METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
SECTION 16346G
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
PART 1
1.01
GENERAL
SCOPE
A. The Contractor shall furnish and install, where indicated on the drawings, a complete
standby power generation and load management power distribution and control system.
B. The Emergency Power System consists of the following as applicable:
1. Generator sets
2. Generator Control Switchgear (with associated monitoring and distribution equipment)
3. Automatic Transfer Switches
4. Uninterruptible Power Supply Systems
5. Load Banks
6. Battery Systems
C. The Emergency Power System Supplier (EPSS) shall be an authorized service provider for
all components of the Emergency Power System (EPS). In order to assure maximum
equipment uptime and best service response to the owner, the Emergency Power System
Supplier shall be an factory-authorized dealer with complete Emergency Power System
parts and service available on a 24 hour emergency basis within a ✎__________ mile
radius of the project site.
D. The Generator Control Switchgear specified in this section shall be a medium voltage metalclad construction. The Generator Control Switchgear shall be by the same manufacturer as
the generator sets and furnished with the generator sets by the (EPSS) as a total system.
The switchgear and circuit breakers utilized in the Generator Control Switchgear shall be
products of the same manufacturer as the circuit breakers provided in the assemblies for
the normal and emergency distribution as specified under other sections of the
specifications.
E. The Generator Control Switchgear specified includes overcurrent and protective devices.
The Emergency Power System Supplier shall provide a Short Circuit and Coordination
Study, performed by a qualified professional engineer, as specified in the contract
documents and described in Part 3 below.
1.02
RELATED SECTIONS
A. Section 16341 – Metal-Enclosed Bus – Medium Voltage
B. Section 16346 – Metal-Clad Switchgear (VacClad) – Medium Voltage
C. Section 16496 – Automatic Transfer Switches
✎
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
D. Section 16911 – Power Monitoring and Control System
E. Section ✎_____ – Uninterruptible Power Supply System
F. Section ✎_____ – Generators
G. Section ✎_____ – Load Bank
H. Section ✎_____ – Battery Systems
I.
Section 16015 – Short Circuit / Coordination Studies
J. Section 16016 – Arc Flash Study
1.03
REFERENCES
A. The metal-clad switchgear and all components shall be designed, manufactured and tested
in accordance with the latest applicable standards of NEMA SG-4 and SG-5, and but not
limited to, ANSI/IEEE 37.20.2.
B. The Emergency Power System shall meet or exceed the applicable requirements for the
following standards as required:
1. UL
2. CSA
3. IEC
4. NFPA 70
5. NFPA 99
6. NFPA 110
1.04
SUBMITTALS – FOR REVIEW/APPROVAL
A. The following information shall be submitted to the Engineer:
1. Master drawing index
2. Front view elevation
3. Floor plan
4. Top view
5. Single line diagram
6. Controls One-Line diagram
7. Nameplate schedule
8. Component list
9. Conduit entry/exit locations
10. Assembly ratings including:
a. Short-circuit rating
b. Voltage
c. Continuous current
✎
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
d. Basic impulse level for equipment over 600 volts
11. Major component ratings including:
a. Voltage
b. Continuous current
c. Interrupting ratings
12. Breaker Schedule
a. Cable terminal sizes.
13. Product data sheets.
14. Sequence of operation description
B. Where applicable the following additional information shall be submitted to the Engineer:
1. Busway connection
2. Connection details between close-coupled assemblies
3. Composite floor plan of close-coupled assemblies
4. Key interlock scheme drawing and sequence of operations
5. Descriptive bulletins
1.05
SUBMITTALS – FOR CONSTRUCTION
A. The following information shall be submitted for record purposes:
1. Final as-built drawings and information for items listed in paragraph 1.04
2. Wiring diagrams
3. Installation information including equipment anchorage provisions
4. Seismic certification as specified.
B. The final (as-built) drawings shall include the same drawings as the construction drawings
and shall incorporate all changes made during the manufacturing process.
1.06
QUALIFICATIONS
A. The manufacturer of the assembly shall be the manufacturer of the major components
within the assembly.
B. For the equipment specified herein, the manufacturer shall be ISO 9001 or 9002 certified.
C. The manufacturer of this equipment shall have produced similar electrical equipment for a
minimum period of five (5) years. When requested by the Engineer, an acceptable list of
installations with similar equipment shall be provided demonstrating compliance with this
requirement.
D.
✄Provide
Seismic tested equipment as follows:
1. The equipment and major components shall be suitable for and certified to meet all
applicable seismic requirements of the International Building Code (IBC) for zone 4
application. Guidelines for the installation consistent with these requirements shall be
provided by the switchgear manufacturer and be based upon testing of representative
✄ Note
to Spec. Writer - Optional
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
equipment. The test response spectrum shall be based upon a 5% minimum damping
factor, IBC: a peak of 2.45g’s (3.2-11 Hz), and a ZPA of 0.98g’s applied at the base of
the equipment. The tests shall fully envelop this response spectrum for all equipment
natural frequencies up to at least 35 Hz.
-- ☛OR –
1. The equipment and major components shall be suitable for and certified to meet all
applicable seismic requirements of the California Building Code (CBC) through zone 4
application. Guidelines for the installation consistent with these requirements shall be
provided by the switchgear manufacturer and be based upon testing of representative
equipment. The test response spectrum shall be based upon a 5% minimum damping
factor, CBC: a peak of 2.15g’s, and a ZPA of 0.86g’s applied at the base of the
equipment. The tests shall fully envelop this response spectrum for all equipment
natural frequencies up to at least 35 Hz.
-- ☛OR -1. The manufacturer may certify the equipment based on a detailed computer analysis of
the entire assembly structure and its components. Guidelines for the installation
consistent with these requirements shall be provided by the switchgear manufacturer
and be based upon testing of representative equipment. The equipment manufacturer
shall document the requirements necessary for proper seismic mounting of the
equipment
2. The following minimum mounting and installation guidelines shall be met, unless
specifically modified by the above referenced standards.
a. The Contractor shall provide equipment anchorage details, coordinated with the
equipment mounting provision, prepared and stamped by a licensed civil engineer in
the state. Mounting recommendations shall be provided by the manufacturer based
upon approved shake table tests used to verify the seismic design of the equipment.
b. The equipment manufacturer shall certify that the equipment can withstand, that is,
function following the seismic event, including both vertical and lateral required
response spectra as specified in above codes.
c. The equipment manufacturer shall document the requirements necessary for proper
seismic mounting of the equipment. Seismic qualification shall be considered
achieved when the capability of the equipment, meets or exceeds the specified
response spectra.
1.07
REGULATORY REQUIREMENTS
1.08
DELIVERY, STORAGE AND HANDLING
A. Equipment shall be handled and stored in accordance with manufacturer’s instructions. One
(1) copy of these instructions shall be included with the equipment at time of shipment.
B. Shipping groups shall be designed to be shipped by truck, rail, or ship. Indoor groups shall
be bolted to skids. Breakers and accessories shall be packaged and shipped separately.
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
C. Switchgear shall be equipped to be handled by crane. Where cranes are not available,
switchgear shall be suitable for skidding in place on rollers using jacks to raise and lower
the groups.
D. Switchgear being stored prior to installation shall be stored so as to maintain the equipment
in a clean and dry condition. If stored outdoors, indoor gear shall be covered and heated,
and outdoor gear shall be heated.
E. Each switchgear assembly shall be split into shipping groups for handling as determined
during the shop drawing phase jointly with the installing contractor. Shipping groups shall
be designed to be shipped by truck, rail or ship. Shipping groups shall be bolted to skids,
and covered with tarps for protection from weather. Accessories shall be packaged
separately.
