGE / FREQUENCY RELAYS, DIRECTIONAL O/C, E/F RELAY
5
UFD34
UM30A
DM30
BACK
5/27
ORDERING INFORMATION
VOLTAGE / FREQUENCY RELAYS, DIRECTIONAL O/C, E/F RELAY
Model
5
Description
Catalogue No.
UFD34
Frequency Relay 20-110V
EFD34A00000
UFD34
Frequency Relay 88-264V
EFD34B00000
UM30
U/V Relay with Neutral Monitoring 20-110V
EUM30A00000
UM30
U/V Relay with Neutral Monitoring 88-264V
EUM30B00000
DM30
3 Phase O/C and E/F Relay 20-110V (Directional)
EDM30AXX000
DM30
3 Phase O/C and E/F Relay 88-264V (Directional)
EDM30BXX000
5/28
BACK
TECHNICAL DATA
TRANSFORMER PROTECTION RELAY, CAPACITOR BANK PROTECTION RELAY
Percentage Biased Transformer Differential Relay
3 Phase Thermal + Over Current + Earth Fault Relay for transformer protection
✦
✦
✦
✦
✦
✦
Display of various parameters, trip count & trip data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature help maintenance.
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCOM” User friendly software.
Model
MD32T
IM30T
DIN30C
5
Description
Transformer Differential +
3 Ph O/C, E/F + Thermal
Restricted E/F
3 Ph O/C, E/F
For capacitor banks
Device Code
87 RYB, 87N
50/51 RYBN, 49, 46, 12t
51/51 RYBN, 46, 37 1o
Design
Numeric
Numeric
Numeric
Functions Available
Lowset Differential
Lowset O/C
O/C - 0.1 - 10 ln
Lowset Op time : <=30mS
Highset O/C
E/F - 0.1 - 5 ln
Highset Differential
Lowset E/F
negative Seq - 10% - 75% ln
Highset Op time : 6-20mS
Highset E/F
undercurrent - 10%
Restricted Earth Fault
Thermal Overload
unbalance - 2% - 50%
Dual slope Bias
Lowset current unbalance with
2nd harmonic restraint setting
Highset current unbalance
5th harmonic restraint setting
Inrush Energy protection
Auto correction of CT Ratio
CB Failure function
Zero sequence compensation
Blocking function
Blocking function
Other Features
Display of Parameters
Display of Parameters
Display of Parameters
Built in Self supervision
Built in Self supervision
RS 485 port
RS485 PORT
RS485 Port
LED indication for Trip / Power ON
1 A OR 5 A site selectable
1 A OR 5 A site selectable
Test feature
Waveform capture feature
Burden on CT
0.2 VA for 5A, 0.01 VA for 1A
0.2 VA for 5A, 0.01 VA for 1A
Operating temp
10° to 60° C
10° to 60° C
10° to 60° C
Weight
< 2kg
< 2kg
< 2kg
Burden on Auxiliary supply
8.5 VA
8.5 VA
Output Contacts
5 C/O, S/R or H/R or Time del
5 C/O, S/R or H/R or Time del
2 C/O contacts, S/R or H/R
Construction
Drawout
Drawout
DIN rail mounting
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
105 x 85 x 70
Panel Cutout
113 x 142
113 x 142
Not applicable
BACK
5/29
WIRING DIAGRAM
TRANSFORMER PROTECTION RELAYS, CAPACITOR BANK PROTECTION RELAY
5
MD32T
IM30T
DIN30C
5/30
BACK
ORDERING INFORMATION
TRANSFORMER PROTECTION RELAYS, CAPACITOR BANK PROTECTION RELAY
Model
Description
Catalogue No.
MD32T
Differential Relay for Transformer 20-110V
ED32TAXX000
MD32T
Differential Relay for Transformer 88-264V
ED32TBXX000
IM30T
3 Phase O/C and E/F Relay for Transformer 20-110V
ED30TAXX000
IM30T
3 Phase O/C and E/F Relay for Transformer 88-264V
ED30TBXX000
DIN30C
Capacitor Bank Protection Relay 20-110V DIN mounting
ED30CAXX000
DIN30C
Capacitor Bank Protection Relay 88-264V DIN mounting
ED30CBXX000
BACK
5/31
5
TECHNICAL DATA
CONTROL & SUPERVISION RELAYS
Power Management Relay
Multifunction 3 Phase Measuring Instrument
✦
✦
✦
✦
✦
✦
Display of various parameters, event count & event data on 8 digit alphanumeric display.
