Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Installation 5 - 11
The J85502A-1 rectifier is capable of supplying a new battery
string with its initial charge. Since the voltage levels
recommended by battery manufacturers for initial battery
charging are considerably above the normal plant voltage,
neither the battery nor the rectifier used to supply its initial
charge should be connected to the rest of the plant during this
procedure. One rectifier should be sufficient to supply the
charge. However, the high voltage shutdown levels must be
raised to accomplish the initial charge. The following procedure
describes how to raise the high voltage shutdown levels.
1. Set the ac supply and rectifier controls as shown in Table
5-C.
2. Move the straps provided for options “Q” and “T” (P15
and P16) on the CM1 option board from normal position
to charge position as shown in Figure 6-2.
3. At the ac service panel supplying power to the rectifier,
insert the input fuses assigned to the rectifier or turn the
circuit breaker On.
4. Close the rectifier door and turn the POWER switch On.
The green POWER ON LED must light. (If not, do not
attempt to turn On the circuit breaker. Troubleshoot the
problem as described in Section 7.) Wait 10 seconds.
Table 5-C: Rectifier Settings for Initial Battery Charge
Controls
Status/Position
Rectifier POWER switch
Off (down)
Rectifier DC OUTPUT circuit breaker Off (down)
OUTPUT VOLTS ADJ potentiometer
Fully
counterclockwise
Plant control connector J2A on CM2
control board mounted on inside of
door
Disconnected from
P2A on CM2
Warning
Do not remove the ZJ optional strap on the CM1 option board
when the rectifier is equipped with a 205A1 control board.
