GE 300, 225 manual Wiring Connection, Wire Size Range

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g

GE

3.8WIRING CONNECTION

WARNING!

UPS installation and connection must be performed by qualified service personnel only.

3.8.1Power connections

Input/output and DC connections are provided with compression lugs.

Please refer to chart for torque specifications.

Carefully read the following recommendations before proceeding:

•Ensure that the AC and DC external isolators are OFF and locked to prevent their inadvertent operation.

•Do not close any external isolators prior the commissioning of the equipment.

•The preferred power cable entry location for installation purposes is from the right side of the UPS, either top or bottom.

To facilitate the terminations remove the right side panel in order to access the input/output terminal lugs.

In case of cable entry from the top of the cabinet, remove the cover plate fitted on the roof and provide for a suitable isolated protection cover.

In case of cable entry from the bottom remove cover plate and perform the same procedure.

•If the UPS is installed in such a way that the accessibility to the right side panel is reduced, field wiring connections can be made from the front side by removing the front right side panel protection cover/panel ( D ) as indicated in Fig. 3.8.1-1 be advised that installation performed from the front position will give the installer reduced visibility to the terminal lugs.

•The input/output cables must be connected in clockwise phase rotation for both Bypass and Rectifier Input Terminals if separate, taking care to avoid risk of short circuit between different poles.

•The grounding and neutral connection of the electrical system must be in accordance with local regulations.

•In case of additional cabinets containing batteries, input/ output transformers, etc, their ground terminals must be connected to the UPS main ground terminal.

•Once the power cables have been connected, re-install the internal safety shields and close the cabinets by re-installing all external panels.

Torque Specifications

Mechanical Compression Lugs

Input / Output / Battery and GND

WIRE SIZE RANGE

 

 

 

WIRE SIZE RANGE

 

 

AWG / kcmil

Lb - in

Nm

 

AWG / kcmil

Lb - in

Nm

 

 

 

 

 

 

 

 

6

– 4

110

12.4

 

3/0 – 200

250

28.2

 

 

 

 

 

 

 

 

3

– 1

150

19.6

 

250 – 350

325

36.7

 

 

 

 

 

 

 

 

1/0

– 2/0

180

20.3

 

500 – 750

375

42.4

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Installation Guide SG Series 225 & 300 kVA

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Contents SG Series Systems Copyright 2003 by GE Industrial SystemsStart UP and Commissioning Dear CustomerPreface Table of contents Battery InstallationGeneral StorageSafety instructions when working with battery Safety warnings Safety symbols and warningsRisk of electric shock PE Earth GND Ground Protective Grounding TerminalLayout SG Series 225 and 300 KVA LayoutWeight SG Series 225 and 300 kVA Dimensions and weightTransport Forklift Crane Transport UPS only in upright positionStorage of Battery DeliveryStorage of the UPS Place of Installation Positioning of the UPS SG SeriesCheck -26A of the NEC code for specific requirements Fixing of the UPS cabinet on the floor Openings for input and output cable connections1-5 RPA system disposition Battery locationCFM Ventilation and CoolingTake care not to damage the UPS when moving by forklift UnpackingPacking material recycling Electrical Wiring Separate input Rectifier & Bypass recommendedCommon input Rectifier & Bypass Neutral current could be greater than the phase currents Input/output over current protection and wire sizingPhase, 4 wire plus Ground Phase, 3 wire plus GroundWire positive and negative plus Ground See .7.1-1Copper Wire Size Range Wiring Connection1-1 Access to the input / output connections Power connection with common input utility Common Input Rectifier / BypassOutput Load Cable section for this connection shall be not less then AWG L1-1 Rectifier Phase a L1-2 Power connection separate input utilityL2-1 Rectifier Phase B L2-2 L3-1 Rectifier Phase C L3-2BR1 Battery Battery connectionPositive pole of the Battery Do not insert the Battery Fuses before the commissioningManual Bypass, serious damage to the Load could result Setup for SG Series when functioning as frequency converter1 RPA Parallel System Power Wiring of Parallel UnitsParallel Control BUS Connection UPSIntermediate units Terminal unitsControl BUS Cable Location Access to the control bus connectionControl bus cables connection Interface IM0048 going to P1311-3 Control Bus cable routing and connection Control bus cables routingCustomer Interface Customer Interface18, 19 Or J2 20, 21 NO, C, NC Acoustic Alarm 15, 16 Or J2 17, 18 NO, C, NC General AlarmOutput potential free contacts Or J2 / 1, 2 NO, C, NC Utility FailureGND JP3 EPO Emergency Power Off Input contact38/38
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