Eaton BladeUPS none, Инструкция по установке и эксплуатации

Страница: 11 / 66

Introduction
Eaton BladeUPS 12 kVA Maintenance Bypass Cabinet Installation and Operation Manual P-164000130—Rev 1 www.eaton.com/powerquality 1-3
1.2 Maintenance Bypass Cabinet Standard Components
The standard MBC is configured with the following primary components:
l
Three Cutler-Hammer ® breakers rated for 225A (MBB, RIB, and UOB)
l
One Cutler-Hammer breaker rated for 125A (SIB)
l
Up to two 225A, 42-pole power distribution panels
l
One 480V/208V transformer
The descriptions in this section provide a brief overview of the MBC standard components.
Utility Load
SIB
RIB
MBB
UOB
BladeUPS Parallel Rack
Figure 1-2. BladeUPS and MBC block diagram
1.2.1 Maintenance Bypass Breaker and UPS Output Breaker
The MBB, in combination with the UOB and RIB, can be used to completely isolate the UPS during service.
The UPS can be serviced or replaced without interrupting power to critical systems. The MBB, RIB, and UOB
are located on the front panel of the MBC.
1.2.2 Rectifier Input Breaker
The RIB is available to provide a single point of rectifier input power control to the UPS, and to easily remove
input power from the UPS for servicing. The RIB is located on the front panel of the MBC.
1.2.3 System Input Breaker
The SIB is available to provide a single point of 480V input power control to the MBC, and to easily remove
power from the MBC transformer. To completely remove power from the MBC, the customer’s feed breaker
to the MBC must be turned off.The SIB is located on the rear of the MBC.
1.2.4 Output Distribution Panel or Panels
An output distribution panel distributes the output power from the UPS to the critical load. The MBC can
contain up to two 42-circuit breaker panel boards (accepts Cutler-Hammer Bolt-on Type BAB or QBHW circuit
breakers), that can be assigned with flexibility to meet facility needs. Distribution panels are located on the
front of the MBC. (For configuration option diagrams, see Appendix A, “Installation Reference Appendices”,
section A.4.)
1.2.5 Input Isolation Transformer
A 75 kVA 480-208/120V Delta/Wye isolation transformer converts 480 Vac utility input to 208V UPS input for
applications that require 208V, and for use with the distribution panels supplying 208/120 Vac to the critical
load.