1.09
OPERATION AND MAINTENANCE MANUALS
A. Equipment operation and maintenance manuals shall be provided with each assembly
shipped, and shall include instruction leaflets and instruction bulletins for the complete
assembly and each major component.
PART 2
2.01
PRODUCTS
MANUFACTURERS
A. Caterpillar
B.
✎ __________
C.
✎ __________
The listing of specific manufacturers above does not imply acceptance of their products that do
not meet the specified ratings, features and functions. Manufacturers listed above are not
relieved from meeting these specifications in their entirety.
2.02
RATINGS
A. The switchgear described in this specification shall be designed for operation on a ✎______
kV, three-phase, ✎______wire, ☛[solidly grounded] [ungrounded] [impedance grounded]
[high impedance grounded], ☛[50][60]-hertz utility system.
B. Each circuit breaker shall have the following ratings:
✎ ______kV
Maximum Voltage
✎ ______kV Peak
BIL Rated
☛Continuous Current (5/15 kV)
✎ ______Amperes ☛[1200] [2000] [3000]
Short-Circuit Current at rated
✎ ______kA RMS SYM
Maximum kV
✎ ______
Rated Voltage Range Factor K
✎ ______kA Crest
Closing and Latching Capability
Maximum symmetrical Interrupting
✎
☛
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Note to Spec. Writer – Select one
16346G-5
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
✎ ______kA
and Three Second Rating
Nominal 3-Phase MVA Class
Rated Interrupting Time
RMS SYM
✎ ______MVA
Five cycles
Note to Spec. Writer:
Fill in above data from table 16346G-1
Rated
Maximum
Voltage
V
kV RMS
4.76
4.76
4.76
8.25
8.25
15
15
15
15
2.03
BIL
kV Peak
60
60
60
95
95
95
95
95
95
Table 16346G-1
Rated Short Rated Maximum
Voltage Symmetrical
Circuit
Range Interrupting
Current at
Factor and 3-second
Rated
Short Time
Maximum
Current
Voltage
Carrying
Capability
I
K
K*I
kA RMS sym
kA RMS sym
29
1.24
36
41
1.19
49
63
1.0
63
33
1.25
41
63
1.0
63
18
1.3
23
28
1.3
36
37
1.3
48
63
1.0
63
Closing and Nominal
3-phase
Latching
MVA Class
Capability
(Momentary)
2.7 * K * I
kA Crest
97
132
170
111
170
62
97
130
170
MVA
250
350
500
500
900
500
750
1000
1500
CONSTRUCTION
A. The switchgear assembly shall consist of individual vertical sections housing various
combinations of circuit breakers and auxiliaries, bolted to form a rigid metal-clad switchgear
assembly. Metal side sheets shall provide grounded barriers between adjacent structures
and solid removable metal barriers shall isolate the major primary sections of each circuit.
☛[Two rear covers shall be furnished for each vertical section for circuit isolation and ease
of handling.] [Hinged rear doors, complete with provisions for padlocking, shall be provided.]
B. The stationary primary contacts shall be silver-plated and recessed within insulating tubes.
A steel shutter shall automatically cover the stationary primary disconnecting contacts when
the breaker is in the disconnected position or out of the cell. Provide rails to allow
withdrawal of each circuit breaker for inspection and maintenance without the use of a
separate lifting device.
C. The assembly shall be provided with adequate lifting means.
✎
☛
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1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
2.04
BUS
A. The main bus shall be copper and have fluidized bed epoxy flame-retardant and trackresistant insulation. The bus supports between units shall be flame-retardant, trackresistant, glass polyester. The switchgear shall be constructed so that all buses, bus
supports and connections shall withstand stresses that would be produced by currents
equal to the momentary ratings of the circuit breakers. Main bus shall be rated ☛[1200]
[2000] [3000] [4000] amperes. Insulated copper main bus shall be provided and have
provisions for future extension. All bus joints shall be plated, bolted and insulated with easily
installed boots. The bus shall be braced to withstand fault currents equal to the close and
latch rating of the breakers. The temperature rise of the bus and connections shall be in
accordance with ANSI standards and documented by design tests.
B. A copper ground bus shall extend the entire length of the switchgear.
C.
2.05
✄A ☛[bare]
[insulated] fully rated neutral bus shall extend the entire length of the switchgear.
WIRING/TERMINATIONS
A. The switchgear manufacturer shall provide suitable terminal blocks for secondary wire
terminations and a minimum of 10% spare terminals shall be provided. One control circuit
cutout device shall be provided in each circuit breaker housing. Switchgear secondary wire
shall be #14 AWG, type SIS rated 600 volt, 90 degrees C, furnished with wire markers at
each termination. Wires shall terminate on terminal blocks with marker strips numbered in
agreement with detailed connection diagrams.
B. Incoming line and feeder cable lugs of the type and size indicated elsewhere shall be
furnished.
C. Where individual conductors cross switchgear shipping splits they shall be fitted with plugtogether connectors for reliable field assembly.
2.06
CIRCUIT BREAKERS
A. The circuit breakers shall be horizontal drawout type, capable of being withdrawn on rails.
The breakers shall be operated by a motor-charged stored energy spring mechanism,
charged normally by a universal electric motor and in an emergency by a manual handle.
The primary disconnecting contacts shall be silver-plated copper.
B. Each circuit breaker shall contain three vacuum interrupters separately mounted in a selfcontained, self-aligning pole unit, which can be removed easily. The vacuum interrupter pole
unit shall be mounted on glass polyester supports. A contact wear gap indicator for each
vacuum interrupter, which requires no tools to indicate available contact life, shall be easily
visible when the breaker is removed from its compartment. The current transfer from the
vacuum interrupter moving stem to the breaker main conductor shall be a non-sliding
design. The breaker front panel shall be removable when the breaker is withdrawn for ease
of inspection and maintenance.
☛
Note to Spec. Writer – Select one
to Spec. Writer – Optional
✄ Note
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
C. The secondary contacts shall be silver-plated and shall automatically engage in the breaker
operating position, which can be manually engaged in the breaker test position.
D. Interlocks shall be provided to prevent closing of a breaker between operating and test
positions, to trip breakers upon insertion or removal from housing and to discharge stored
energy mechanisms upon insertion or removal from the housing. The breaker shall be
secured positively in the housing between and including the operating and test positions.
E. The breakers shall be electrically operated by the following control voltages:
☛[48-]
[125-] Vdc charge/close/trip.
Each breaker shall be complete with control switch and red and green indicating lights to
indicate breaker contact position.
F. DC control voltage shall be supplied with the Generator Control Switchgear including
batteries, charger, and battery rack.
2.07
AUXILIARY DEVICES
A. Ring type current transformers shall be furnished as indicated on the contract drawings. The
thermal and mechanical ratings of the current transformers shall be coordinated with the
circuit breakers. Their accuracy rating shall be equal to or higher than ANSI standard
requirements. The standard location for the current transformers on the bus side and line
side of the breaker units shall be front accessible to permit adding or changing current
transformers without removing high-voltage insulation connections. Shorting terminal blocks
shall be furnished on the secondary of all the current transformers.
B. Voltage and control power transformers of the quantity and ratings indicated in the detail
specification shall be supplied. Voltage transformers shall be mounted in drawout drawers
contained in an enclosed auxiliary compartment. Control power transformers up to 15 kVA,
single-phase shall be mounted in drawout drawers. Rails shall be provided as applicable for
each drawer to permit easy inspection, testing and fuse replacement. Shutters shall isolate
primary bus stabs when drawers are withdrawn.
