Download mv motor control centers fvnr spec

Specification for Tender
840984200
General Specification for MV Motor
Control Centers – Direct on Line
1. General
2. Product
3. Execution
Last update : 2017-05-06
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Specification for Tender
840984200
Table of contents:
1. General
………………………………………………………………………………………………………….. 3
1.1 Section includes…………………………………………………………………………………….
3
1.2 References………………………………………………………………………………………….. 3
1.3 Medium voltage controllers................................................................................................................ 3
1.4 Submittals…………………………………………………………………………………………..
3-4
1.5 Quality Assurance………………………………………………………………………………….. 4
1.6 Qualifications………………………………………………………………………………............. 4
1.7 Delivery, Storage, and Handling……………………………………………………........................ 4
1.8 Operation and maintenance manuals…………………………………………….............................. 4
1.9 Extra products……………………………………………………………………………................. 5
2. Product…………………………………………………………………………………………….... 5
2.1 manufacturers …………………………………………………………………………………….... 5
2.2 Medium Voltage Motor Controller Assembly…………………………………………………........ 5 - 6
2.3 Ratings…………………………………………………………………………………………........ 6 - 7
2.4 Components………………………………………………………………………………….. ........ 7 - 8
2.5 Power and Earth Busbar (Motor Control Center Construction Only)………………….................... 8
2.6 Wiring / Terminations………………………………………………………………………............ 8
2.7 Motor Protection…………………………………………………………………………................. 8
2.8 Metering......……………………………………………………………………………………….... 8
2.9 Controllers.... ………………………………………………………………………………….......... 8 - 10
2.10 Mechanically Latched Contractor………........………….........………………………………........ 10
2.11 Incoming Line sections to MCC…………………………………………………………………... 10
2.12 Fabrication…………………………………………………………………………………............. 10
2.13 Factory finishing…………………………………………………………………………............... 11
2.14 Related Sections…………………………………………………………………………………..... 11
3. Execution……………………………………………………………………………………………. 11
3.1 Examination Specified Components………………………………………………………............... 11
3.2 Installation………………………………………………………………………………………….. 11
3.3 Field Quality Control……………………………………………………………………………….. 11 - 12
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Specification for Tender
840984200
1. General
1.1 Section includes
1.1.1 The Contractor shall furnish and install the medium voltage controllers as specified herein and as
shown on the contract drawings.
1.1.2 Controller application describes Full Voltage Non Reversing starters for Induction Motors.
1.1.3 One-high construction.
1.1.4 Medium voltage motor control equipment shall be compatible with the medium voltage primary
equipment.
1.2 References
1.3 Medium voltage controllers shall be designed, manufactured, assembled and tested in accordance
with the following standards:
1.3.1
IEC 60694
Commons specifications for high-voltage switchgear and controlgear standards
1.3.2
IEC 62271-200 Ac metal-enclosed switchgear and controlgear for rated voltages above 1 kV
and up to and including 52 kV
1.3.3
IEC 60470
high voltage alternating current contactors and contactor based motor starter
1.3.4
IEC 60282-1 high voltage fuses: limiting fuses
1.3.5
IEC 62271-102 alternating current disconnectors and earthing switches
1.3.6
IEC 60255
measurement relay and protection unit (SEPAM)
1.3.7
IEC 60044-1 Instrument transformers - Part 1: current transformers
1.3.8
IEC 60044-2 Instrument transformers - Part 2: voltage transformers
1.3.9
IEC 60044-8 Instrument transformers - Part 8: low power current transducers
1.3.10
IEC 61958
High-voltage prefabricated switchgear and controlgear assemblies
Voltage presence indicating systems
1.3.11
IBC 2000
Seismic Standards
1.3.12
The equipment shall also comply with the following standards:
- NEMA ICS 3 Part 1 & 2 , 1993 (R2000),
- UL 347, EEMAC E14-1. Arc Resistant,
- ANSI C19.7,
- ANSI C: 37.20.7, 200X, Arc Resistant.
1.4 Submittals
1.4.1 FOR REVIEW/APPROVAL
1.4.1.1 The following information shall be submitted to the Engineer:
- Master drawing index.
