Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
2 - 6 Product Description
Issue 4 May 1998
Remote shutdown
Internal selective high voltage shutdown (ISHVSD)
Restart feature
Limited output alarm (LOA)
Fuse alarm
Electronic current limit
Output current isolation circuit
•
The CM3 circuit module (207A meter board) controls the
digital Output meter on the control panel of List 10
rectifiers. The meter displays the rectifier's output current,
voltage, or the plant battery voltage depending on the
three-position selector switch (see Figure 2-1).
•
The CA1 circuit module (ED83156-30 Group 1) contains a
triac/thyristor snubber network. Refer to schematic drawing
SD82604-01 for further information.
•
The CM5 circuit module (434A or B) has ac and dc voltage
monitor circuits. When activated, these circuits shut down
the rectifier. The dc circuit issues an RFA alarm. The
rectifier must be restarted when the problem has been
cleared. When the ac circuit is activated, the rectifier shuts
down but automatically restarts when the corrected ac
voltage is restored.
Front Panel
Controls and
Indicators
Figure 2-1 shows the control panel of the J85502A-1 25-ampere
rectifier. The following list describes the controls and indicators
on the control panel. These features should be observed and
manually operated during normal rectifier performance. Bold
letters indicate labels that appear on the control panel or inside
the rectifier.
Caution
Equipment damage may occur if circuit modules are
connected or disconnected with voltages present. See
Section 8 for how to replace circuit modules and for
proper handling of circuit modules to avoid damage from
electrostatic discharge.
