Emerson SERIES 600T manual Open-Rack Batteries, Configuring Your Neutral and Ground Connections

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6.3 Open-Rack Batteries

When batteries other than Liebert Battery Cabinets are used, a remote battery disconnect switch with overcurrent protection is required per the National Electrical Code. Refer to Figures 53 and 54. Contact your Liebert sales representative.

1.Install battery racks/cabinets and batteries per manufacturer's installation and maintenance instructions.

2.Verify battery area has adequate ventilation and battery operating temperature complies with manufacturer's specification.

3.Ensure that battery racks are properly grounded according to code requirements in your area.

If you have any questions concerning batteries, battery racks, or accessories, contact Liebert Global Services at 1-800-543-2378.

CAUTION

Cables between batteries and modules should be run in matched pairs, positive- with-negative. Grouping like-polarity cables together (i.e. positive-with-positive and negative-with-negative) can cause stress or damage to the cables, conduit or buswork.

7.CONFIGURING YOUR NEUTRAL AND GROUND CONNECTIONS

Improper grounding is the largest single cause of UPS installation and start-up problems. This is not an easy subject, since grounding techniques vary significantly from site to site, depending on several factors. The questions you should ask are:

•What is the configuration of the input power source? Most of the recommended schemes for UPS grounding require grounded-wye ser- vice. The UPS system requires a bypass neu- tral for sensing and monitoring the quality of the bypass input. If the building service is ungrounded delta or corner-grounded delta, contact your Liebert representative to ensure your system includes the Artificial Neutral or Isolated Neutral kit.

•Does the system have a bypass isolation transformer? Systems with 480 VAC (or 600 VAC) input and 208 VAC output require a bypass isolation transformer. In some cases, it may be necessary to treat that transformer as a “separately derived source” with its own grounding electrode. See page 10 for details.

•What are the UPS input and output voltages? Systems with 480 VAC input and output have significantly different needs than systems with 480/208 VAC or 208/208 VAC.

•What is the connected load? Does the critical load consist of one or more Power Distribu- tion Units (PDUs)? Do the PDUs have isola- tion transformers?

The following sections discuss recommended grounding procedures for various system configurations.

NOTE

Some UPS modules are equipped with input isolation transformers. However, these transformers have no effect upon any system grounding considerations. These modules will be grounded exactly as shown in the following examples.

Liebert Series 600T UPS, 65-225 kVA, Single Module

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Contents   DIS Product Installation Manual Table of Contents Figures Product DIS Product Installation Installation Considerations Internal Inspections External InspectionsEquipment Location Battery Safety PrecautionsBattery Safety Precautions in French PER CSA Requirements Battery Cabinets Open-Rack Batteries Configuring Your Neutral and Ground Connections8Installation Manual DIS Product 10Installation Manual Preferred Grounding Configuration, 208 VAC input and output Grounding Electrode Preferred Grounding Configuration, Power-Tie Systems Preferred Battery Cabinet Grounding Configuration Preferred Grounding Configuration, Battery SystemsPower Wiring Wiring ConsiderationsTypical One-Line Diagrams for SMS with Standard Dual Input Typical One-Line Diagrams of SMS with optional single input Abbreviations for Circuit Breakers Battery Wiring Control WiringSpecific Connections Wiring ConnectionsWiring Inspection Torque Specifications Power Wiring Terminals Factory SuppliedONE-HOLE Lugs Field-Supplied LugsTypes TW= FEPW= TBS, SA Outline Drawing Single and Multi Module 65 & 80 kVA DIS Product DIS Product Bypass Transformer Cabinet, 65 & 80 kVA Bypass Transformer Cabinet, 100-225 kVA Battery Power Pack, 65 & 80 kVA Battery Power Pack, Size A, 100-225 kVA Outline Drawing, 3-Breaker MBC, 65 & 80 kVA DIS Product Outline Drawing, 3-Breaker MBC, 125-350 Amps Outline Drawing, 3-Breaker MBC, 450 to 800 Amps Outline Drawing, 3-Breaker MBC, 600-800 Amps DIS Product DIS Product DIS Product Line-up Detail, 65 & 80 kVA SMS with Battery Cabinets DIS Product DIS Product Line-up Detail, 65 & 80 kVA with 3-Breaker MBC DIS Product Line-up Detail, 100-225 kVA Space Saver with 3-Breaker MBC DIS Product Line-up Detail, 100-225 kVA with 3-Breaker MBC DIS Product Terminal Details, 65 & 80 kVA Single Module Systems Terminal Details, 100 & 125 kVA Space Saver Terminal Details, 150 & 225 kVA Standard SMS Terminal Details, 100 & 125 kVA Standard SMS DIS Product Control Connection Locations, 65 & 80 kVA Control Connection Locations, 100 through 225 kVA Standard Control Wiring, Single Module System Option Wiring, Alarm Status Contacts Option Wiring, Maintenance Bypass Interlock Option Wiring, Remote Status Panel Interface Option Wiring, Remote Terminal IFM RS-232 Communications Option Wiring, SiteScan Interface Option Wiring, Customer Alarm Interface Option Wiring, Battery Temperature Sensor Option Wiring, Snmp Interface Option Wiring, Internal Modem Option Wiring, Maintenance Bypass Cabinet Module Battery Disconnect, 65 through 125 kVA Module Battery Disconnect, 150 & 225 kVA Remote Status Panel, Surface Mount Circuit Breaker Schedule, 65 through 225 kVA Circuit Breaker Schedule, Battery Cabinets, 65 to 500 kVA DIS Product Appendix a Site Planning Data KVA Single Module Systems Series 600T Single Module Systems Volt Input 11,330 600 DIS Product       
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SERIES 600T specifications

The Emerson SERIES 600T, as part of the SERIES 600 line, is a sophisticated device designed to meet the demands of industrial automation and control systems. Renowned for its reliability and versatility, the SERIES 600T excels in various applications across multiple sectors, including oil and gas, chemical processing, and power generation.

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