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www.power-tronics.com
Call Us at:
(830) 895-4700
Application Troubleshooting
Problem: Possible Cause
No Voltage
1 2 3 4 7 15 18 21
Pulsating Voltage
1 3 5 6 7 10 13 14 20 21
Flickering Voltage
1 3 5 6 7 9 10 12 13 14 16 17 18 19 20 21
High Voltage
6 7 9 11 12 13 15 18 21 22 23
Low Voltage
1 2 3 4 6 7 10 11 12 13 14 15 20 21
Poor Voltage Regulation
1 5 6 7 8 9 10 12 13 14 16 17 18 19 20 21
No Voltage Control
1 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23
Possible Causes:
1. Open or loose connection, poor brush and slip ring contact, fuses are open.
2. Dead battery.
3. Open exciter field or defective generator.
4. “Flash Enable” switch is open.
5. Open diode in exciter or shorted rotor in generator.
6. Loose component in voltage regulator.
7. Loose wiring connections.
8. Input voltage to regulator is too low.
9. Exciter field is grounded.
10. Non linear load or wrong selection for regulator hookup.
11. Exciter fields are reversed.
12. Wrong selection of regulator wiring configuration.
13. Defective voltage regulator.
14. SCR or Inverter drive effecting generator waveform.
15. Defective ABF10 Automatic Battery Flash Unit.
16. Isolation transformer is too small.
17. Isolation transformer is needed for AVR.
18. Exciter fields are not isolated from other circuits.
19. Input and field circuit are being fed by a common cable or conduit.
20. Incorrect hookup or wiring.
21. Exciter field is grounded.
22. Welded relay contacts.
23. Sensing leads disconnected, fused, or switched.
