Common faults of DC Hipot test:
When the power switch of hipot tester is turned on, the digital indicator on the control box does not light up. Please check the power connection and all the fuses. If the fuse is damaged, please replace it with a new one according to the amperage marked beside the fuse holder.
If the power switch is turned on, the digital display is on, the high voltage indicator (green) is off, and the high voltage cannot be added.
The fault display “return to zero” light is on, but there is no return to zero, please turn the high-voltage output adjustment knob and fine-tuning knob counterclockwise to return to the zero position until the “return to zero” light is off, then the high voltage can be applied.
There are two phenomena when the fault display “other” light is on: 1. grounding protection, 2. disconnection protection.
Maybe the ground wire is not properly connected, or the ground wire is not reliably grounded. Please connect a reliable ground wire, turn off the power, and restart.
It may be that the cable connecting the control box and the high-voltage tower is not properly connected. After connecting the cable, please turn off the power and restart of hipot tester.
This fault will occur when the welding heads at both ends of the cable are unsoldered. Please weld the welding heads at both ends of the cable, turn off the power, and restart.
It is possible that a wire in the control box is desoldered and disconnected. Please re-solder, turn off the power and restart.