- Front view elevation.
- Floor plan.
- Top view.
- Schematic diagram.
- Nameplate schedule.
- Component list.
- Conduit entry/exit locations.
- Assembly ratings including:
- Short circuit rating.
- Voltage.
- Continuous current.
- Basic impulse level.
- Major component ratings including:
- Voltage.
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Specification for Tender
840984200
- Continuous current.
- Interrupting ratings.
- Cable terminal sizes.
1.4.1.2 Where applicable the following additional information shall be submitted to the Engineer:
- Connection details between close-coupled assemblies.
- Composite floor plan of close-coupled assemblies.
- Key interlock scheme drawing and sequence of operations.
- 4.1.3 Submit six (6) copies of the above information.
1.4.2 FOR INFORMATION
1.4.2.1 When requested by the Engineer the following product information shall be submitted:
- Product brochures.
- Product datasheets.
1.4.2.2 Test Certificates
1.4.3 FOR CLOSE-OUT
1.4.3.1 The following information shall be submitted for record purposes at time of shipment:
1.4.3.2 Final as-built drawings and information for items listed in Article 1.3.1.
1.4.3.3 Wiring diagrams.
1.4.3.4 Installation information.
1.4.3.5 Submit six (6) copies of the above information.
1.5 Quality Assurance
1.5.1 In accordance with (customer to specify section)
1.5.2 Manufacturer: Company specializing in medium voltage metal-enclosed motor controller with at
least five years documented experience. The manufacturer of the motor controller must be the same as the
manufacturer of the circuit breaker switchboard.
1.5.3 Type tests shall be carried out in accordance with IEC 62271-200 provided that additional
requirements specified (e.g. busbar insulation) are taken into consideration. Certificates shall be available
upon request. Certificates issued/supported by independent testing laboratories are preferred. Components
installed within the assembly shall be type tested in accordance with the applicable IEC standards.
Certificates obtained from the component Manufacturers shall be made available at the request of the
Principal.
1.6 Qualifications
1.6.1 For the equipment specified herein, the manufacturer shall be ISO 9000.
1.6.2 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.
1.7 Delivery, Storage, and Handling
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.
1.8 Operation and maintenance manuals
1.8.1 Three (3) copies of the equipment operation and maintenance manuals shall be provided at time of
shipment.
1.8.2 Operation and maintenance manuals shall include the following information:
1.8.2.1 Instruction books and/or leaflets.
1.8.2.2 Recommended spare parts list.
1.8.2.3 Drawings and information required by Article 1.3.
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Specification for Tender
840984200
1.9 Extra products
Manufacturer shall provide a recommended Spare Parts List, included as part of the Operation and
Maintenance Manuals.
2. product
2.1 Manufacturers
2.1.1 The Medium Voltage Motor Controllers shall be Merlin Gerin type or approved equal.
2.1.2 Current limiting fuses shall of suitable manufacture to ensure the coordination and the integrity of the
system. The blown fuse indicator shall be an "Extended Travel” type with a minimum of 25mm of travel.
Fuses shall have a 50,000 Amperes interrupting rating.
2.1.3 Fuses shall be non-disconnect type with provisions for removal and replacement from the front of the
motor controller
**************************************************************************************
2.1.4 Select the appropriate optional Fuselogic description and/or features
**************************************************************************************
2.1.5 {Option} The Medium Voltage Motor Controllers shall be equipped with an optional Fuselogic
blown fuse protection system to automatically open the contactor, when a fuse interrupts. The system shall
also prevent single phasing conditions by blocking the closing of the contactor when a fuse is blown or if a
fuse is not installed.
2.2 Medium Voltage Motor Controller Assembly
2.2.1 Controllers to be supplied in modular one-high, one controller per structure construction. Stacked or
tiered controllers are not acceptable. The equipment shall be factory-assembled (except for necessary
shipping splits) and operationally checked. The width of a standard motor starter shall be 375 mm. The
width of an enclosure with an integrated power factor correction capacitor shall be 750 mm.