C. A mechanical interlock shall be provided to require the secondary breaker to be open before
the CPT drawer or CPT primary fuse drawer can be withdrawn.
2.08
ENCLOSURES
A. The switchgear described in these specifications shall be indoor construction, with devices
arranged as shown on contract drawings.
-- ☛OR -A. The switchgear described in these specifications shall be weatherproof, aisle-less
construction for outdoor service. Each shipping group shall be mounted upon an integral
base frame with a weatherproof enclosure for assembly in the field into a complete metalenclosed switchgear assembly with a weatherproof door provided on the breaker drawout
side of each vertical section.
☛
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
-- ☛OR -A. The switchgear described in these specifications shall be weatherproof, sheltered-aisle
construction for outdoor service. Each shipping group shall be mounted upon an integral
base frame with a weatherproof enclosure assembly in the field into a complete metal
enclosed switchgear assembly. The enclosure shall be extended on the breaker drawout
side to form an operating and/or maintenance aisle large enough to permit interchange of
circuit breakers. A weatherproof door with an inside quick release latch mechanism shall be
located at each end of the inside even when locked on the outside. Interior lights, light
switches and duplex ground fault receptacles shall be furnished in the aisle.
B. Where outdoor switchgear is shown, each vertical section of outdoor switchgear shall be
provided with space heaters. Tubular type heaters operated at half voltage for long life shall
be supplied. 500-volt or 250-volt rated heaters shall be used at 240 or 120 volts,
respectively. Power for space heaters shall be furnished ☛[as indicated on the drawings]
[from a control power transformer mounted in the switchgear].
C.
2.09
✄Heaters
shall be wired to provide temporary heating during storage.
NAMEPLATES
A. Engraved nameplates, mounted on the face of the assembly, shall be furnished for all main
and feeder circuits as indicated on the drawings. Nameplates shall be laminated plastic,
black characters on white background. Characters shall be 3/16-inch high, minimum.
B. Furnish master nameplate for each switchgear lineup giving information in accordance with
IEEE Std C37.20.2-1999, section 7.4.1. Circuit nameplates shall be provided with circuit
designations as shown on purchaser’s single-line diagrams.
C. Control components mounted within the assembly, such as fuse blocks, relays,
pushbuttons, switches, etc., shall be suitably marked for identification corresponding to
appropriate designations on manufacturer’s wiring diagrams.
2.10
FINISH
A. The finish shall consist of a coat of gray (ANSI-61), thermosetting, polyester powder paint
applied electrostatically to pre-cleaned and phosphatized steel and aluminum for internal
and external parts. The coating shall have corrosion resistance of 600 hours to 5% salt
spray.
2.11
ACCESSORIES
A. The switchgear manufacturer shall furnish accessories for test, inspection, maintenance,
and operation, including:
1. One – Maintenance tool for manually charging the breaker closing spring and manually
opening the shutter
2. One – Levering crank for moving the breaker between test and connected positions
3. One – Test jumper for electrically operating the breaker while out of its compartment
☛
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to Spec. Writer – Optional
✄ Note
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
4. One – Breaker lifting yoke used for attachment to breaker for lifting breaker on or off
compartment rails, when applicable
5. One – Set of rail extensions and rail clamps, when applicable
2.12
6.
✄One
– Portable lifting device for lifting the breaker on or off the rails
7.
✄One
– Ramp for rolling breaker mounted in lower compartment directly onto the floor
8.
✄One
– Test cabinet for testing electrically operated breakers outside housing
9.
✄One
– “Dockable” transport dolly for moving breaker about outside its compartment
10.
✄One
– Electrical levering device.
EMERGENCY POWER SYSTEM (EPS) AUTOMATION & CONTROLS
A. The automation and control system shall facilitate overall EPS operation including automatic
standby operation, monitoring and control of the generator sets including start/stop,
alarm/fault monitoring, synchronizing, generator kW load sharing, generator kVAR load
sharing, generator loading/unloading, load shed/add, and protective relaying.
B. The EPS Automation and Controls shall utilize true redundant, distributed processing
technology to maximize system reliability and fault tolerance. The distributed processing
system shall include a separate automation processor for each power source, and a
separate automation processor dedicated to each touchscreen Human/Machine Interface
(HMI) operation.
C. The EPS Automation and Controls shall be by the same manufacturer as the switchgear
and generator sets. It shall be furnished with the generator sets by the Emergency Power
System Supplier as a total coordinated and integrated system.
*Note to Spec. Writer:
Choose one of the HMI Options below, depending on usage of PowerLynx 1000,
PowerLynx 2000, and PowerLynx 3000 product
2.13
HMI – HUMAN/MACHINE INTERFACE [POWERLYNX 1000 HMI]
A. EPS Automation interface shall be via a touchscreen with the following characteristics:
1. Monochrome display capable of displaying both text and graphics.
a. 6” diagonal for EPS’s with two (2) Generator Sets.
b. 10” diagonal for EPS’s with three (3) or more Generator Sets.
2. Resistive touchscreen interface.
a. The display shall support a minimum resolution of 320x240 pixels in 6” diagonal size,
black and white.
b. The display shall support a minimum resolution of 640x480 pixels in 10” diagonal
size, black and white.
-- ☛OR-
✄ Note
☛
to Spec. Writer – Optional
Note to Spec. Writer – Select one
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1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
2.13
HMI – HUMAN/MACHINE INTERFACE [POWERLYNX 2000 HMI]
A. EPS Automation interface shall be via a touchscreen with the following characteristics:
1. Color, 12” (diagonal) LCD TFT display capable of displaying both text and graphics.
2. Resistive touchscreen interface.
a. The display shall support a minimum resolution of 800x600 pixels, 256 displayable
colors.
-- ☛OR --
2.13
HMI – HUMAN/MACHINE INTERFACE [POWERLYNX 3000 HMI]
A. EPS interface shall be via a touchscreen with the following characteristics:
1. Color, 15 inch (diagonal) TFT LCD industrial display capable of displaying both text and
graphics.
2. The touch screen shall be clear glass, with light transmission of 95% or better, furnished
with a Surface Acoustic Wave touch interface.
3. The display shall support a minimum resolution of 1024 x 768 pixels, 16 million
displayable colors, 24~60kHZ horizontal scan rate, 56-75kHZ refresh rate.
4. An EPS Touch Screen Processor shall be provided and shall provide the following
additional features:
a. System Report Generation
1. The EPS Automation shall be capable of displaying and printing the following
reports:
i. System Settings Report
ii. Generator Settings Report
iii. Plant Test Report – including all current operational parameters
iv. ✄NFPA compliant JCAHO report
v. Alarm Summary Report
vi. ✄Provide a printer for local printing of system reports.
vii. Integral Alarm and Event Recording
viii. Integral Short Term Trending
ix. Alarm Log shall be exportable to floppy disk drive.
b. The EPS Touchscreen Processor shall operate with the following minimum
characteristics:
1. Minimum environmental requirements: temperature 0-55 deg. C, Protection
Class IP20, Shock resistant up to 5Gs.
2. Industrial Processor shall have 24 Vdc power supply fed from best source
system.
