2. Characteristics of the Series-Parallel Resonance Test Device:

2.1 The series-parallel resonance test device has large output capacity, high output voltage, and can arbitrarily combine reactors for AC withstand voltage tests on different test objects.

2.2 The series-parallel resonance test device is compact in size, light in weight, and especially convenient for field tests.

2.3 The series-parallel resonance test device has good protection functions, including overvoltage protection, overcurrent protection, time protection, flashover protection, overtemperature protection, module protection, and other functions.

2.4 The series-parallel resonance test device is extremely simple to operate and has both manual and automatic modes.

2.5 The series-parallel resonance test device uses a large screen, making test data clear at a glance, and can print test results.

2.6 The series-parallel resonance test device has no risk of overvoltage after the test object breaks down, causing minimal damage to the test object.

2.7 The series-parallel resonance test device requires small power supply capacity, only a fraction of that needed for power frequency transformer tests, solving the problem of finding power sources on site.

3. Applicable Scope of the Equipment

3.1 Satisfies the AC withstand voltage test for 300mm2/10KV cables up to 3 kilometers in length.

4. Standards Referenced and Implemented in Equipment Manufacturing

DL/T849.6—2004      《High Voltage Resonant Test Device》

GB 6450—1986        《Dry-type Power Transformer》

DL/T848.2—2004      《Test Transformer》 

GB/10229—1988       《Reactor》 

GB/T11920—1989      《General Technical Conditions for Control Devices》

GB/T16927.1—1997    《High Voltage Test Techniques》

IEC358—1990         《Coupling Capacitors and Capacitor Dividers》

GB311.1              《Insulation Coordination for High Voltage Transmission and Transformation Equipment》

DL/T846—2004        《General Technical Conditions for High Voltage Test Equipment》

Q/CSG10007—2004    《Preventive Test Regulations for Power Equipment》

GB7328—87          《Measurement of Sound Level of Transformers and Reactors》

DL474.4—1992      《AC Withstand Voltage Test》