Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
Issue 8 July 1999
Testing 6 - 11
52.08 volts (48-volt rectifier)
26.04 volts (24-volt rectifier)
4. Remove strap from capacitor C24 on CM2. Observe that
V
out
is
51.98 - 52.03 volts (48-volt rectifier)
25.99 - 26.01 volts (24-volt rectifier)
If not, see “Adjust Current Limit” in Section 7.
5. Increase the load to 136-139A, 110 ± 1 percent. V
out
should be below
51.58 volts (48-volt rectifier)
25.79 volts (24-volt rectifier)
If not, see “Adjust Current Limit” in Section 7.
6. Decrease the load to 120-123A, 96 to 98 percent of the
rectifier rating. Observe that V
out
is greater than
52.03 volts (48-volt rectifier)
26.01 volts (24-volt rectifier)
Backup High
Voltage
Shutdown
(HVSD) Test
(Off Line)
1. If the DC OUTPUT circuit breaker is On, turn it Off
(down).
2. Disable the internal selective shutdown by moving the Q
(P15) or T (P16) movable straps on CM1 to the Charge
position. (See Figure 6-2 and refer to Table 8-B for
options.) Verify that moveable strap P14 remains in the 2-3
(NOT the Charge) position for this test and after the
rectifier is placed into service. The P14 Charge position is
only used to raise the Backup HVSD level of the rectifier
when it is being used for applying the initial charge to
connected batteries.
3. Slowly turn the OUTPUT VOLTS ADJ potentiometer
clockwise until the rectifier shuts down. This should occur
between 32.25 and 33.50 volts (24-volt rectifier) or
between 63 and 66 volts (48-volt rectifier). The RFA on
the rectifier and the RFA on the test set should light.
4. Turn the OUTPUT VOLTS ADJ potentiometer
counterclockwise.
