Emerson Series 610 manual Modes of Operation, Circuit breaker abbreviations, Abbreviation

Models: Series 610

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3.3Modes of Operation

Operation

3.3Modes of Operation

This section illustrates the flow of power through circuit breakers, switches and UPS components during various modes of operation. An SCCT with three modules is shown. The same modes of opera- tion apply to all configurations of the Liebert Series 610 UPS multi-module system. Highlighted (thick) lines in the diagrams indicate power flow and power availability.

These illustrations show a three-breaker maintenance bypass because it is commonly used. Your instal- lation may have a two-breaker, three-breaker or four-breaker maintenance bypass or none at all.

These illustrations do not show an alternate power source (generator) and automatic transfer switch (external to the UPS) that might be present at your installation.

Table 12 below lists abbreviations for circuit breakers used in this manual.

Table 12 Circuit breaker abbreviations

Abbreviation

Circuit Breaker

 

 

BFB

Bypass Feeder Breaker

 

 

BIB

Bypass Input Breaker

 

 

CB1

Module Input Breaker

 

 

CB2

Module Output Breaker

 

 

MBB

Maintenance Bypass Breaker

 

 

MBD

Module Battery Disconnect

 

 

MIB

Maintenance Isolation Breaker

 

 

RIB

Rectifier Input Breaker

 

 

SBB

System Bypass Breaker

 

 

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Page 79
Image 79
Emerson Series 610 manual Modes of Operation, Circuit breaker abbreviations, Abbreviation, Circuit Breaker