BR1 | GE 225, 300 instruction

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GE

This UPS is only designed to operate in a wye-configured electrical system with a solidly grounded neutral.

In case of 3-wire utility input the following solutions are possible:

1- Connection of a “3-wire kit” between Utility Input and Neutral of the output transformer.

Attention: With this configuration, load can only be connected phase- phase. Absolutely no load connection permitted to the Neutral of the output transformer.

In a RPA configuration with 3-wire kit, it’s most important to connect the Neutrals of the UPS outputs together (see Fig .3.8.3-2).

Cable section for this connection shall be not less then AWG 1.

Fig. 3.8.3-2 3-wire kit for RPA Parallel System

2- Bypass transformer.

In this case the Neutral of wye secondary winding must be connected to the Neutral of the output transformer.

Contact your Service Centre, which will help you to find valuable solutions.

Notices for installation

SGS_225-300_UPS BR1-2-3_01

Q2

Q1	Q2
	Q2
	BR1

BR2

BR3

Fig. 3.8.3-3 AC bus bars BR1, BR2 and BR3

For separate Bypass and Rectifier input configuration AC bus bars BR1, BR2 and BR3 must be removed.

OPM_SGS_ISG_M22_M30_0US_V011.doc

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Installation Guide SG Series 225 & 300 kVA

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GE 225, 300 manual BR1

Contents

SG Series Copyright 2003 by GE Industrial Systems Systems Dear Customer Start UP and Commissioning Preface Table of contents General InstallationBattery Storage Safety instructions when working with battery Risk of electric shock PE Earth GND Ground Safety symbols and warningsSafety warnings Protective Grounding Terminal Layout Layout SG Series 225 and 300 KVA Transport Forklift Crane Dimensions and weightWeight SG Series 225 and 300 kVA Transport UPS only in upright position Storage of the UPS Storage of BatteryDelivery Check -26A of the NEC code for specific requirements Place of InstallationPositioning of the UPS SG Series Openings for input and output cable connections Fixing of the UPS cabinet on the floor Battery location 1-5 RPA system disposition Ventilation and Cooling CFM Packing material recycling Take care not to damage the UPS when moving by forkliftUnpacking Common input Rectifier & Bypass Electrical WiringSeparate input Rectifier & Bypass recommended Input/output over current protection and wire sizing Neutral current could be greater than the phase currents Wire positive and negative plus Ground Phase, 3 wire plus GroundPhase, 4 wire plus Ground See .7.1-1 Copper Wiring Connection Wire Size Range 1-1 Access to the input / output connections Output Load Power connection with common input utilityCommon Input Rectifier / Bypass Cable section for this connection shall be not less then AWG L2-1 Rectifier Phase B L2-2 Power connection separate input utilityL1-1 Rectifier Phase a L1-2 L3-1 Rectifier Phase C L3-2 BR1 Positive pole of the Battery Battery connectionBattery Do not insert the Battery Fuses before the commissioning Setup for SG Series when functioning as frequency converter Manual Bypass, serious damage to the Load could result Power Wiring of Parallel Units 1 RPA Parallel System UPS Parallel Control BUS Connection Terminal units Intermediate units Control bus cables connection Access to the control bus connectionControl BUS Cable Location Interface IM0048 going to P13 Control bus cables routing 11-3 Control Bus cable routing and connection Customer Interface Customer Interface Output potential free contacts 15, 16 Or J2 17, 18 NO, C, NC General Alarm18, 19 Or J2 20, 21 NO, C, NC Acoustic Alarm Or J2 / 1, 2 NO, C, NC Utility Failure GND EPO Emergency Power Off Input contact JP3 38/38