2.2.2 The enclosure rating shall be IP3X. {Option:} [IP4X], [IP31], [IP41].
2.2.3 The motor controller shall [consist of a single section] [be a multiple section line-up] [be close
coupled to MetalClad Switchgear], and be of indoor construction
2.2.4 The medium voltage motor controller assembly shall be partitioned into the following distinct
compartments:
2.2.4.1 Busbar compartment
2.2.4.2 Low Voltage compartment
2.2.4.3 Load compartment containing the fuses, contactor, instrument transformers, and customer cable
terminations and cable-earthing switch.
2.2.5 Disconnector and contactor assemblies, including current limiting fuses, shall be of the componentto-component type. There shall be no bolted connections between the contactor finger assembly and the
customer load terminals.
2.2.6 The equipment shall be designed for front accessibility only to allow installation against a wall.
Standard rear access shall be provided. A viewing window shall be provided as standard to permit
verification from the rear of the enclosure that an operator is accessing the proper cubicle by ensuring that
the appropriate front door is open.
2.2.7 Cable entry or exit shall be [bottom] [top] [Bottom and top].
2.2.8 {Option} [The enclosure shall be Internal Arc Class as defined in Annex A of 62271-200]. {Option}
[A tunnel shall be provided to divert the hot gasses.] [The tunnel height shall be 440mm]. ****Required
when ceiling height is 2 meters or less above the top of the equipment {top cable entry or exit is not
available}.
2.2.9 In establishing the requirements for the enclosure design, consideration shall be given to such
relevant factors as controlled access, tamper resistance, protection from ingress of rodents and insects.
2.2.10 Motor controller shall not require ventilation openings to aid in cooling of the associated
components.
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Specification for Tender
840984200
2.2.11 Flexible power conductors shall interconnect the main contactor with the motor load terminals.
Flexible power conductor terminals shall be of the swage 360º radial cold-fused compression type
connections. These connections shall be maintenance free, never requiring torque.
2.2.12 The motor controller shall be low maintenance designed to reduce the requirement for annual/
periodic maintenance of the equipment. Equipment with scheduled maintenance intervals of one or more
years is preferred.
2.2.13 A low voltage compartment to accommodate control circuit terminal blocks, control components
[and PowerLogic metering]. The low voltage compartment shall be located at the top of each vertical
section. The interior of the Low Voltage compartment shall be painted white.
2.2.14 Shipping splits shall be a maximum of 5 sections (1875 mm) to minimize the number of overlapped
main bus joints and on site labour.
2.2.15 Medium voltage motor control equipment shall be compatible with Merlin Gerin Distribution
Equipment.
2.3 Ratings
2.3.1 System Voltage: [2.4] [[3.3] [4.16] [6.6] [7.2] [..] kV, three phase, [solidly earthed] [resistor earthed
through a [..] ohm resistor] [unearthed], [three phase 3 wire] [three phase 4 wire]. Neutral Busbar not
available.
2.3.2 Main Busbar Capacity: [630] [1250] [2500] [3150] amperes, continuous.
2.3.3 Medium Voltage Motor Controllers shall have the following ratings with HRC fuses
Motor Controller Ratings
Rated voltage (kV)
7.2
Rated insulation level
power frequency withstand voltage 50 Hz - 1
20
min (rms kV)
lightning impulse withstand voltage 1.2/50 µs
60
(kV peak)
Frequency (Hz)
50/60
Nominal current and maximum short time withstand current (1)
rated current
In
200
Short time withstand current Ith max.
(kA/3 s) 40
(kA/2 s) 50
Disconnector
0.25 second
50
Equipment (after fuses)
1 second
4.2
30 seconds
1.7
Earthing Switch Fault Close
kA Symmetrical
5kA
kA Peak
14kA
Internal arc withstand (Optional)
second
25kA
0.50 second
40kA
0.25 second
50kA
Altitude Rating
metres
1000
Contactor Rating
rated current
Electrical Endurance
Mechanical Endurance
Latched
Last update : 2017-05-06
In
Standard
200
250,000
2,500,000
250,000
7.2
20
60
50/60
400
(kA/3 s) 40
(kA/2 s) 50
50
7.8
3.0
5kA
14kA
25kA
40kA
50kA
1000
400
250,000
2,500,000
250,000
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Specification for Tender
Short Circuit Interrupting Amps (RMS Sym.)
