Lucent Technologies Lineage
®
2000 50A -48V 364A-3 SR Series Rectifier
7 - 2 Maintenance
Issue 6 January 1997
performed when the plant is in float or equalize mode and with
the rectifiers in or out of load share mode.
No Load Testing
(NL)
This test is typically done on rectifiers which have load share
disabled. This test can be performed on a rectifier which is
producing any output current. This test should not be
performed on a plant consisting of only one rectifier.
1. Press and hold the RECT TEST switch in the NL position.
2. Observe that the reading on the OUTPUT CURRENT
display of the rectifier decreases in value and the readings
on the other rectifiers increase.
3. If the rectifier's current does not decrease when the RECT
TEST switch is in the NL position, turn the applicable
potentiometer (FL or EQ) fully CCW. If the rectifier is still
producing a disproportionate amount of current, press and
hold the RECT TEST switch in the NL position. If the
rectifier's current does not decrease, replace the rectifier
according to procedures outlined in Section 5, Installation.
If the rectifier's current does decrease, readjust its output
according to the procedures outlined in Section 5.
Full Load
Testing (FL)
This test can be performed on a rectifier which is producing no
output current although the other rectifiers on-line are producing
full output current. This test should not be performed on plants
consisting of only one rectifier.
1. Press and hold the RECT TEST switch in the FL position.
2. Observe that the reading on the OUTPUT CURRENT
display of the rectifier increases in value and the readings
on the other rectifiers decrease.
Note
It is normal for rectifiers not in load share to share load very
unevenly; it is also possible that the rectifiers are misadjusted.
Rectifiers not operating with load share disabled can be
adjusted with the circuit breaker closed. Rectifiers may also
be adjusted such that some carry the majority of the load with
remaining units functioning as “hot” spares.
