Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
5 - 12 Installation
Issue 4 May 1998
5. Holding the meter selector switch in the RECT V position,
use a small screwdriver to turn the OUTPUT VOLTS
ADJ potentiometer clockwise until the digital meter reads
approximately battery voltage, typically 26 volts for
24-volt plants, or 52 volts for 48-volt plants.
6. Turn the DC OUTPUT circuit breaker On (up).
7. Adjust the OUTPUT VOLTS ADJ potentiometer to
obtain the desired initial charge voltage within the limits
specified in the preceding caution.
8. After completing the initial charge, turn the rectifier
POWER switch Off and the DC OUTPUT circuit breaker
Off (down).
9. If the rectifier has List WB (external high voltage
shutdown option), leave straps “Q” and “T” on CM1 in the
charge position (pins 1 and 2). If the rectifier is not
equipped with List WB, place “Q” and “T” in the normal
position (pins 2 and 3).
10. Turn the OUTPUT VOLTS ADJ potentiometer fully
counterclockwise.
11. To restore the rectifier to service, follow the procedure
described in “Restoring a Rectifier to Service” in Section
7.
Note
If the rectifier continues to operate, proceed to Step 5. If the
rectifier shuts down due to initial high voltage, monitor the
RECT V voltage. When this reading reaches 26 volts for
24-volt plants, or 52 volts for 48-volt plants, turn On the DC
OUTPUT circuit breaker on the rectifier. If the rectifier shuts
down for any other reason, such as component failure, see
Section 7, Troubleshooting and Adjustments.
Caution
In the following step, DO NOT set the rectifier output voltage
to exceed 62 volts (48-volt rectifier) or 31 volts (24-volt
rectifier) or damage to the unit may result.