Short Circuit Withstand at Rated Voltage
(fused)
kA Symmetrical
kA Peak
Short time withstand current Ith max.
(1 second)
(30 seconds)
Chopping Current
( Avg. RMS
Amps)
Switching Frequency
(Ops per hour)
Maximum Closing Time
(milliseconds)
Maximum Opening Time
(milliseconds)
840984200
6.3kA
6.3kA
50
130
50
130
4.0
2.4
0.5
6.0
2.4
0.5
1200/300 latched
100 or less
30ms or less
1200/300 latched
100 or less
30 or less
350 or more
(delayed)
2.4 Components
2.4.1 The disconnector shall be a two position externally operated manual three-pole device, such that in
the open position it earths and isolates the line side from the load compartment. The switch-operating
handle shall be removable. The operating mechanism shall be rugged, simple and shall have provisions for
three padlocks in the on or off position. [A changeover contact shall be provided for remote position
indication of the disconnector.] [Provide key interlocks to coordinate with….]
2.4.1.1 Mechanical Interlocks: interlock shall be provided to prevent the opening of the high voltage access
door with the no-load disconnector closed. To access the medium voltage compartment, the no-load
disconnector must be opened to the earth position. The interlock must be directly attached to the operating
mechanism and should not rely on long cables and linkages.
2.4.1.2 All interlocks shall not require adjustments over the life of the equipment. This shall be
demonstrated by a test of 10 times the industry standard’s maximum.
2.4.1.3 A viewing port shall be installed in the disconnector enclosure to enable visible verification of the
2.4.2 {Option:} A cable earthing switch shall be provided. The earthing switch shall be used to earth the
load cables. It is shall be mechanically interlocked with the disconnector and be operated using the same
handle. The earthing switch shall have a spring operated quick make device capable of making 14kApk.
The cable earthing switch shall be mounted in the load box at the motor lead terminals. The earthing switch
shall be a maintenance free device.
2.4.3 Fuses shall be of the current limiting type. The blown fuse indicator shall be an "Extended Travel”
type with a minimum of 25 mm of travel. Fuses shall have a 50,000 Amperes interrupting. The fuses shall
incorporate special time/current characteristics for motor service allowing proper coordination with the
contactor and overload relay for maximum protection. This coordination shall be such that under a low
fault condition the interrupting rating and dropout time of the contactor shall be properly coordinated with
all possible fuse sizes to eliminate contactor racing. The power fuses shall be vertically mounted permitting
easy inspection and replacement without the need for removing the contactor.
2.4.3.1 {Option} Provide FuseLogic shunt trip, single phase protection system using DIN style fuses (or
equal) to automatically open the vacuum contactor when a fuse blows or a fuse is not installed. This is
intended for backup protection only to the motor overload relay. The system shall further prevent potential
single phasing conditions by blocking the closing of the contactor when a fuse is blown or a fuse has nor
been installed. (Provide optional changeover contact for trip indication}.
2.4.4 The vacuum contactor shall be with-drawable and magnetically held [mechanically latched] rated
[200 A] [400 A] with single-break high-pressure type main contacts. The vacuum contactor contact wear
shall be easily checked with the use of a “go/no-go” gauge, included with each controller. {Option} A
built-in test circuit shall be included within each controller to permit checking the control and pilot circuits,
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Specification for Tender
840984200
with the medium-voltage de-energized and isolated and the contactor in its normal. A viewing window
shall be provided to view the contactor status.
2.4.5 The contactor shall withdraw on a rail system. When the contactor is lowered it will disconnect the
contactor and when raised, it will connect the contactor and lock it in position.
2.4.6 A viewing port shall be provided to view the contactor status.
2.4.7 Accessories
2.4.7.1 The controller mounted control power transformer (CPT) shall be [300VA], [500VA], [750VA],
2kVA], and be 60kV BIL rated. Fuse holder with two primary current limiting fuses.
2.4.7.2 The controller mounted open delta voltage transformer shall be provided for metering and
protection.
