What Are The Items Of High Voltage Test?

Asa means to check whether the power equipment can operate normally, high voltage test is widely used. What are the high voltage test items? What are the corresponding high-voltage test equipment? GDZX summarizes and classifies for you.

1. Insulation test of coil equipment

The tests include: insulation resistance, absorption ratio (polarization index) test, leakage current test, dielectric loss tangent Tanδ test, external power frequency withstand voltage test, induced withstand voltage test andpartial discharge test.

The high-voltage test equipment used include: Digital megger, full-automatic dielectric loss tester, complete power frequency voltage withstand test device, induction voltage withstand test device, partial discharge detector, etc.

2. Characteristic test of coil equipment

The tests include: transformation ratio, polarity and wiring group test, DC resistance test, no-load, short circuit characteristic test, zero sequence impedance test, tap changer test, winding deformation test, excitation characteristic test.

The high-voltage test equipment used include: full-automatic transformer ratio group tester, transformer no-load load characteristic tester, transformer DC resistance tester, transformer winding deformation tester, etc.

3. Switch equipment test

The tests include: insulation resistance test, leakage current test, dielectric loss tangent Tan δ test, circuit breaker, GIS loop resistance test, circuit breaker, GIS withstand voltage test, GIS partial discharge test.

The high-voltage test equipment used include: insulation resistance tester, full-automatic dielectric loss tester, circuit breaker mechanical property tester, loop resistance tester, partial discharge tester, etc.

4. Insulator and bushing test

The tests include: insulation resistance test, dielectric loss tangent value Tan δ and capacitance test, AC withstand voltage test and partial discharge test.

The high voltage test equipment used include: insulation resistance tester, full-automatic dielectric loss tester, portable withstand voltage tester, partial discharge detector, etc.

5. Overhead line and cable test

The test includes: insulation resistance test, phase check, AC (DC) withstand voltage and DC leakage test of cable, power frequency parameter test of overhead line and cable line, capacitance current test.

The high voltage test equipment used include: insulation resistance tester, insulation resistance tester, DC high voltage generator, power frequency line parameter tester, power frequency line parameter tester, etc.

6. Capacitor test

The tests include: insulation resistance test, capacitance test, dielectric loss tangent Tan δ test, AC withstand voltage test.

The high voltage test equipment used include: insulation resistance tester, full-automatic dielectric loss tester, portable withstand voltage tester, etc.

7. Arrester test

The tests include: insulation resistance test, conductivity current test, power frequency discharge voltage test, discharge counter test, DC 1mA voltage (U1mA) and leakage current test under 0.75u1ma, AC leakage current test under operating voltage, power frequency reference voltage test under power frequency parameter current, etc.

The high voltage test equipment used include: insulation resistance tester, arrester discharge counter calibrator, power frequency line parameter tester, etc.

8. Grounding device test

The test includes: grounding resistance test, grounding down lead and grounding grid conduction test, soil resistivity test, contact voltage, step voltage and potential distribution test.

The high voltage test equipment used include: ground down lead on tester, digital ground resistance tester, insulator distribution voltage detector, etc.

9. Test of common electrical insulation tools and instruments

The test includes: insulation tool test, protection tool test, device and equipment test.

The high voltage test equipment used are: digital earth resistance tester.

For the high-voltage test equipment used in the above high-voltage test project,GDZXhas has a large amount of spot supply, welcome to inquiry.