Resonant AC Voltage Withstand Test Device Series: Suitable for Handover and Preventive Testing of Large Capacity, High Voltage Electrical Equipment

The resonant AC withstand voltage test device uses new and innovative technology to complete various tests, reducing the required power capacity while overcoming the traditional resonant limit of only one cable's maximum working time of 3 hours. The patented technology design ensures the continuous withstand voltage requirements of multiple cables on the engineering site. To meet different levels of voltage testing, multiple reactors are designed separately and can be combined according to on-site testing requirements.

MSXZ (f) -540kVA/270kV Resonant AC Voltage Withstand Test Device: This device is mainly designed for 10kV, 35kV, 110kV cables, 110kV main transformers GIS、 The AC withstand voltage test of circuit breakers has a wide range of applications and is an ideal withstand voltage equipment for high-voltage testing departments and power installation and maintenance engineering units at the prefecture, city, and county levels. The resonant AC withstand voltage test device mainly consists of a variable frequency power supply, excitation transformer, reactor, capacitive voltage divider, and compensation capacitor.

1.110kV circuit breaker GIS, Test frequency 30-300Hz, test voltage 265kV, test time 1min

2.110kV/400mm ² cable 0.7km, capacitance ≤ 0.115uF, test frequency 30-300Hz, test voltage 128kV, test time 60min

3.110kVA/80000kVA main transformer with full insulation, capacitance ≤ 0.02uF, test frequency 45-65Hz, test voltage 160kV, test time 1min

4.10kV/300mm ² cable 8km, capacitance ≤ 3.004uF, test frequency 30-300Hz, test voltage 17.4kV, test time 60min

5.35kV/300mm ² cable 4km, capacitance ≤ 0.778uF, test frequency 30-300Hz, test voltage 52kV, test time 60min

The main functions and technical features of our company's resonant AC withstand voltage test device are:

1. The resonant AC withstand voltage test device has protection functions such as overvoltage, overcurrent, zero start, and system detuning (flashover).

2. The weight and volume of the equipment are 1/10-1/30 of that of a regular testing device. The power required for the experiment is only 1/Q of the test capacity.

3. The device has three working modes: fully automatic mode, manual mode, and automatic tuning manual boost mode

4. Store and print data, with numerical numbers for easy identification and retrieval by users.

5. The starting point of the frequency during automatic frequency scanning of the device can be set arbitrarily within the specified range.

6. DSP platform technology can add or remove functions and upgrade according to user needs, making the human-machine exchange interface more user-friendly.

7. Improve the waveform of the output voltage.

8. Prevent large short-circuit currents from burning the fault point.

9. There will be no overvoltage recovery.