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GE
g
SG Series 10, 20, 30 and 40 kVA
OPERATING MANUAL
UNINTERRUPTIBLE POWER SUPPLY
TM
Digital Energy
SG Series
10 – 20 – 30 – 40 kVA
Series 0
2500 Discovery Blvd. Telephone: (972)-290-7400
g
General Electric Company Fax: (972)-290-7500
Rockwall, TX 75032
SG Series UPS Technology for the digital world
SGT5000_030-040_UPS_GE_01
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GE g Model: SG Series 10, 20, 30 and 40 kVA / Series 0 Date of issue: 04/15/2003 File name: OPM_SGS_USM_10K_40K_0US_V010 Revision: 1.0 Author: Raimondo Bizzozero Identification No.: Up-dating Revision Concern Date COPYRIGHT © 2003 by GE All rights reserved. The information contained in this publication is intended solely for the purposes indicated. The present publication and any other documentation supplied with the
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GE g Dear Customer, We thank you for selecting our products and are pleased to count you amongst our very valued customers at GE. We trust that the use of the SG Series Uninterruptible Power Supply system, developed and produced to the highest standards of quality, will give you complete satisfaction. Please carefully read the Installation Guide. It contains all the necessary information about the installation of the UPS. Thank you for choosing GE ! START UP AND
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GE g Preface Congratulations on your choice of a SG Series Uninterruptible Power Supply (UPS). It will help eliminate Load disturbances due to unexpected power problems. This Manual describes the function of the UPS module, the purpose and location of the switches, the meaning of the system events related to the front panel indication, and provides procedures for starting and stopping the equipment. Please refer to the accompanying Installations Guide, which describes how to pre
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GE g Table of contents Page 1 IMPORTANT SAFETY INSTRUCTIONS .................................................................7 2 INTRODUCTION.....................................................................................................10 3 DESCRIPTION........................................................................................................11 3.1 BLOCK DIAGRAM AND MAIN ELEMENTS..................................................................11 3.2 OPERATION MODES
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GE g 7.2 PROCEDURES FOR UPS FUNCTIONING AS FREQUENCY CONVERTER .............49 7.2.1 Start-up of the SG Series as frequency converter ............................................................49 7.2.2 Complete UPS shutdown (No Load supply)..................................................................50 7.2.3 Restore to normal operation after “total off”...................................................................51 7.2.4 Restore to normal operation after EPO (Emergency Power
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GE g 1 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions for models SG Series 50 and 80 kVA that should be followed during installation and maintenance of the UPS and battery. GENERAL - Move the UPS in an upright position in its original package to the final destination room. To lift the cabinets, use a forklift or lifting belts with spreader bars. - Check for sufficient floor and elevator loading capacity. - Check the integrity
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GE g Safety instructions when working with battery EXTERNAL BATTERY MUST BE INSTALLED AND CONNECTED TO THE UPS BY QUALIFIED SERVICE PERSONNEL. INSTALLATION PERSONNEL MUST READ THIS ENTIRE SECTION AND REFER TO THE BATTERY MANUFACTURERS INSTALLATION MANUAL BEFORE HANDLING THE UPS AND BATTERY. UPS INTENDED TO BE USED WITH A REMOTE BATTERY SUPPLY – ALL MODELS: “PLEASE REFER TO THE BATTERY MANUFACTURER’S INSTALLATION MANUAL FOR BATTERY INSTALLATION AND MAINTENANCE INSTRUCTIONS”.
