Lucent Technologies Lineage
®
2000 200A Ferroresonant Rectifier J85503B-2
7 - 16 Troubleshooting and Adjustments
Issue 8 January 1999
In steps (4) and (5) of the Current Limit Test in Section 6, if V
out
is not within the required range, adjust R88 on CM2 (see Figure
6-3) until a correct voltage reading is obtained.
On Line Adjustment: Use the Current Limit Test (On Line),
Section 6, to verify that the current limit circuit needs
adjustment, before continuing with this procedure.
1. Hold the Rect Test switch in the full load (FL) position
and observe the output current.
2. If the output current is not within 200-202A, hold the Rect
Test switch in the full load (FL) position and adjust the
current limit potentiometer R88 on CM2, (see Figure 6-3),
until the rectifier delivers 200-202A.
Warning
The rectifier is designed to provide 200 amperes. If the current
limit is set beyond this rating, the unit may overheat, and its
useful life may be severely shortened.
ISHVSD in
Plants Without
a Controller
To avoid overvoltage conditions on the actual battery plant
loads, perform this procedure with the rectifier disconnected
from the battery. A portable test load that can supply at least
220A, 10 percent above the rectifier's current rating, is required.
1. Connect the test load as specified in Section 6. Then
restore ac power to the rectifier.
2. Turn the Power switch On.
3. Turn the CB1 circuit breaker On.
4. Adjust test load to 220A or greater. Read load current on
control panel meter.
5. Open switch contacts S3.7 and S3.8 on CM2.
6. Adjust the Float Adj potentiometer to obtain a rectifier
voltage of 55.0 (29.0) ± 0.6 volts. Read voltage on control
panel meter by holding meter switch in Rect V position.
The rectifier should shut down.
7. Decrease the load to less than 2 percent and restart the
rectifier. The rectifier should start and operate normally. If
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