Emerson 610 installation manual Wiring Considerations

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Wiring Considerations

7.0WIRING CONSIDERATIONS

! WARNING

All power connections must be completed by a licensed electrician experienced in wiring this type of equipment. Wiring must be installed in accordance with all applicable national and local electrical codes. Improper wiring may cause damage to the equipment or injury to personnel.

Verify that all incoming high and low voltage power circuits are de-energized and locked out before installing cables or making any electrical connections.

Refer to Appendix A and drawings in 10.0 - Installation Drawings. Determine AC currents for your system (kVA, voltage and options). Also refer to the equipment nameplate for the model number, rating and voltage. For wire termination data, refer to Tables 2 through 4. Consult your facility’s breaker coordination study to ensure proper handling of fault currents.

NOTE

The instantaneous trip setting of the bypass feeder breaker should be high enough to accommodate short-duration overloads. The bypass static switch inside the SCC can draw up to 10 times the system’s rated current for up to three cycles in the event of a downstream fault.

NOTE

Use 75°C copper wire. Select wire size based on the ampacities in Table 5 of this manual, a reprint of Table 310-16 and associated notes of the National Electrical Code (NFPA 70).

! CAUTION

The weight of power cables must be adequately supported to avoid stress on busbars and lugs. In addition to weight support, the following restraining method is recommended to control cable movement during external fault conditions:

•Wrap line cables together at 6 and 12 in. (152 and 305mm) from the terminals with five wraps of 3/8 in. (9.5mm) nylon rope or equivalent (tensile strength of 2000 lbs.; 907kg).

•Support the remainder of the cable with five wraps every 6 in. (152mm) or one wrap every 1 in. (25mm).

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Contents Liebert Series 610 UPS Contacting Liebert for Support Battery Cabinet PrecautionsTable of Contents Figures Iii Tables Important Safety Instructions Page Installation Considerations Multi-Module 500 to 750kVA UPS System Control Cabinets Types of System Control CabinetsUnloading and Handling External Inspections Internal Inspections and Shipping Material RemovalInspections Equipment Location Battery Installation Battery Safety PrecautionsAvertissement Battery Safety Precautions in French Per CSA RequirementsBattery Cabinets Open-Rack Batteries Configuring Your Neutral and Ground Connections Preferred grounding configuration, wye-connected service Preferred Grounding Configuration, Wye-Connected ServiceAlternate grounding configuration, wye-connected service Alternate Grounding Configuration, Wye-Connected ServicePreferred grounding configuration with isolated bypass Preferred Grounding Configuration With Isolated BypassAlternate grounding configuration, non-isolated Alternate Grounding Configuration, Non-IsolatedConfiguring Your Neutral and Ground Connections Preferred grounding configuration, impedance-grounded wye Preferred grounding configuration, battery systems Preferred Grounding Configuration, Battery SystemsWiring Considerations Power Wiring Scct Abbreviations for circuit breakers Control WiringBattery Wiring Specific Connections Wiring ConnectionsWiring Connections Power wiring terminals, factory supplied Wiring InspectionField-supplied lugs 16, National Electrical Code Reprint Installation Drawings 97-797600-176 Rev 88-797658-84 Rev 88-797658-94 Rev 88-797657-26 Rev 88-797657-95 Rev Outline drawing, 500kVA Multi-Module UPS, 12-pulse rectifier 88-797657-92 Rev 88-797668-84 Rev 88-797668-90 Rev 88-797665-29 Rev 88-797665-90 Rev 88-797656-66 Rev 88-797656-86 Rev 88-797668-66 Rev 88-797668-86 Rev 88-797664-68 Rev 88-797664-88 Rev 88-797677-65 Rev Base mounting patterns, 500kVA module, 6-pulse rectifier Base mounting patterns, 500kVA module, 12-pulse rectifier 88-797613-28 Rev Base mounting patterns, 625-750kVA module, 6-pulse rectifier 88-797613-29 Rev 88-797613-19 Rev 88-797613-27 Rev Shipping split detail, 500kVA, 12-pulse rectifier 88-797612-08 Rev Shipping split detail, 625-750kVA, 6-pulse rectifier 88-797612-09 Rev Shipping split detail, 625-750kVA, 12-pulse rectifier 88-797612-07 Rev Battery power pack system Battery power pack, Size a 88-797607-63 Rev Outline drawing, System Control Cabinet SCCT, 200-1200A 88-797613-71 Rev Outline drawing, System Control Cabinet SCCT, 1600-2000A 88-797613-78 Rev Outline drawing, System Control Cabinet SCCT, 2500-3000A 88-797613-73 Rev Outline drawing, System Control Cabinet SCCT, 4000A Base mounting patterns, System Control Cabinet SCCT, 4000A 96-797619-58A Rev 96-797619-66A Rev Control connection location diagram, Scct 96-797619-51A Rev 96-797619-60 Rev 96-797619-19A Rev 96-797619-20 Rev 96-797619-21 Rev 96-797619-130 Rev 96-797619-28 Rev 96-797619-128 Rev 96-797619-62 Rev 96-797619-90 Rev 96-797619-91 Rev 96-797619-52A Rev 96-797619-53A Rev 96-797619-54A Rev 96-797619-55A Rev 96-797619-56A Rev 96-797619-57A Rev 88-797616-09 Rev 88-797616-13 Rev 88-797616-07 Rev Outline drawing, remote status panel, surface mount Installation Drawings Data, Series 610, 500-750kVA, Multi-Module Systems Site planning data-600V input Site planning data-480V input System Control Cabinets Page Page Page Environmental Systems 800-543-2778 Outside the United States