The high-voltage series resonance test device uses new and innovative technology to complete various tests, reducing the required power capacity while overcoming the traditional resonance that can only meet the maximum working time of one cable for 3 hours. The patented technology design ensures the continuous voltage resistance 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) -4000kVA/800kV High Voltage Series Resonance Test Device: This device is mainly designed and manufactured for the AC withstand voltage test of switches and transformers with voltage levels of 110kV, 500KV and below. It has a wide range of applications and is an ideal high-voltage testing equipment for local, municipal, and county-level high-voltage testing departments, as well as power installation and maintenance engineering units. The device mainly consists of a variable frequency power supply, excitation transformer, reactor, capacitive voltage divider, and compensation capacitor.

1. 500KV and below voltage level switches and transformers, test frequency 30-300Hz, test voltage 740kV, test time 1min

2. 220kV/630mm² cable 1km, capacitance ≤ 0.17uF, test frequency 30-300Hz, test voltage 216kV, test time 60min

3. 110kV/630mm² cable 3.5km, capacitance ≤ 0.7uF, test frequency 30-300Hz, test voltage 128kV, test time 60min

Main functions and technical features:

1. The high-voltage series resonance 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.