Abbreviations for Circuit Breakers
Bypass Feeder Breaker
Bypass Input Breaker
Module Input Breaker
Module Output Breaker
Maintenance Bypass Breaker
Module Battery Disconnect
Maintenance Bypass Feeder Breaker
Maintenance Isolation Breaker
Rectifier Input Breaker
System Bypass Breaker
Static Bypass Switch
NOTE
Make sure all required wiring between each UPS module and the optional cabinet(s) is completed. Observe phase rotation.
See Section 7 of this Manual for an explanation of proper grounding techniques.
CAUTION
All shielded cables, non-shielded cables, non-shielded control wires, non-shielded battery breaker control wires, and non- shielded remote control wires must be housed in individual, separate, steel conduits. Placing multiple cables in the same conduit with other control or power wiring may cause system failure.
CAUTION
IMPROPER WIRING MAY CAUSE DAMAGE TO THE UPS OR INJURY TO PERSONNEL.
ALL POWER CONNECTIONS MUST BE COMPLETED BY A LICENSED ELECTRICIAN EXPERIENCED IN WIRING UPS EQUIPMENT, AND IN ACCORDANCE WITH ALL APPLICABLE NATIONAL AND LOCAL ELECTRICAL CODES.
VERIFY THAT ALL INCOMING HIGH AND LOW VOLTAGE POWER CIRCUITS ARE DE-ENERGIZED AND LOCKED OUT BEFORE INSTALLING CABLES OR MAKING ELECTRICAL CONNECTIONS.
9.0 WIRING CONNECTIONS
DANGER
Refer!!to the drawings in this manual and any other drawings provided by Liebert for this installa- tion. Make all of the following connections:
1. AC power cables from input power source circuit breaker (RIB) to UPS Module Input. Observe phase rotation.
2. AC power cables from bypass power source circuit breaker (BIB) to UPS system bypass input at System Control Cabinet (SCC). Observe phase rotation.
3. !AC power cables from UPS Module Outputs to SCC or to switchgear for critical load bus. Observe phase rotation.
4. Each UPS Module Output Neutral to SCC or to switchgear for critical load bus. See Section 7.
BFB
BIB
CB1
CB2
MBB
MBD
MBFB
MIB
RIB
SBB
SBS
Wiring Connections | 25 |
