Partial Discharge Tester Safety Tips

1. The operation and maintenance of the partial discharge tester should be carried out by competent professionals.
2. The test site voltage of the partial discharge tester is as high as tens of thousands of volts, and the test personnel should strictly abide by all safety precautions. There should be obvious and clear warning signs in the test area, and anyone on site should be aware of the high voltage area. Those who are directly involved in the measurement should know all the live components and high-voltage components in the measurement circuit, and those who are not directly involved in the measurement should be isolated from the test area. During the test and after power on, no one is allowed to enter the high voltage area.
3. Before the test, the operator should master the test circuit, test method, test procedure and test purpose.
4. The test site should be neat and clean, and other irrelevant items should not be stored. There should be no messy metal pieces (such as bare copper wire segments, screws, nuts and other small metal pieces, etc.) on the ground in the high-voltage area, and the tested product, step-up transformer, coupling capacitor, etc. should be kept at an appropriate distance from the surroundings.
5. The surface of the tested product, step-up transformer, coupling capacitor, etc. should be kept dry and clean, because the moisture and dirt on the surface will cause partial discharge on the surface, resulting in abnormal measurement.
6. The test operators connect the lines according to the requirements of the regulations. All metal objects in the test area should be firmly grounded, check and improve all possible discharge parts in the test area (such as no sharp or sharp angles), and pay special attention to whether the various ground wires are well grounded. .
7. Before the test starts to pressurize, the test personnel must check the circuit in detail and comprehensively to avoid wrong connection of the circuit. Special attention should be paid to whether the grounding wire, high voltage wire and the connection wire of the strong current circuit are firmly connected.
8. When the test is abnormal, the power supply should be cut off first, and then further processing should be carried out.