Operation

Figure 20 Monitor/Mimic Display example: Load on bypass, all UPS modules off line

BYPASS INPUT A-B B-C C-A 480V 480V 480V 60.0 Hz

UPS INPUT PWR A-B B-C C-A 480V 480V 480V

MOD 1 OFF LINE SUM ALM MOD 2 OFF LINE SUM ALM MOD 3 OFF LINE SUM ALM

© 1989-2003

UPS RATINGS

SCCB 1600

OUTPUT VOLTAGE

A-B B-C C-A

0V 0V 0V

0 Hz

Not OK to Transfer Static Switch Connected

LOAD

627 KVA / 502 KW

A B C 755A 755A 755A

0 OF 3 MODULES

CONNECTED

NON-REDUNDANT

Load on Bypass

Static Sw Unable

Module Sum Alm

SCC Display

 

 

 

© 1989-2003

 

 

 

 

 

 

 

UPS RATINGS

UPS INPUT PWR

 

 

 

 

AP646-84

 

 

 

 

RATED 375 KVA

A-B B-C

C-A

 

 

 

 

 

 

OUTPUT VOLTAGE

480V

480V

 

 

 

 

 

 

 

 

 

 

 

480V

 

 

 

A-B B-C

C-A

0A

0A

0A

 

 

 

 

 

 

0V

0V

0V

 

 

 

 

 

 

MODULE DC BUS

 

 

 

 

0 Hz

 

 

 

 

 

 

 

VOLTS

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AMPS

0

 

 

 

 

 

 

 

LOAD

0 KVA / 0 KW

A B C

0A 0A 0A

Input Fail

Batt CB Open

Module Display

36

Page 42
Image 42
Liebert 1000kVA manual B-C C-A 0V 0V Not OK to Transfer Static Switch Connected