☛
Note to Spec. Writer – Select one
to Spec. Writer - Optional
✄ Note to Spec. Writer – Optional
✄ Note
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1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
2.14
HMI SCREEN LISTING
A. The EPS Automation shall provide the following screens. The screens shall provide all of
the information, metering, control, annunciations settings and indications listed below:
1. Main Menu Screen with a complete listing of major screens.
2. System Overview Screen with a dynamic graphic display of the electrical one line.
3. System Control Screen.
4. System Metering Screen with graphical presentation of all functions.
5. System Settings Screen.
6. Generator Control Screen for each generator
7. Generator Metering Screen for each generator with graphical presentation of all
functions specified.
8. Generator Settings Screen.
9. Generator Demand Priority Control and Status Screen.
10. Generator Load Shed Control Screen.
11. Engine Monitoring (Engine Meter/Gauge) Screen for each generator that shall contain a
graphical representation of all of the engine gauges and data specified.
a. Generator Engine Air / Cool Screen
b. Generator Engine Oil / Fuel Screen
12. Annunciator Menu Screen
a. System Annunciation Screen that shall contain all of the Status, Lamp Test and
Alarm points specified.
b. Generator Annunciator Screen for each generator that shall contain: Status, Lamp
Test, Pre-Alarms and Shutdown faults specified.
13. Report Menu Screen
a. Generator Settings Report Screen
b. Plant Test Settings Report Screen
14. Password Entry screen that shall contain a numeric keypad for password entry.
15. Alarm Summary Screen that shall contain a time/date stamped System Alarm Summary.
*Note to Spec. Writer:
The following ATS Overview screen only applies to Powerlynx 2000 or 3000 and requires
CAT ATS (configured with communications and correct options).
16. ATS Overview (monitoring) screen with graphical display on the “position” ATS switch.
*Note to Spec. Writer:
The following ATS Settings and Control screens only apply to Powerlynx 3000 and
requires CAT ATS (configured with communications and correct options).
17. ATS Settings Screen with remote adjustment of typical switch settings.
18. ATS Control Screen with status of a specific switch indicating position, and electrical
values. Also test control switch position indication and control of the switch remotely,
and pushbuttons to control transfer to emergency and normal power.
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
*Note to Spec. Writer:
The additional HMI Screens listed below apply to PowerLynx 3000 only
19. System Trend Screen that shall contain trending information described below.
20. Generator Trending Screen that shall contain trending information described below.
21.
2.15
✄Engine
Historical Trending Screen that shall contain trending information described
below under Long Term Historical Trending.
EMERGENCY POWER SYSTEM (EPS) AUTOMATION FEATURES
A. The EPS Automation and Controls shall consist of the automation hardware and software
required for the control of the Engine-Generator plant and associated Transfer Switches
and Distribution Circuit Breakers, as shown on the Contract drawings. The System shall
include all Processors, HMI (Human / Machine Interface) Touchscreens, Power
Transducers, Supervisory Network and all ancillary control equipment within the Generator
Control Switchgear necessary to automatically execute the specified Functional Sequence
of Operations.
B. The EPS Automation shall be provided with an HMI consisting of a Touchscreen display.
1. The HMI shall provide all metering, status, monitoring, and control information to the
operator.
2. The HMI shall serve only as an Operator Interface. The EPS must continue to function
normally with a complete HMI failure.
C. The EPS Automation and Controls shall be designed to eliminate single points of failure.
1. For redundancy, multiple automation processors shall be utilized.
2. At a minimum, the EPS Automation shall utilize a separate automation processor for
each generator power source, and each HMI.
3. EPS Control systems utilizing a single automation processor are not acceptable.
D. For redundancy, all Master Control automation functions shall be capable of being executed
from any of multiple distributed processors. If the automation processor executing Master
Control automation functions should fail, the next available automation processor shall
automatically assume control of all Master Control automation functions. The number of
redundant processors for Master Control automation functions shall be equal to the number
of generators in the system. The redundant automation processors shall each consist of a
fully redundant power supply and CPU. Transfer of Master Control functions to a redundant
processor shall be bumpless. The Master Control automation functions shall include:
1. Automatic start of the generator plant when a run request is received
2. First-up and dead-bus control logic
3. Automatic synchronizing and paralleling of the generator plant
4. Automatic generator load and VAR sharing controls
5. Automatic Generator Demand Priority control logic
6. Automatic Load Shed / Add control logic
✄ Note
to Spec. Writer - Optional
16346G-13
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
E. An I/O rack with I/O cards or a distributed I/O block shall be provided for all required Master
Control I/O including Load Shed relay outputs, annunciation inputs and outputs, etc.
✄[A
second (redundant) Master Control I/O rack with I/O cards (or a distributed I/O
block) shall be provided with redundant I/O points for all Master Control I/O requirements.]
F. A separate Load Shed distributed I/O block shall be provided for each group of up to (4)
electrically operated distribution circuit breakers (as indicated on the drawings) to control the
opening and closing of distribution circuit breakers when signaled by the Master Control
Automatic Load Shed Control Logic and to monitor the open and closed status of
distribution circuit breakers.
✄[A
second (redundant) Load Shed distributed I/O block shall be provided for each
group of up to (4) distribution circuit breakers.]
G. The EPS Automation and Controls shall be capable of surviving a fault of any one of its’
automation processors. The failure of any single Master Control, or any single generator
power source automation processor shall only cause loss of automatic operation of a single
generator.
*Note to Spec. Writer:
The following additional control network redundancy (Paragraph H) applies only to
PowerLynx 2000 and 3000 Systems.
H. To eliminate single points of failure, the EPS automation processors shall coordinate their
control functions via a dedicated fully redundant supervisory network. The redundant
supervisory network shall have a 1Mbs data rate or higher and shall be configured so that
failure of the primary network shall result in the system operating on the secondary network
without any loss of manual or automatic functionality.
I.
The EPS Automation control power shall be protected against single point of failure by the
utilization of a 24 Vdc, Best Source DC system.
1. Each Engine battery and a Station Battery shall be connected to a common DC bus.
2. Each Engine battery and the Station Battery shall be furnished with a separate battery
charger.
3. An 80amp diode and 40amp circuit breaker shall connect each battery to the common
DC bus to protect the common DC bus from the catastrophic failure of any DC source.
4. All controls and protective relays shall be powered from this Best Source DC bus.
J. The EPS Controls shall be provided with an “Instant Auto” Selector Switch. The Instant
Auto Selector Switch shall shift the EPS to the fully automatic mode. This insures the EPS,
even in the event of a touchscreen failure, can be returned to the fully automatic mode.
K. Each Generator Circuit Breaker processor shall be furnished with a Power Transducer. The
Power Transducer shall accept 3 phase Voltage and Current inputs from the associated
source, and single phase Voltage input from the load side of the Circuit Breaker. The
Power Transducer shall provide all critical power related data to the source processor at
least once every 100ms.
✄ Note
to Spec. Writer - Optional
16346G-14
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
L. The EPS Automation shall log all events and alarms with device, condition, and time/date
stamp.
M. Real Time Trending
1. The EPS Automation shall support real time trending.
2. Real Time Trending shall display the following:
a. Load kW
b. Individual Generator kW
c. Individual Generator kVAR
*Note to Spec. Writer:
The following additional trending parameters apply to PowerLynx 3000 Systems only.
d.
e.
f.
g.
h.
i.
j.
Individual Generator Voltage
Individual Generator Amps per phase
Individual Generator frequency
Individual Engine RPM
Individual Engine Battery Voltage
Individual Engine Oil Pressure
Individual Engine Water Temperature
N. Each EPS Automation and Control component (nominal 24 Vdc) shall be rated to operate at
40 Vdc (typical for open circuited 24 Vdc chargers). To eliminate single points of failure,
external overvoltage protection components are not acceptable.
