Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Testing 6 - 21
Adjusting
Rectifiers
Individually
The fastest way to adjust a group of rectifiers to float voltage is
to adjust them individually, turning each one Off after
adjustment, and turning them all On after the last adjustment. In
order to use this method, however, the load requirement at the
time of the adjustments must be less than the capacity of the
smallest rectifier.
1. Measure the battery voltage by holding the meter selector
switch in the BATT V position.
2. If the battery voltage is not the pre-determined float
voltage or the desired battery float voltage, perform the
following:
a.
If the voltage is too high, turn the OUTPUT VOLTS
ADJ potentiometer counterclockwise.
b.
If the voltage is too low, turn the OUTPUT VOLTS
ADJ potentiometer clockwise.
c.
Check the battery voltage and repeat Steps a and b
above until the battery voltage is within the required
tolerance of the desired float voltage.
3. Turn the rectifier Off and repeat this procedure for each
rectifier in the group.
4. Turn all rectifiers On after the last rectifier is adjusted.
Adjusting
Rectifiers as a
Group
If the load requirement is always greater than the capacity of
the smallest rectifier, adjust the rectifiers to float voltage using
the following procedure. Rectifiers must be on line with plant
cables connected and REG fuses installed in the plant controller
or a remote bay.
1. Measure the battery voltage by holding the meter selector
switch in the BATT V position.
2. If the battery voltage is not the pre-determined float
voltage or the desired battery float voltage, perform the
following:
a.
If the voltage is too high, turn the OUTPUT VOLTS
ADJ potentiometer counterclockwise on the rectifier
with the highest output current.