1. The waveform of output voltage and current is good, and the distortion is less than 0.5%;
2. The required capacity is small, the required power supply capacity is 1 / Q times of the test capacity, and the Q value can be 20 ~ 60;
3. There is no need for over-voltage protection. When the test object breaks down, the system is out of resonance and the resonance high voltage disappears. The reactor immediately limits the short-circuit current and will not aggravate the damage to the test object:
4. The device is a dry type combined series resonance device, which is composed of an excitation transformer and a plurality of resonance reactors;
5. The protection function is perfect, with zero position protection (when the voltage output control knob is not at zero position, it is forbidden to start the system), over-voltage protection, over-current protection, flashover protection and other functions, ensuring the reliability of the system.