Induction voltage withstand test device

Induction voltage withstand test deviceA test equipment for AC withstand voltage and partial discharge testing using frequency and voltage regulation methods. The device utilizes the principle of series resonance and can complete tests equivalent to 30-150 times the capacity of the power supply using a smaller capacity power supply, greatly alleviating the problem of insufficient capacity of the on-site test power supply. Widely used in industries such as power, metallurgy, petroleum, and chemical, it is suitable for handover testing and preventive testing of large capacity and high-voltage samples.

Induction voltage withstand test deviceMainly applicable:

10kV, 35kV, 110kV, 220kV, 500kV Cross linked Polyethylene Cables (XPLE) AC Voltage Endurance Test

66kV, 110kV, 220kV, 500kV GIS AC withstand voltage test

Power frequency withstand voltage test for large generator sets and power transformers

Induction withstand voltage test and partial discharge measurement test for power transformers

GIS、 Partial discharge measurement tests for power transformers, transformers, bushings, circuit breakers, switches, large generator sets, etc

AC withstand voltage test of other high-capacity and high-voltage test samples

Induction voltage withstand test devicePerformance indicators:

1. Environmental temperature: -10~45 ℃

2. Working humidity: ≤ 90%

3. Altitude: ≤ 2000M

4. Power input:
220V ± 10% single-phase, output 0-220V (≤ 10kW)

380V ± 10% three-phase, 50Hz output 0-400V

5. Rated test capacity: 0-8000kVA

6. Resonant voltage: 0-1000kV

7. Frequency adjustment range: 0.1-300Hz

8. System measurement accuracy: Level 0.5

9. Frequency adjustment resolution: 0.01Hz

10. Instability: ≤ 0.05%

11. Output waveform: sine wave

12. Waveform distortion rate: ≤ 0.5%

13. Noise: ≤ 60dB

14. Reactor Q value: 30-120

Induction voltage withstand test deviceProduct Features:

1. The large screen displays test data, test status, and has real-time operation step indication function.

2. Can flexibly adjust the test voltage, frequency range, and pressurization time.

3. The test results can calculate the capacitance value of the test sample and be printed.

4. Small size, light weight, and easy operation.

5. High resolution, frequency resolution of 0.01Hz, and voltage resolution of 0.01V.

6. High safety and reliability, the system has overvoltage, overcurrent, and discharge protection functions to ensure personal and equipment safety.

7. Upgradeable operating software.

Composition of complete testing equipment:

Frequency modulation power supply - can change both its output frequency and output voltage.

Excitation transformer - plays a role in coupling signals and voltage conversion, and increases voltage according to its own changes.

Reactor - connected in series with the test sample to form an LC series resonant circuit.

Capacitive voltage divider - measures the voltage on the test sample and feeds it back as a sampling signal to the frequency modulation power supply.

Compensation capacitance - adjust the frequency of the test sample by compensating for small capacitance of the test sample.