O. In the event of a failure of all EPS controls, the Generator frequency and voltage shall be
automatically switched to manual, preset, potentiometer control.
2.16
EPS AUTOMATION & CONTROLS ENVIRONMENTAL SPECIFICATIONS
A. The EPS Automation and Control System shall meet or exceed the following environmental
requirements:
1. Control Power – 16 to 40 Vdc (24 Vdc nominal)
2. Operating Temperature – 0 - 55° C
3. Humidity – 5 – 95% non-condensing
2.17
EPS METERING
A. All metering functions shall be 0.5% accuracy or better.
1. The following meters shall be provided for the system bus, and each individual
generator:
a. Voltmeter with 4-position selector switch to select three phases of voltage.
b. Ammeter with 4-position selector switch.
c. Kilowatt meter
d. Kilovar meter
e. Frequency Meter
f. Power Factor Meter
16346G-15
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
g. Synchroscope
B. The following additional metering shall be provided for each Engine:
1. Engine RPM Meter
2. Engine Battery Voltage Meter
3. Engine Oil Pressure Gauge
4. Engine Coolant Temperature Gauge
5. Engine Running Hour Meter
6. Engine Start Counter
7. Percent Engine Load
8. Local Control Switch Position
*Note to Spec. Writer:
Include the following metering when using a Caterpillar, B series or higher, Diesel
engine,ADEM II or III.
9. Atmospheric Pressure
10. Boost Pressure
11. System Battery Voltage
12. Left Turbo Inlet Pressure
13. Right Turbo Inlet Pressure
14. Engine Hour meter
15. Filtered Engine Oil Pressure
16. Engine Coolant Level Status
17. Overspeed Switch Status
18. Remote Emergency Stop Actuated status
19. Oil Filter Pressure Differential
20. Fuel Filter Pressure Differential
21. Engine coolant Temperature
22. Right Exhaust Temperature
23. Left Exhaust Temperature
24. Crankcase Air Pressure
25. Filtered Fuel Pressure
26. Right Air Filter Differential
27. Left Air Filter Differential
28. Fuel Consumption Rate
-- ☛ OR -
☛
Note to Spec. Writer – Select one
16346G-16
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
*Note to Spec. Writer:
Include the following metering when using a Caterpillar, B series or higher, Natural Gas
engine, ADEM II or III.
9. Oil Filter Pressure Differential
10. Gas Flow
11. Total Engine Hours
12. Unfiltered Oil Pressure
13. Coolant Pressure
14. Fuel Temperature
15. Air/Fuel Ratio
16. Inlet Air Pressure
17. Inlet Air Temperature
18. Inlet Air Flow
19. Individual Cylinder Ignition Timing
20. Individual Cylinder Temperature (where available)
C.
✄The
following metering shall be provided for each distribution breaker:
1. Voltmeter with 4-position selector switch to select three phases of voltage.
2. Ammeter with 4-position selector switch.
3. Kilowatt meter
4. Kilovar meter
5. Frequency Meter
6. Power Factor Meter
D.
✄Additional
Metering
1. Where indicated on the drawings, provide a separate customer metering compartment
with front hinged door.
2. Furnish and install current transformers for each meter. Current transformers shall be
wired to shorting-type terminal blocks.
3. Furnish and install ☛[potential transformers including primary and secondary fuses with
disconnecting means] [fused potential taps as the potential source] for metering as
shown on the drawings.
Note to Spec. Writer:
See Section 16901 Microprocessor Based Metering for functional descriptions.
2.18
PROTECTIVE RELAYS
✄ Note
☛
to Spec. Writer – Optional
Note to Spec. Writer – Select one
16346G-17
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
A. The switchgear manufacturer shall furnish and install, in the metal-clad switchgear, the
quantity, type and rating of protection relays as indicated on the drawings and described
hereafter in this specification.
B. Protective Relaying shall be microprocessor, high reliability, as specified below.
C. GENERATOR PROTECTIVE RELAYING
1. As a minimum, the following protective functions shall be provided for each Generator:
a. Instantaneous/Time Overcurrent (50/51) Relay, 3-phase, percent adjustable, utilizing
ANSI trip curves.
b. Under/Over Voltage (27/59) Relay, 3-phase, percent adjustable, percent reset, with
time delay.
c. Over/Under Frequency (81 O/U) Relay, single phase, percent adjustable, percent
reset, with time delay.
d. Reverse Power (32) Relay, 3-phase, percent adjustable with time delay.
e. Loss of Field (Reverse VAR, 40) Relay, 3-phase, percent adjustable with time delay.
f. Differential Phase Fault (87G) Relay, 3-phase, percent adjustable with time delay.
(Not available with the Basler BE1-GPS100)
g. Microprocessor Engine Governor Load Sharing and Soft Loading Control (65).
h. Automatic Synchronizer (15/25), adjustable sync window and sync window dwell
time.
i. Manual Paralleling Synch Check (25).
j. Var/Power Factor Controller (90 PF).
-- ☛OR1.Each Generator Circuit Breaker shall be provided with a *[Multilin SR-489], [Schweitzer
SEL 300G], [Basler BE1-GPS100], [Basler BE1-CDS220], [Discrete 50/51 with 87G],
protective relay.
2.
✄Provide
a Neutral Grounding Resistor for the protection of Generator windings. This
Neutral Grounding Resistor shall have the following features:
a. Rated at 200 amps for 10 seconds.
b. Ground Overcurrent trip protection (51G).
D. DISTRIBUTION PROTECTIVE RELAYING
1. As a minimum, the following protective function shall be provided for each Distribution
Circuit Breaker:
a. Instantaneous/Time Overcurrent (50/51) Relay, 3-phase, percent adjustable, utilizing
ANSI trip curves.
b. Lock-out (86) Relay (Utility Grade), manual reset.
-- ☛OR -1. Each Distribution Circuit Breaker shall be provided with a ☛[Multilin MIF II], [Schweitzer
SEL 551], [Basler BE1-851], [Siemens 7SJ602], protective relay.
☛
Note to Spec. Writer – Select one
to Spec. Writer – Optional
☛ Note to Spec. Writer – Select one
✄ Note
16346G-18
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
2. Lock-out (86) Relay (Utility Grade), manual reset.
2.19
EPS ANNUNCIATION SYSTEM
A. The EPS shall be provided with Annunciators to monitor and display critical status, fault,
and shutdown information. Two (2) distinct Annunciator types shall be provided:
1. Generator Annunciator – One (1) shall be provided for each generator.
2. System Annunciator – One (1) shall be provided for each system.
B. Annunciation shall comply with NFPA 110 requirements and shall conform to Instrument
Society of America (ISA) F3A standards. The Annunciation System shall be provided with four
(4) distinct types of annunciation points:
1. Status Points – These annunciation points will show the status of critical system or
generator set components. Status Annunciation points shall not sound the Annunciation
System Horn. They shall not require acknowledgement.
2. Generator Pre-Alarm Points – These annunciation points shall show fault conditions that
could jeopardize the ability of the EPS to function properly without immediate attention.
Generator Pre-Alarm Annunciation points shall sound the Annunciation System Horn.
They shall require acknowledgement. Generator Pre-Alarm Annunciation Points shall
reset automatically as the alarm condition is cleared.
3. Generator Shutdown Alarm Points - These annunciation points shall show fault
conditions that have caused the shutdown of one (1) or more generator sets. Generator
Shutdown Annunciation points shall sound the Annunciation System Horn. They shall
require acknowledgement. Generator Shutdown Annunciation points shall cause the
generator set to shutdown and the generator main to trip open. The generator main is
then “locked out” until the cause of the shutdown is corrected, the Engine Control Switch
is placed in Off/Reset, and then placed back in Auto or Manual operation.
