Detailed Information on the Fourth-Level Qualification High-Voltage Test Equipment Table for Undertaking Tests
Fourth-Level Qualification High-Voltage Test Equipment Table ◆ High-Voltage Test Equipment:
1 set of 50kV/5kVA high-voltage test transformer (transformer, control box, voltage regulator);
1 set each of 60kV/2mA DC high-voltage generator (test instrument, matching wires);
1 unit of 50kV AC/DC voltage divider (divider, matching voltmeter);
1 set of 200kV variable frequency series resonance complete test device;
1 set of 50kV AC withstand voltage test system machine,
1 set of high-voltage dielectric loss tester (test wires, dielectric bridge, control box, step-up transformer, phase shifter);
1 unit of 100A loop resistance tester (test instrument, matching wires);
1 set of 0-20Ω ground resistance tester (test instrument, matching wires, grounding electrode);
3 units of 10kV/0.5 class voltage transformer;
3 units of 10kV/0.5 class current transformer;
1 unit of 10A transformer DC resistance tester;
1 unit of transformer turns ratio bridge;
1 unit of high-voltage switch mechanical characteristic tester;
1 unit of double-arm bridge QJ44;
1 unit of single-arm bridge QJ23;
1 unit each of 500V 1000MΩ, 1000V 2000MΩ, 2500V 10000MΩ insulation resistance tester,
1 unit of 5kVA single-phase voltage regulator;
1 unit of infrared tester, etc.
1 unit of current transformer secondary circuit load tester
Fourth-Level Qualification High-Voltage Test Equipment Table ◆ Relay Protection and Electrical Measuring Instruments:
1 set of three-phase microcomputer relay protection test tester;
1 set of single-phase relay protection comprehensive tester;
1 unit of high-precision clamp phase meter;
1 unit of standard AC ammeter not lower than 0.2 class;
1 unit of standard DC ammeter not lower than 0.2 class;
1 unit of standard AC voltmeter not lower than 0.2 class;
1 unit of standard DC voltmeter not lower than 0.2 class;
1 unit of standard AC microammeter not lower than 0.2 class;
1 unit of standard DC microammeter not lower than 0.2 class;
1 unit of 1000V megohmmeter;
1 unit of 2500V megohmmeter;
1 unit of high-current generator (current booster);
1 unit of phase sequence meter;
1 unit of ordinary oscilloscope;
2 units of digital multi-function clamp meter;
1 unit of 0.5 class digital multimeter, etc.
Fourth-Level Qualification High-Voltage Test Equipment Table ◆ Oil and Gas Test Instruments:
1 unit of insulating oil dielectric strength tester (test instrument, oil cup, matching wires);
◆ Other Commonly Used Instruments and Meters
6 units of various AC/DC meters not lower than 0.5 class;
1 unit of ground resistance tester (earth tester);
1 unit of analog voltmeter;
1 unit of analog ammeter;
Multimeters and other test instruments, meters, and safety tools.![]()


