Lucent Technologies Lineage
®
2000 400A, 60Hz Ferroresonant Rectifier J85503C-3
2 - 6 Product Description
Issue 10 July 2000
Alarms
The J85503C-3, 400 ampere, 60-Hertz rectifier can discern the
following alarms as well as provide diagnostic information for certain
alarms if you use a Galaxy or an MCS controller. When any other
controller is used, most of these alarms are available from the interface
board of the rectifier.
Load Share Fail
(LSF)
The load share circuitry is fused in each rectifier to prevent a failure in
one rectifier from cascading into other rectifiers. If this fuse operates,
the load share failure LED lights, and the LSF alarm issues. The rectifier
continues to provide power with its load share feature automatically
disabled.
Fuse Alarms (FA)
The low-power control circuits, regulation leads, and dc capacitors are
fused and alarmed. When any fuse alarm circuit operates, except for the
LSF fuse, the rectifier shuts down and the fuse alarm (FA) and rectifier
fail alarm (RFA) LEDs light. Tripping the output circuit breaker also
generates an FA. Opening the output fuse also generates an FA through
the output fuse alarm switch.
Rectifier Failure
Alarm (RFA)
When a rectifier fails, an RFA issues to the controller and the interface
board and lights the front panel RFA LED. The rectifier transmits a
signal to a Lucent Technologies controller, if present, indicating which
one of the following has occurred:
•
Fuse(s) inside the rectifier has operated
•
Selective high voltage shutdown has operated
•
Internal selective high voltage shutdown has operated
•
Backup high voltage shutdown has operated
•
Output circuit breaker has tripped
•
Unbalance circuit has operated
Auxiliary RFA
Alarm
An additional RFA alarm is provided on the rectifier fuse board to
simplify the interface with adjunct monitoring devices.