In order to correctly carry out the functional self-test of the hipot tester, ensure the correctness and validity of the test results.
1. Ground the hipot tester case before use to ensure good and reliable grounding.
2. Plug in the plug, input power to the hipot tester, and place the high-voltage output line and the input low-end line in the air and safely.
Instrument operation check method:
Use a standard 300KQ resistor, the high voltage output wire and the input low end wire to clamp the two ends of the 300KQ resistor.
Adjust the test voltage to less than 1400V, set the current to 5mA, press and hold the “start” button, the instrument has no alarm to prove that the instrument is in good condition.
Adjust the test voltage to more than 1600V, set the current to 5mA, press and hold the “Start” button, the instrument will issue an alarm to prove that the instrument is in good condition.
ATO hipot tester is a high-voltage output device. Pay attention to safety when using it. The operator must wear insulating gloves. The inspection table and the ground are required to lay insulating pads. Cut off main power.
The function of the hipot tester must be checked every day before and after the formal test, and the inspection results must be recorded.
If the instrument is found to be abnormal, it should be repaired and maintained immediately.
After the repair is completed, retrospective re-inspection shall be carried out on the products tested between the two times.