4. EPS Alarm Points – These annunciation points shall indicate system wide fault
conditions. EPS Annunciation points shall sound the Annunciation System Horn. They
shall require acknowledgement.
C. The Annunciation System shall be equipped with a fast pulse horn (rated 80-95 dbA at two
feet), a Horn Silence Push-button and an Acknowledge Push-button. Any Generator PreAlarm, Generator Shutdown Alarm, or EPS Alarm shall cause the Alarm Horn to sound until
the Horn Silence button is depressed. Any subsequent alarms shall re-sound the horn. The
display shall operate such that any alarm point shall “flash” until acknowledged. One press
of the Acknowledge button shall return alarm points to “steady on” except the “first in” alarm,
which shall remain flashing. A second press of the Acknowledge button shall return the “first
in” alarm point to “steady on”.
D. The following Annunciator Points shall be furnished for each generator set:
a. Status Annunciation Points
1. Local Engine Control Switch Position
2. EPS Engine Control Switch Position
3. EPS Synchronization Selector Switch Position
4. Emergency Mode
5. Generator Circuit Breaker Open/Closed
16346G-19
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
6. Engine Running/Stopped
b. Pre-Alarm Annunciation Points
1. High Coolant Temperature
2. Low Oil Pressure
3. Low Coolant Temperature
4. Engine Battery Low Voltage
5. Engine Battery High Voltage
6. Battery Charger Failure
7. Engine Low Fuel [Applies to Diesel only]
8. Generator Failed to Synchronize
9. Local Engine Control Switch not in Auto
10. EPS Engine Control Switch not in Auto
11. EPS Synchronization Selector Switch not in Auto
12. Ground Fault Alarm
13. Communications Module Alarm
14. Rupture Basin Alarm [Applies to Diesel only]
15. Synchronizer Block Fault
16. Low Controller Battery
c. Shutdown Alarm Points
1. Engine Overcrank
2. Engine Overspeed
3. Engine Low Oil Pressure
4. Engine High Coolant Temp
5. Engine Low Coolant Level
6. Engine Remote Emergency Shutdown
7. Generator Circuit Breaker Tripped
8. Generator Loss of Field
9. Generator Reverse Power
10. Generator Undervoltage
11. Generator Over voltage
12. Generator Under frequency
13. Generator Over frequency
14. Emergency Stop
15. Ground Fault
16. Critical Low Fuel Shutdown [Applies to Diesel only]
17. Hi Winding Temperature Trip
E. The following Annunciator Points shall be furnished for each EPS:
a. Status Annunciation Points
1. Engine Status (1 for each Engine)
2. Engine Priority (1 for each Engine)
3. Master Mode Selector Switch position
16346G-20
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
4. EPS Test Switch Position
5. Load Shed Enabled
6. Load Shed Active
7. Load Shed Override
8. Gen Demand Priority Enabled
9. Gen Demand Priority Active
b. EPS Alarm Points
1. System in Emergency Mode
2. System not in Auto
3. Load Shed Override
4. Generator Bus Underfrequency
5. Master Shutdown
6. Controller Fault
7. Low Controller Battery
8. System Battery Charger Fault
2.20
EPS (CONTROL, SYNCHRONIZER, POWER TRANSDUCER AND PROTECTIVE) SETTINGS
A. EPS Setting changes and adjustments shall be password protected and easily adjustable in
selectable increments.
1. System Settings
2. Generator Settings
3. Generator Demand and Load Shed Settings
2.21
FUNCTIONAL SEQUENCES OF OPERATION
A. The EPS Automation shall be provided with the following Modes of Operation:
1. Automatic/Standby Mode
a. The automatic transfer switches are in the normal position serving utility power to the
loads.
b. The generator mains are open.
c. The automation is standing by to act in response to a run request from associated
Automatic Transfer Switches.
2. Emergency Mode
a. Automatic Transfer Switch Run Request
1. Automatic transfer switches send system a run request.
2. All available generators are started.
3. The first generator up to voltage and frequency is closed to the bus.
4. Unsheddable loads and Load Shed Priority 1 loads are powered in less than 10
seconds.
5. The remaining generators are synchronized and paralleled to the bus as they
come up to voltage and frequency.
6. As additional generators are paralleled to the emergency bus, Load Shed Priority
levels are added, powering their associated loads.
16346G-21
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
7. The system is now in Emergency Mode.
b. Exit from Emergency Mode
1. Automatic transfer switches sense the utility source is within acceptable
operational tolerances for a time duration set at the automatic transfer switch.
2. As each automatic transfer switch transfers back to utility power, it removes it’s
run request from the generator plant.
3. When the last automatic transfer switch has retransferred to the utility and all run
requests have been removed from the generator plant, all generator main circuit
breakers shall opened.
4. The generators are allowed to run for their programmed cool down period.
5. The system is now back in Automatic/Standby Mode.
3. No Load Test Mode
a. Entrance into No Load Test Mode
1. The No Load Test Switch is placed in the ON position.
2. All available generators are started.
3. The first generator up to voltage and frequency is closed to the bus.
4. The remaining generators are synchronized and paralleled to the bus as they
come up to voltage and frequency.
5. The system is now in No Load Test Mode.
b. Exit from No Load Test Mode
1. The No Load Test Switch is placed in the OFF position.
2. All generator breakers are opened.
3. The generators are allowed to run for their programmed cool down period.
4. The system is now back in Automatic/Standby Mode.
4. Utility Fail Test Mode
a. Entrance into Utility Fail Test Mode
1. The Utility Fail Test Switch is placed in the ON position.
2. A dry contact is sent to each ATS, which simulates a loss of utility within the ATS
controls.
3. The system enters into Emergency Mode as described in the “Emergency Mode”
sequence above.
b. Exit from Utility Fail Test Mode
1. The Utility Fail Test Switch is placed in the OFF position.
2. A dry contact is removed from each ATS, which simulates the return of utility
within the ATS controls.
3. The system exits into Emergency Mode as described in the “Emergency Mode”
sequence above.
B. When the Generator Sets are carrying the facility load, the EPS Automation shall support
two (2) sub-modes: Load Shed/Load Add, and Generator Demand Priority.
1. Load Shed Control
a. The System Controls shall include a Load Shed Control function to control the loads
served by the generator plant.
16346G-22
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
b. The Load Shed Control shall have one Essential Load Shed Priority Level for each
generator in the system plus one Non-Essential Load Shed Priority Level (which is
always shed in the Emergency Mode of operation).
c. The Load Shed Control shall control each of the distribution circuit breakers that are
shown on the drawings. Distribution circuit breakers to be controlled shall be
electrically operated. Each electrically operated distribution circuit breaker shall be
field selectable to be assigned to any of the available Load Shed Priority Levels.
