Lucent Technologies Lineage 2000 SR Series - Figure 7-1: Troubleshooting Flowchart (Continued)

Lucent Technologies Lineage
®
2000 50A -48V 364A-3 SR Series Rectifier
7 - 8 Maintenance Issue 6 January 1997
Figure 7-1: Troubleshooting Flowchart (continued)
55.CHECK RESISTANCE
TOGROUNDAND
BETWEEN PHASES ON
LOAD SIDE OFAC
CIRCUITPROTECTOR
56.IS THEREA
SHORTCIRCUIT?
(R<1 OHM)
57.UNPLUG RECTIFIER
FROM SHELF
58.RECHECK RESISTANCE
INAC DISTRIBUTION
59.IS THERESTILL
A SHORTCIRCUIT?
60.PROBABLECAUSE:
SHORTEDWIRING.
CHECK AC WIRINGFOR
CUTS/ABRASIONS.
CHECK AC CONNECTIONS
ONRECTIFIER SHELF
61.PROBABLECAUSE:
BLOWN RECTIFIER FUSE.
REPLACE RECTIFIER. IF
PROBLEM PERSISTS,
BREAKER IS PROBABLY
DEFECTIVE.
62.PROBABLECAUSE:
INTERNAL SHORT
CIRCUITINRECTIFIER.
REPLACE
GOTOSTEP 1
NO
NO
NO
YES