2.5 Power and Earth Busbar (Motor Control Center Construction Only)
2.5.1 When controllers are grouped together in a line-up, the horizontal main busbar shall be located in its
own compartment. To allow for ease of maintenance or extension of line-ups, the main busbar shall be
front, rear, top, and side accessible.
2.5.2 Main power busbar bars shall be tin-plated copper and braced for 50 kA 2-seconds (40 kA 3
seconds). All busbar shall be braced to withstand, without damage or deformation, maximum let-through
current permitted by the current limiting fuses.
2.5.3 Copper earth busbar shall be continuous and extend from one end of the motor control centre to the
other through each vertical section. Minimum size to be 6.35 mm by 50mm.
2.6 Wiring / Terminations
2.6.1 Standard control wire shall 1.5mm2.
2.6.2 Current transformer circuits shall utilize 2.5 mm2 wires.
2.6.3 Controllers shall be complete and control wires including terminations for external connections.
2.6.4 Phase sequencing shall have proper identification and all wires shall have suitable markings at all
terminations.
2.7 Motor Protection
Provide a microprocessor-based multi-function, motor protective relay that monitors three-phase ac current
and makes separate trip and alarm decisions based on pre-programmed motor current and temperature
conditions. [Sepam Series (20), (40) (80)]
2.8 Metering
2.8.1 Microprocessor-Based Metering Package
2.8.1.1 Where indicated on the drawings, provide a UL Listed solid-state microprocessor-based metering
package with optional waveform capture. Metering package shall be a PowerLogic circuit monitor.[Each]
PowerLogic Circuit Monitor, [with digital display][with waveform capture][stand-alone section[s]
containing a controller shall include the following [as shown on the drawings]:
- [CM 3000] [CM 4000]
- [Wired for communications; to other [devices.]
- PowerLogic digital meter. [PM620] [PM 650] [PM820] [PM 850]
- Other: [..]
2.8.2 Auxiliary Devices
2.8.2.1 {Option} Provide fixed mounted potential transformer, fused type, 3 phase open delta as indicated
on the contract drawings. These shall be used for the MPR [and meter].
2.9 Controllers
2.9.1 The controllers shall be designed to accommodate motors of the size and type as shown on the
drawings.
2.9.2 The controllers shall be provided by a single manufacturer with a complete product offering (refer to
Article 1.1.2 of controllers to accommodate the following motor types and starting methods:
2.9.2.1 Induction Motor Full Voltage Start.
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Specification for Tender
840984200
2.9.3 Provide the following equipment for type controller indicated in Article 2.07.A, and the contract
drawings.
2.9.3.1 Each Induction Motor Full Voltage Non Reversing Controller shall include:
- Medium Voltage Compartment:
- One - three-pole non-load break isolating disconnector.
- Current limiting power fuses.
- One - Draw-out three-pole vacuum contactor assembly.
- {Option} One - Control circuit transformer [300VA] [500VA] [750VA] [2kVA]
- {Option} Two - Control circuit primary current limiting fuses.
- Set - Electrical and Mechanical interlocks.
- Three - Load terminals. An anti-rotational terminal pad shall have provision for two hole cable
lugs.
- Current Transformer Options: (Max 3)
. Each section containing a contactor shall include the following [as shown on the drawings]:
[one] three phase donut Type Low Power Current Transformer [use with SEPAM relay] Current
transformer accuracy shall be equal to or higher than ANSI metering class.
. [one] [two] three phase donut type current transformers [..]: 5A. or [..]: 1A
. [one] Zero Sequence CT [2000:1] [50:5]
- {Option} Provide two sets of thermal sensing optical probes for instant temperature detection
placed at points with the most significant temperature rise. The probes shall be designed to withstand the
constraints related to the medium voltage environments. The optical technology shall provide reliable
measurements and give the system a long service life. The probes shall be factory-built assemblies
comprised of 6 sensors, optical connections and a monitoring module.
- Low-Voltage Compartment Door:
- {Option} One - Motor protection relay (MPR) Sepam Series [20][40][80]where specified
- {Option} One - Microprocessor metering package where specified.
