Lucent Technologies Lineage
®
2000 50A -48V 364A-3 SR Series Rectifier
2 - 8 Product Description Issue 6 January 1997
Metering: A 3-1/2 digit, back lit, LCD meter indicates the
output current of the rectifier with an accuracy of +0.9% of full
scale +1 count.
Active Inrush Current Limiting: Upon initial application of ac
source voltage, an active circuit limits the peak inrush current.
This prevents possible tripping of input breakers or overloading
of engine alternators during ac source voltage transfers.
Initial Charge Mode: The rectifiers are capable of providing 60
volts (at somewhat less than rated current) to charge batteries
initially during plant installations.
Rectifier Failure Alarm (RFA): An RFA alarm provides both
a local visual indication of failure and a signal to the plant
controller. An RFA is generated by the following:
1. high voltage shutdown
2. thermal alarm
3. rectifier fuse alarm or circuit breaker overcurrent
operation
AC Fail Alarm: An ac input voltage of less than approximately
170 vrms causes an alarm to be issued to the controller. An ACF
alarm is also transmitted to the controller if the ac input fuses
located inside the rectifier have operated. Fuses should not be
replaced in the field.
Transfer (TR): The rectifier may be placed in the standby mode
by an externally generated signal. The rectifier will remain in the
standby mode until removal of that signal.
Thermal Alarm (TA): The SR series rectifiers are fan cooled to
increase their reliability. High temperatures caused by fan
failure or other conditions cause the rectifier to shut down and a
thermal alarm to be issued. See Section 7, Maintenance, for
details on fan replacement.
DC Output Breaker: A circuit breaker is provided to protect
the rectifier from malfunction and overcurrent. It may also be
used to disconnect the rectifier from the battery.
Remote Sense: The rectifier can regulate remotely and can
compensate for a voltage drop of up to 2 volts between the
rectifier's output terminals and the regulation point.
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