Emerson 610 installation manual Power Wiring

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Wiring Considerations

7.1Power Wiring

1.Power wiring—rectifier input, bypass input, UPS output and battery cables—must be run in individual, separate conduits or cable trays. Refer to the Outline and Terminal Details drawings (Figures 14 through 30, 47, 49, 51, 53 and 75 through 78) for locations of the various power connections within the UPS and ancillary equipment. In particular, note the location of the rectifier input power connections.

! CAUTION

Power and control wiring must be separated!

2.Observe local, state and national electrical codes. Verify utility power and its overcurrent protection rating will accommodate the UPS input rating, including battery recharging.

3.A safety ground wire must be run from the building ground to a ground point in the UPS Module Cabinets, ancillary equipment and the Power-Tie Cabinet (if applicable). See 6.0 - Configuring Your Neutral and Ground Connections. The grounding conductor shall comply with the following conditions of installation:

a.An insulated grounding conductor must be sized in accordance with the NEC and local codes. It must be green (with or without one or more yellow stripes) and be installed as part of the branch circuit that supplies the unit or system.

b.The grounding conductor described above is to be grounded to earth at the service equipment or, if supplied by a separately derived system, at the supply transformer or motor-generator set in accordance with the instructions in 6.0 - Configuring Your Neutral and Ground Connections.

c.The attachment-plug receptacles in the vicinity of the unit or system are all to be of a grounding type, and the grounding conductors serving these receptacles are to be connected to earth ground at the service equipment.

4.Observe clockwise phase rotation of all power wiring. Phase A leads Phase B leads Phase C. A qualified electrician should check the phase rotation.

5.AC power cables must be rated to meet NEC requirements for voltage drop at the maximum rated system current. DC power cables from the UPS to the battery terminals and return must be sized for less than 2 volts total loop drop at the maximum rated system current.

6.If site equipment includes a backup generator and automatic transfer switch(es), consult the manufacturers of those devices for information on sizing and interfacing to the UPS system.

7.Removable access plates are available for power wiring. Refer to the Outline Drawings for your particular model (Figures 14, 16, 18, 20, 22, 24, 26, 28, 47, 49, 51, 53 and 75 through 78).

! CAUTION

After cutting holes in the access plates, be certain that no foreign matter (metal shavings, sawdust, insulation or wire fragments, etc.) remains inside the UPS. Likewise be certain to block any “extra” holes in the plates through which foreign matter could later enter the UPS.

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Contents Liebert Series 610 UPS Battery Cabinet Precautions Contacting Liebert for SupportTable of Contents Figures Iii Tables Important Safety Instructions Page Installation Considerations Multi-Module 500 to 750kVA UPS Types of System Control Cabinets System Control CabinetsUnloading and Handling Internal Inspections and Shipping Material Removal External InspectionsInspections Equipment Location Battery Safety Precautions Battery InstallationBattery Safety Precautions in French Per CSA Requirements AvertissementBattery 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 Control Wiring Abbreviations for circuit breakersBattery Wiring Wiring Connections Specific ConnectionsWiring Connections Wiring Inspection Power wiring terminals, factory suppliedField-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
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