1. Provide the following controls for each Essential Load Shed Priority Level
i. Shed Delay Timer, adjustable from 0 to 1024 seconds
ii. Add Delay Timer, adjustable from 0 to 1024 seconds
iii. Load Shed Override Selector (shed/auto//add)
iv. Status indicators to show whether the Priority Level is Added or Shed
2. Provide the following controls for each Non-Essential Load Shed Priority
i. Load Shed Override Selector (shed/auto//add)
ii. Status indicators to show whether the Priority Level is Added or Shed
3. Additionally, the Load Shed Controls shall have:
i. Load Shed Control Switch (On/Off)
ii. User-settable Load Shed % (as a function of on-line generator capacity)
iii. User-settable Load Shed Time Delay
iv. User-settable Load Add % (as a function of on-line generator capacity)
v. User-settable Load Add Time Delay
vi. User-settable Bus Under frequency Set point
vii. User-settable Bus Under frequency time delay
viii. Bus Under frequency Reset Pushbutton
ix. Bus Under frequency indicator
4. Conditional Load Shed: Upon entrance into Emergency Mode of operation, the
Load Shed Control shall shed all Essential and Non-Essential loads. As
generators come to the bus, Essential Priority Level loads shall be added
conditionally based on the number of generators on line. When the first
generator comes to the bus, Priority Level 1 loads shall be added; Second
generator, priority 2, etc. After a time delay that allows all operational generators
to come to the bus, Load Shed Mode shall shift to Load Sensitive Mode.
5. Load Sensitive Load Shed – After all generators have been given sufficient time
to come to the bus, load shed shall shift to “Load Sensitive” mode. The system
shall compare current generator on-line capacity (in kW) to current load
requirements. If surplus capacity is greater than the calculated Load Add
setpoint, after the Load Add Time Delay the next Load Shed Priority shall be
added. This calculation shall continue until all Sheddable Loads are added, or
until surplus capacity is less than the calculated Load Add setpoint. If surplus
capacity is less than the calculated Load Shed setpoint, after the Load Shed
Time Delay the next Load Shed Priority shall be shed. This calculation shall
continue until all Sheddable Loads are shed, or until surplus capacity is greater
than the calculated Load Shed setpoint. The Load Shed Control, in its automatic
shedding and adding of loads, shall not override any manual load shed/add
operation.
16346G-23
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
6. Should the load bus frequency fall below the user selected bus underfrequency
setpoint for a period longer than the bus underfrequency time delay, then all
Priority Level loads shall be shed and load addition shall not resume until the
operator has depressed the Bus Underfrequency Reset button. The bus
underfrequency protection shall override any manual load add operation.
Note to Spec. Writer:
The following on applies to systems with two or more generators
2. Generator Demand Priority Control
a. The System Controls shall include a Generator Demand Priority Control function to
automatically match the on-line generator capacity to the loads to avoid unnecessary
operation of all the generators when the loads are low.
b. The following controls shall be provided for each generator:
1. User-settable Generator Priority Selector
2. Status indicator for the Generator Priority Selected
3. Status indicator for generator On-line or Off-line
c. The Generator Demand Priority Control shall have the following controls:
1. Generator Demand Priority Control Switch (On/Off)
2. User-settable Generator Remove % (as a function of a single generator
capacity)
3. User-settable Generator Remove Delay
4. User-settable Generator Add % (as a function of a single generator capacity)
5. User-settable Generator Add Delay
d. Upon entrance into Emergency or Load Management modes, all generators shall be
started and paralleled to the bus. After the Remove Time Delay, generators shall be
removed from the bus as a function of the generator percentage loading by the user
selected Generator Remove time delay. Generators shall be removed from the bus
in descending priority. Should the generator percentage loading increase to the user
selected Generator Add limits for the user selected Add Delay, the next generator
shall be started, synchronized and paralleled to the bus. Generators shall be added
to the bus in ascending priority order. Should the generator plant ever reach 95%
loading, the next priority generator shall be started and added to the bus with no
time delay.
2.22
SPARE PARTS
A. The Emergency Power System Supplier shall have factory-trained technicians that maintain
a stock of spare parts and programming tools.
B. Provide a complete listing of available spares parts with O&M Documents.
C.
✄At
a minimum, provide the following spare parts for the Generator Control Switchgear:
1. One of each type of automation processor (including CPU, Power Supply, and I/O)
2. One of each component required for synchronization, load control, and VAR control
3. One of each control relay
✄ Note
to Spec. Writer - Optional
16346G-24
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
4. (10) of each control fuse
5. (2) of each Medium Voltage fuse
6. One of each power transducer
*Note to Spec. Writer:
The following options apply to PowerLynx 3000 products only.
2.23
✄LONG
TERM HISTORICAL TRENDING
A. Long Term Historical Trending shall log EPS historical data on the system hard drive. This
data shall be displayed in a strip chart format. Historical data file format shall be “dbf” to
facilitate manipulation of these files in other software programs. Long Term Historical
Trending shall record and display the following for each Generator set:
1. Battery Volts
2. Coolant Temperature
3. Coolant Level Status
4. Engine RPM
5. Fuel Pressure
6. Fuel Usage Rate
7. Percent Engine Load
8. Engine Hour Meter
9. kW
10. kVAR
11. Average 3 phase Current
12. Average 3 phase Voltage
13. Local Engine Control Switch Position
14. Local E-stop Position
15. Alarm Status
16. Pre-Alarm Status
*Note to Spec. Writer:
The following Trending information is available when using a Caterpillar, B series or higher,
Diesel engine, ADEM II or III.
17. Total Fuel Used
18. Oil Pressure
19. Oil Filter Differential Pressure
20. Intake Air Temperature
21. Right Air Filter Differential Pressure
22. Right Turbo Pressure
✄ Note
to Spec. Writer - Optional
16346G-25
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
23. Left Turbo Pressure
24. Boost Pressure
*Note to Spec. Writer:
The following Trending information is available when using a Caterpillar, B series or higher,
Natural Gas engine, with ADEM II or III.
17. Oil Pressure Differential
18. Gas Flow
19. Total Engine Hours
20. Unfiltered Oil Pressure
21. Coolant Pressure
22. Fuel Temperature
23. Air/Fuel Ratio
24. Inlet Air Pressure
25. Inlet Air Temperature
26. Inlet Air Flow
27. Individual Cylinder Temperature (where available)
2.24
✄REMOTE
NOTIFICATION [POWERLYNX 3000 ONLY]
A. The system shall be optionally capable of providing several types of remote notification.
Notification shall be triggered by user specified events and/or alarms. Means of notification
shall include:
1. Voice notification via cell phone or land lines.
2. Fax notification
3. Pager notification
4. Email notification
2.25
✄REMOTE
ANNUNCIATION [POWERLYNX 3000 ONLY]
A. An NFPA compliant remote annunciator shall be provided by the EPSS.
2.26
✄EPS
SITE MONITORING [POWERLYNX 3000 ONLY]
A. The EPS shall be provided with web-based site monitoring services. This service shall be
capable of monitoring and controlling multiple EPS sites, with no geographical limitation.
Web-based EPS access shall employ high security to insure against unauthorized EPS
access.
B. This monitoring service shall be Caterpillar PointGuard or equal.
✄ Note
✄ Note
to Spec. Writer - Optional
to Spec. Writer – Optional
16346G-26
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
C. The site monitoring service shall support the following means of communications:
1. Cellular Telephone
2. Landline Telephone
3. Satellite Communications
4. Virtual Private Network
5. Cable Modem
6. Frame Relay
D. Available services for the EPS shall include:
1. Continuous monitoring for alarms
2. Automated alarm notification
3. Data gathering and management
4. Report Generation
5. Site Control
*Note to Spec. Writer:
The following options apply to all PowerLynx products.
2.27
✄REMOTE
POWER MONITORING SYSTEM
1. A PC based Remote Power ☛[Monitoring][Monitoring and Control] System shall be
provided to monitor breaker status, alarms, metering and other operating parameters.
All ☛[control functions, displays metering][displays, metering] and other information
described previously in these specifications shall be available to the operator of the
Remote System.
