Hight Voltage Trip

Symptom

The high voltage trip light is illuminated on the display panel when the power supply is started.

Fault

A breakdown in the dielectric of the electrode, roll covering or high voltage wire insulation has occurred. The fault is in the output load section of the power supply.

Solution

1. Inspect the station for a failed electrode.
   1. It may be possible to hear a "snap" or see an arc, which will help locate the high voltage short in the station.
   2. To reduce the troubleshooting time, disconnect half of the electrodes to isolate the failed or pinholed electrode.
      CAUTION! - When reducing the load on the power supply, limit the power demand by the same amount. (i.e. If 4 electrodes make the station load, and 2 electrodes have been disconnected for troubleshooting purposes, do not exceed 50% of the power supply's power capability.) Overpowering the electrode may cause electrode failure.
   3. If a failed electrode is isolated, replace the electrode.
   4. If the high voltage trip occurs on all electrodes, proceed.
2. Inspect the station high voltage wiring, terminal blocks, and feed through tubes for defects or breakdown.
   1. Ensure the high voltage lead is isolated from ground and all control wires.
   2. Check the wiring for the electrodes including the transformer leads.
   3. If multiple transformers are employed, isolate each transformer.
3. Check to ensure the input wires to the high voltage transformers have not shorted.
   1. The wires from the power supply to the high voltage transformer must be twisted at least one turn per foot and run in a non-magnetic conduit.If not, the wire insulation may melt resulting in the wires shorting.
4. If problems still exist contact Enercon's Service Department.