Trouble Shooting Procedure for Power Circuits
✓ No voltage is obtained at the output of the charger.
|✓ Are Input Indicating Lamps glowing?|
|Is AC supply voltage available?||Is AC voltage available at the input of the rectifier bridge ?|
|Check for input supply failure||Check the lamp ballast resistance (R) and lamps||Check AC contactors||Check Thyristors / diode by measuring the Anode – Cathode resistance|
|Check the possible fault which could be an earth fault or short circuit in the Charger.||If even after energizing the Contactor no output results then check the transformer secondary voltage.||b) Check the electronic control circuit provided for automatic operations.|
|If secondary voltage is okay then check the semiconductor protection fuses.||Auto/Manual selector is selected in Manual Mode and potentiometers are kept in minimum position. Adjust potentiometers.|