- Mounting space for any additional low voltage control, protection, or metering specified.
- Components to be directly mounted on door - size of door cut-outs to match size of mounted
component.
- Low-Voltage Compartment:
- Two - Control relays.
- One - Control circuit secondary fuse.
- Set of control circuit terminal blocks.
- Customer terminal blocks with screw compression type connections.
- Mounting space for any additional low voltage control, protection, or metering specified.
- Operator panel
- Disconnector operator mechanism.
- Mechanical open-close indication.
- Disconnector Viewing Window.
- two – 22 mm pushbuttons.
- two 22 mm indicating lights.
- {Option}Elapsed time meter .
- {Option} Key Interlocks: shall be provided for the disconnector operating mechanism as indicated
on the drawings].
2.9.4 {Option} Provide [compression lugs] for terminating cables onto the motor controller terminal pads.
2.9.5 {Option} Anti-condensation space heaters rated 220 VAC, 250W shall be supplied in each section.
Control power shall be supplied [supplied by owner] [by internal controller mounted CPT] {and shall be
supplied with} [thermostats] [humidistat.]
2.9.6 {Option} Cable earthing switch. To facilitate cable testing in the high voltage compartment, the
earthing switch can be returned to the open position with the MV compartment door open. In this position
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Specification for Tender
840984200
interlocks are to be provided to prevent replacement of the high voltage access panel and prevent closure of
the load interrupter switch.
2.9.7 {Option} Voltage Presence Indication System shall be provided on the mechanism compartment and
shall be an easily removable module containing three neon indicators powered from voltage dividers.
2.9.8 {Option:} Surge Arresters (metal-oxide type): [Distribution] [Intermediate] class, rated [3, 6, 9] kV,
one per phase.
2.9.9 {Option} Main busbar live line indicators shall be provided as required and shall be mounted in the
low voltage compartment.]
2.9.10 {Option} Power factor correction capacitor shall be provided. The capacitor shall be a 3 phase unit
connected to the load side of the connector. The rating of the capacitor shall be [100], [150], [200], [250],
[300], [350], [400] kVAR.
2.10 Mechanically Latched Contractor
2.10.1 Mechanically-latched contactors shall be provided when specified for transformer disconnect
circuits, and other uses when it is required to have contactor remain closed, regardless of control voltage
condition.
2.10.2 Mechanically-latched contactor shall be closed electrically from a local or remote ”close“ pushbutton, and an electrically operated solenoid shall be supplied to open the contactor from a remote location
2.10.3 A mechanical opening device shall be provided to mechanically open the contactor.
2.11 Incoming LIne sections to MCC
2.11.1 Each incoming line section shall be [500mm wide {bottom entry only}] [750mm wide {top or
bottom entry and shall be connected to an adjacent controller.
2.11.2 Terminations shall accommodate up to quantity and size or ratings of cables as indicated on the
drawings.
2.11.3 Incoming Line section shall have a rating of [630] [1250] [2500] [3150] amperes.
2.11.4 {Option} Provide a Voltage Presence Indication System connected by a capacitive circuit to the
main bus. The system lights will indicate voltage when the equipment is energized.
2.11.5 {Option:} Surge Arresters (metal-oxide type): [Distribution] [Intermediate] class, rated [3, 6, 9] kV,
one per phase.
2.11.6 {Option} The section shall contain a top mounted pull box [432 mm high] to ease in cable pulling
and for additional shielded cable bending space.
2.11.7 SPECIFIED COMPONENTS
2.11.7.1 Standard push buttons shall be Harmony type 9001 ZB4, 600 V rated.
2.11.7.2 Standard pilot lights shall be Harmony type 9001 XB4, 600 V rated LED long life.
2.11.7.3 Standard control relays shall be type CA2DN.
2.12 Fabrication
2.12.1 Construction: Each cubicle shall be a separately constructed cubicle assembled to form a rigid
freestanding unit. Adjacent cubicles shall be securely bolted together to form an integrated rigid structure.
Each individual unit shall be braced to prevent distortion.
2.12.2 All busbar joints shall use Belleville washers. Torqued bolts that are used for busbar joints or for
insulators and direct support of any current carrying parts shall be marked with a bead of highly visible
bright orange "torque seal", that will readily show when a bolt has loosened.
