5-10
Table 5-3. Troubleshooting Chart - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. VOLTAGE LOW AND CONTROLLABLE WITH VOLTAGE ADJUST RHEOSTAT - Continued.
Step 3.
Check that prime mover is operating at rated speed.
If prime mover is operating below rated speed, adjust prime mover speed to rated.
If prime mover is operating at rated speed, proceed to step 4.
Step 4.
Verify that the sensing leads are properly connected to the generator and regulator.
If the sensing leads are improperly connected, reconnect properly.
If the sensing leads are properly connected, proceed to step 5.
Step 5.
Verify the accuracy and connection of the voltmeter.
If voltmeter is improperly connected, reconnect voltmeter properly.
If voltmeter is defective, replace voltmeter.
If voltmeter is connected properly and not defective, proceed to step 6.
Step 6.
If the above steps fail to correct the malfunction, replace or repair the voltage regulator
as necessary.
6. POOR REGULATION.
Step 1.
Verify that exciter/generator field requirements are not in excess of voltage regulator
capability.
If regulator application is incorrect for regulator, contact Basler Electric.
If regulator application is within regulator limits, proceed to step 2.
Step 2.
Verify that input voltage at terminals 3 and 4 is of the correct value.
If input voltage is incorrect, apply correct voltage to terminals 3 and 4.
If input voltage is correct, proceed to step 3.
Step 3.
Check that the voltmeter is connect to the same location as the regulator sensing.
If voltmeter is not connected to same location as the regulator sensing, reconnect
voltmeter.
If voltmeter is properly connected, proceed to step 4.
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