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GE g Safety symbols and warnings Safety warnings The text of this manual contains some warnings to avoid risk to the persons and to avoid damages to the UPS system and the supplied critical loads. The non-observance of the warnings reminding hazardous situations could result in human injury and equipment damages. Please pay attention to the meaning of the following warnings and symbols. Throughout this manual the following symbols are defined: WARNING, if instruction is not
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GE g 2 INTRODUCTION An Uninterruptible Power Supply (UPS) provides the power for critical loads that need a reliable, continuous, disturbance free supply. In case the power provided by the Utility Fails, or exceeds the permitted tolerances, the power to supply the Load is provided by the Battery for the specified time at the rated Load (or longer at a reduced Load) or until the Utility power returns. SG Series is a true double conversion On-line UPS system where the Load is con
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GE g 3 DESCRIPTION 3.1 BLOCK DIAGRAM AND MAIN ELEMENTS Fig. 3.1-1 Block diagram The SG Series system can be divided into the following main elements: Control System SG Series is designed with microprocessor-controlled signal processing circuits. The interface between the operator and the unit is provided by the monitoring system on the front panel. This monitoring system consists of an active mimic diagram, a keyboard and a backlit display. Rectifier The standard Rectifier
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GE g 3.2 OPERATION MODES 3.2.1 Normal operation mode During normal operation, the Rectifier converts input AC power to DC. The DC power provides input power for the Inverter and charging power for the Battery. The Inverter converts the DC power to continuous and regulated AC power, which supplies the critical load. The control panel reports the Battery charge status and the expected backup time with the actual load. Fig. 3.2.1-1 Block diagram normal operation mode 3.2.2 U
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GE g 3.2.3 Utility recovery operation As soon as the AC input power recovers, the Rectifier will start automatically, supplying DC power to the Inverter and recharging the Battery. If the Inverter was previously shut down due to low Battery, the Load will be initially powered by Utility through the Automatic Bypass. When the Battery is recharged enough to ensure a minimum time of operation with the present load, the Inverter will start automatically and the Load Fig. 3.2.3-1 Block
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GE g 3.3 PARALLEL SYSTEM OPERATION 3.3.1 Introduction to the parallel system Two or more equal power units can be paralleled to increase the output power (paralleling for capacity) or to improve the overall reliability of an UPS system (paralleling for redundancy). The outputs of parallel units are connected to a common power bus, and in normal operation the units connected on the parallel bus share the Load equally. The modular concept of SG Series allows parallel operation of up to
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GE g 3.3.2 Features of RPA parallel system The SG Series parallel system is designed to provide a complete Redundant Parallel Architecture, and is free from common equipment. Not only the Inverters are redundant, but also the Bypass functions are designed with redundant modular concept. When one UPS needs maintenance or service, the Load is powered by the other units supplying the Load bus. The redundant communication bus to which all units are connected keeps each unit informed
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GE g 3.4 RECTIFIERS PARALLELED ON THE SAME BATTERY A parallel system with a Common Battery for two or more Rectifiers, requires a particular installation and adequate setting of some parameters, (accessible only through password), and can therefore only be done by a qualified engineer from GE. Usually each Rectifier-Inverter Unit runs with its own Battery. In case of parallel units are running with a Common Battery (max. 4 UPS - see Fig 4.12-1), the sharing circuit between individ
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GE g 3.5 RECYCLING AT THE END OF SERVICE LIFE NOTE! This product has been designed to respect the environment, using materials and components respecting eco-design rules. It does not contain CFCs (Carbon Fluor Clorid) or HCFCs (Halogen Carbon Fluor Clorid). Packing material recycling GE, in compliance with environment protection, uses only environmentally friendly material. UPS packing materials must be recycled in compliance with all applicable regulations.
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GE g 4 LAYOUT 4.1 LAYOUT SG Series 10 AND 20 KVA Fig. 4.1-2 SG Series general view with open doors FIG. 4.1-1 SG SERIES GENERAL VIEW Fig. 4.1-4 Control Panel Fig. 4.1-3 Manual operated switches 1 P4 Customer Interface Board 2 3 XA 4 Q1 UPS output switch P4 Q2 Manual Bypass switch XB SNMP 1 2 SNMP SNMP Card (option) 3 4 XA Terminals for 24VDC Auxiliary Power Supply connection Fig. 4.1-5 Connectivity Rack XB Terminals for EPO (Emergency Power Off) connection OPM
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GE g 4.2 LAYOUT SG Series 30 AND 40 KVA Q1 Q2 ON ON OFF OFF FIG. 4.2-1 SG SERIES GENERAL VIEW Fig. 4.2-2 SG Series general view with open doors Fig. 4.2-4 Control Panel Fig. 4.2-3 Manual operated switches P4 Customer Interface Board 1 2 3 Q1 UPS output switch XA 4 P4 Q2 Manual Bypass switch XB SNMP 1 SNMP SNMP Card (option) 2 3 4 XA Terminals for 24VDC Auxiliary Power Supply connection XB Terminals for EPO (Emergency Power Off) connection Fig. 4.2-5 Connectivi
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GE g 5 CONTROL PANEL 5.1 CONTROL PANEL Fig. 5.1-1 Control Panel 5.2 TABLE OF FUNCTIONS AND INDICATIONS ON CONTROL PANEL inverter on/off Key to switch the Inverter ON. (This key is also used to reset “total off” if pressed simultaneously with total off push button). inverter on/off Key for Inverter shutdown. Press key to transfers the Load to Utility. Keep pressed for 5 seconds to shutdown the Inverter. This key is also used as the EPO (Emergency Power Off) reset.