2.12.3 Height: 2300mm, maximum including auxiliary support members on top and bottom.
2.12.4 Main busbar shall be copper, [non-insulated] [insulated] rated [630] [1250] [2500] [3150] amps, and
shall be supported directly by the disconnector.
2.12.5 [For single cubicles, include an earth pad with lug.] [For multiple cubicle line-ups, include
continuous earth busbar through the motor controller assembly, securely connected to the steel frame of
each cubicle.]
2.12.6 Main busbar and earth busbar connections shall be designed for easy future extensions. Cut-out
areas with removable bolted on covers shall allow for future extension of the main busbar. A knockout
shall be removable for the extension of the earth busbar.
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Specification for Tender
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2.13 Factory finishing
2.13.1 All non-painted steel parts shall be zinc plated.
2.13.2 All painted steel parts shall be cleaned and a zinc-phosphate pre-treatment applied prior to paint
application.
2.13.3 Paint Colour shall be RAL9002 White Frosted TGIC polyester powder, applied electrostatically
through air. Following paint application, parts shall be baked to produce a hard durable finish. The average
thickness of the paint film shall be 2.0 mils. Paint film shall be uniform in colour and free from blisters,
sags, flaking and peeling.
2.13.4 Adequacy of paint finish to inhibit the build-up of rust on ferrous metal materials shall be tested and
evaluated per paragraphs 5.2.8.1-7 of ANSI C37.20.3-1987. Salt spray withstand tests in accordance with
paragraph 5.2.8.4 shall be performed on a periodic basis to provide conformance to this corrosion
resistance standard of at least 600 hours minimum.
2.14 Related Sections
2.14.1 [Section 16290-3]-Power Monitoring And Control Systems
2.14.2 [Section 16290-6.1]-Medium Voltage Protective Relay
2.14.3 [Section 16290-7]-Web Enabled Power Distribution Equipment
3. Execution
***********************************************************************************
The following paragraphs in this section represent work that is to be performed by the installing contractor.
If this specification is written for the motor controller manufacturer only, eliminate these sections.
***********************************************************************************
3.1 Examination Specified Components
3.1.1 Visually inspect motor controller for evidence of damage and verify that surfaces are ready to receive
work.
3.1.2 Visually inspect to confirm that all items and accessories are in accordance with specifications and
drawings.
3.1.3 Verify field measurements are as [shown on Drawings] [shown on shop drawings] [instructed by
manufacturer.]
3.1.4 Verify that required utilities (e.g., control voltage for heater circuits on outdoor motor controller) are
available, in proper location, and ready for use.
3.1.5 Beginning of installation means installer accepts existing surface conditions.
3.2 Installation
3.2.1 Install in accordance with manufacturer's instructions and in accordance with recognized industry
practices.
3.2.2 [Connect the primary surge arresters if not connected. If required, use jumper cables, as provided by
the motor controller manufacturer.]
3.2.3 Bending of high-voltage cables should be avoided or minimized. All necessary bends should meet at
least the minimum radii specified by the cable manufacturer.
3.3 Field Quality Control
3.3.1 Field inspection and testing will be performed by [the installing contractor] [a separate contractor
furnished by the owner].
3.3.2 Visually inspect for physical damage.
3.3.3 Perform mechanical operator tests in accordance with manufacturer's instructions.
3.3.4 Check torque of all bolted connections, including cable terminations, either by observing the bead of
indicating compound to confirm that it is still intact, or with a torque wrench to confirm the joint is
tightened to the manufacturer's specifications.
3.3.5 Touch-up paint all chips and scratches with manufacturer-supplied paint and leave remaining paint
with Owner.
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Specification for Tender
840984200
3.3.6 Verify key interlock operation if applicable.
3.3.7 Perform insulation resistance test on each phase to earth and each phase to each other phase. Record
results.
3.3.8 Perform low frequency withstand tests according to applicable IEC standards.
3.3.9 Perform contact resistance test across each disconnector blade; report any contact resistance in excess
of 50 micro-ohms.
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