Jiangsu frequency conversion series resonant withstand voltage test device manufacturer

Jiangsu frequency conversion series resonant withstand voltage test device manufacturer

Working Principle:

We know that when the circuit frequency f=1/2 π√ LC, resonance occurs in the circuit, and the voltage on the test sample is Q times the output voltage of the excitation transformer high voltage end. Q is the system quality factor, which is the voltage resonance multiple, generally ranging from tens to hundreds or more. First, adjust the output frequency of the variable frequency power supply to induce series resonance in the circuit, and then adjust the output voltage of the variable frequency power supply under the condition of circuit resonance to achieve the test value of the sample voltage. Due to the resonance of the circuit, a smaller output voltage of the variable frequency power supply can generate a higher test voltage on the test sample CX.

Technical features:

1. Reliable quality ensures the safety of testing personnel, test subjects, and testing equipment themselves;

2. Small size, light weight, especially suitable for on-site use;

3. Can flexibly adjust the experimental voltage, frequency range, and pressurization time;

4. Equipped with computer communication interfaces for easy communication and management of experimental data;

5. High resolution, frequency resolution of 0.001HZ;

6. Meets national standard requirements: It has the function of monitoring peak/√ 2 and can monitor test waveforms in real time;

7. Overvoltage, overcurrent, discharge, overheating, and zero start protection are comprehensive and reliable, with an action time of 1 microsecond;

8. The device comes with a micro printer that can print and save test data in a timely manner;

9. Designed to withstand vibration and dust according to standards, able to withstand long-distance transportation and harsh usage environments;

10. One click mouse style knob 'foolproof' operation, large screen LCD display of test data and test status, and real-time operation step prompt function;

11. Unique software calibration function, convenient for users to calibrate meters, ensuring the accuracy of high voltage values;

Main applications:

1. AC voltage withstand test of 6kV-500kV high-voltage cross-linked cable

2. AC voltage withstand test of generator

3. AC withstand voltage test for GIS and SF6 switches

4. Power frequency withstand voltage test of 6kV-500kV transformer

5. AC withstand voltage test for other high-voltage electrical equipment such as busbars, bushings, and transformers.

Jiangsu frequency conversion series resonant withstand voltage test device manufacturer