Separate LEDs for various fault indication.
Four user programmable output relays.
Built in self supervision & self testing feature help maintenance.
Easy operation by 5 push buttons.
RS 485 port for serial communication with “MSCOM” User friendly software.
Model
MW33
MU30
Description
Power management
Measurement
Device Code
81, 27, 59, PF, P, QL, QC
Measure
Design
Numeric
Numeric
Functions Available
Frequence 2 stages,
Actual measurements of
Voltage 2 stage,
Freq, I, V, PF,
Power factor 2 stage,
Power - Active / Reactive / Apparent
Active power 2 stage,
Energy - Active / Reactive
Capacitor reactive power 2 stage.
Maximum Demand
5
Actual measurement of Freq,
V, I, PF, active power, reactive power.
Other Features
Display of Parameters,
Display of Parameters,
MD recording & data logging
Record of last event
RS485 Port, Event recording
RS485 Port, Event recording,
Event counter, MD recording,
Oscillographic wave form capture
Burden on CT
0.2 VA for 5A, 0.01 VA for 1A
0.2 VA for 5A, 0.01 VA for 1A
Burden on PT
0.04 VA
0.04 VA
Operating temp
10° to 60° C
10° to 60° C
Weight
< 2kg
< 2kg
Burden on Auxiliary supply
8.5 VA max
8.5 VA max
Output Contacts
5 C/O
5 C/O
Construction
Drawout
Drawout
Dim W x H x D in mm
121 x 158 x 224
121 x 158 x 224
Panel Cutout
113 x 142
113 x 142
5/32
BACK
WIRING DIAGRAM
CONTROL AND SUPERVISION RELAYS
5
MW33
MU30
BACK
5/33
ORDERING INFORMATION
CONTROL AND SUPERVISION RELAYS
Model
Description
Catalogue No.
MW33
Power Management Relay 20-110V
EMW33AXX000
MW33
Power Management Relay 88-264V
EMW33BXX000
MU30
Measuring Relay 20-110V
EMU30AXX000
MU30
Measuring Relay 88-264V
EMU30BXX000
5
5/34
BACK
TECHNICAL DATA
REVERSE POWER RELAY
Model
MRP11
Description
Reverse Power Relay
Design
Micro-control based
Functions Available
Instantaneous and Adjustable time relay
5
Powerful DFT Algorithm
Field selectable voltage rating
LED Indicators
Other Features
Compact size
Flush mounting on panel
Burden on CT
Not applicable
Burden on PT
PT - less than 0.25VA
Operating temp
0° to 60° C
Weight
approx. 1kg
Burden on Auxiliary supply
less than 8 VA
Output Contacts
1 C/O + 1 NO Contacts (self reset type)
Construction
Drawout
Dim W x H x D in mm
71 x 158 x 204
Panel Cutout
142 x 62
BACK
5/35
WIRING DIAGRAM
REVERSE POWER RELAY
5
ORDERING INFORMATION
REVERSE POWER RELAY
Model
MRP11
Description
Reverse Power Relay
Catalogue No.
MRP11
00
Catalogue No. Selection Guide for MRP11
5/36
BACK
ORDERING INFORMATION
OTHER RELAYS
Model
Description
Catalogue No.
MX7/5
Matrix Interface Module 20-110V
99M75A000
MX7/5
Matrix Interface Module 88-264V
99M75B000
MC-R
Data Rec. & Comm. Module 20-110V
99MCRA000
MC-R
Data Rec. & Comm. Module 88-264V
99MCRB000
REX
Expansion Module 20-110V
99REXA000
REX
Expansion Module 88-264V
99REXB000
REX
Expansion Module 20-110V
99REXA001
REX
Expansion Module 88-264V
99REXB001
CPSC
RS232-485 Converter
99CPSC00
MSCOM
Communication Software
BACK
99MSCOM00
5/37
5