2. The Remote System shall be designed such that its operation shall not in any way
impede the selected automatic operation of the System Control. Any failure of the
Remote System shall have no impact to the automatic operation of the System Control.
3. The Remote System shall provide the identical screens and resolution at the Remote
Screen as seen at the Switchgear HMI as noted above.
4. The Remote System shall communicate with the System Control via high speed
network.
5. A PC workstation shall be provided by ☛[owner][EPSS] for the Remote Power System
with the following minimum features:
a. Intel Pentium CPU operating at 2 GHz
b. 256 MB RAM
c. 20 GB Hard Drive
d. 3.5 inch Floppy Disk Drive
e. 19 inch LCD SVGA Color Monitor
f. Keyboard and Microsoft Mouse
g. 56Kbps modem
☛
☛
Note to Spec. Writer – Select one
Note to Spec. Writer – Select one
16346G-27
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
h. Network Interface Card
i. Windows 2000 or Windows NT
j. Printers
1. Laser printer for historical reports
2. Line printer for alarm and event reports/logs
2.28
✄BUILDING
MANAGEMENT SYSTEM INTERFACE
1. The system shall allow interface from the user’s Building Management System.
2. The interface shall be designed such that the Building Management System or
external user interface can in no way compromise the integrity or interfere with the
critical operations of the EPS Control System.
3. Interface to the user’s Building Management System shall be via ☛[RS-232] [RS-485]
[Ethernet] communications, utilizing ☛[MODBUS RTU] [MODBUS/TCP] Protocol.
PART 3
3.01
EXECUTION
FACTORY TESTING
A. The switchgear shall be completely and functionally tested in the manufacturer's facility prior
to shipment. For systems shipped in multiple sections, the switchgear shall be quality
tested utilizing the plug-together wiring system which shall be unplugged prior to shipment
and plugged together again when the equipment is installed in order to maintain the integrity
of the manufacturer's quality assurance testing.
B. The following standard factory tests shall be performed on the circuit breaker element
provided under this section. All tests shall be in accordance with the latest version of ANSI
standards.
1. Alignment test with master cell to verify all interfaces and interchangeability
2. Circuit breakers operated over the range of minimum to maximum control voltage
3. Factory setting of contact gap
4. One-minute dielectric test per ANSI standards
5. Final inspections and quality checks
C. The following production test shall be performed on each breaker housing:
1. Alignment test with master breaker to verify interfaces
2. One-minute dielectric test per ANSI standards on primary and secondary circuits
3. Operation of wiring, relays and other devices verified by an operational sequence test
4. Final inspection and quality check.
✄ Note
✄ Note
D.
✄The
E.
✄Factory
manufacturer shall provide three (3) certified copies of factory test reports.
tests as outlined above shall be witnessed by the owner’s representative.
to Spec. Writer – Optional
to Spec. Writer – Optional
16346G-28
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
1. The manufacturer shall notify the owner two (2) weeks prior to the date the tests are to
be performed.
3.02
INSTALLATION
A. Store equipment in a clean, dry place. Protect from weather, dirt, fumes, water,
construction debris, and physical damage.
B. The Contractors shall install all equipment per the manufacturer’s instructions, contract
drawings and National Electrical Code.
C. The equipment shall be installed and checked in accordance with the manufacturer’s
recommendations. This shall include but not limited to:
1. Checking to ensure that the pad location is level to within 0.125 inches per three foot of
distance in any direction.
2. Checking to ensure that all bus bars are torqued to the manufacturer’s
recommendations.
3. Assembling all shipping sections, removing all shipping braces and connecting all
shipping split mechanical and electrical connections.
4. Securing assemblies to foundation or floor channels.
5. Measuring and recording Megger readings phase-to-phase, phase-to-ground, and
neutral-to-ground (four wire systems only).
6. Inspecting and installing all circuit breakers in their proper compartments.
D. The assembly shall be provided with adequate lifting means and shall be capable of being
moved into installation position and bolted directly to ☛[Contractor supplied floor sills to be
set level in concrete per manufacturer’s recommendations] [the floor without the use of floor
sills providing the floor is level to 1/8 inch per 3-foot distance in any direction]. Provisions
shall be made for jacking of shipping groups, for removal of skids or insertion of equipment
rollers. Base of assembly shall be suitable for rolling directly on pipes without skids. The
base shall be equipped with slots in the base frame members to accommodate the use of
pry bars for moving the equipment to its final position.
3.03
FIELD QUALITY CONTROL AND STARTUP
A. Provide the services of a qualified factory-trained manufacturer’s representative for start-up
of the equipment specified under this section for a period of ✎_____ working days. The
manufacturer’s representative shall provide technical direction and assistance to the
contractor in general assembly of the equipment, connections and adjustments, and testing
of the assembly and components contained therein.
B. The manufacturer’s representative shall provide inspection of the final installation. The
manufacturer’s representative shall perform site start-up and functional checkout of the
Switchgear. Upon completion of the manufacturer's start-up and checkout, the manufacturer
shall demonstrate to the customer all the automated sequences of operation as specified
herein.
☛
✎
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Note to Spec. Writer – Insert data in blanks
16346G-29
1/06
METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
C. Functional Testing shall include testing of the following as a minimum:
1. Pre-startup inspection of the generator, dc system, control wiring, power cables, and
switchboard/switchgear.
2. Crank and run engine/generators at the local engine control panel.
3. Crank and run engine/generators from the HMI touchscreen.
4. Verify engine/generator alarms and shutdowns to HMI.
5. Verify protective relay/breaker trip units are set to coordination study if applicable.
6. Test all modes of operation.
7. Verify and test all system alarms to HMI.
8. Test with EPS with Load.
D. Upon completion of the manufacturer's start-up and checkout, the manufacturer shall
demonstrate to the customer all the automated sequences of operation as specified herein.
E. The Contractor shall provide three (3) copies of the manufacturer’s field start-up report.
3.04
TRAINING
A. The Contractor shall provide a training session for up to five (5) owner’s representatives for
✎ _______ normal workdays at a jobsite location determined by the owner.
B. Upon successful completion of a demonstration of the automated sequences of operation
by the manufacturer and acceptance by the customer, the manufacturer shall provide an
eight-hour "hands-on" training course for the customer's operating personnel which shall
cover the following topics:
1. Overall System Description and Theory of Operation
2. Modes of Operation as listed in the Sequence of Operations to include at a minimum:
a. Automatic Operation
b. Manual Operation
3. Engine Safeties and Protective Relaying
4. Recommended System Check Lists and Log Sheets
5. Recommended Preventive Maintenance
C. The training session shall be conducted by a manufacturer’s qualified representative.
Training program shall include instructions on the assembly, circuit breaker, protective
devices, and other major components.
3.05
FIELD ADJUSTMENTS
A. The relays shall be set in the field by a qualified representative of the Emergency Power
System Supplier, retained by the Contractor, in accordance with settings designated in a
coordinated study of the system as required elsewhere in the contract documents.
B. The Contractor shall perform field adjustments of the protective devices as required to place
the equipment in final operating condition. The settings shall be in accordance with the
approved short-circuit study, protective device evaluation study and protective device
coordination study.
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METAL-CLAD EMERGENCY GENERATOR PARALLELING
SWITCHGEAR – MEDIUM VOLTAGE
SECTION 16346G
C. Necessary field settings of devices and adjustments and minor modifications to equipment
to accomplish conformance with an approved short circuit and protective device
coordination study shall be carried out by the Contractor at no additional cost to the owner.
16346G-31
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