The power input of thevariable frequency series resonant withstand voltage test deviceis divided into two parts. From the production design requirements of the variable frequency series resonant withstand voltage test device, the "working power supply", as the name suggests, is mainly used to provide power for the normal operation of the instrument. It can also be referred to as variable frequency series resonant withstand voltage. The frequency modulation power box of the testing device provides neural control for the working power supply, and the "power supply" provides a guarantee for the resonant output high voltage of the upper and lower stages. The quality of power supply is directly related to the output voltage and power when testing cables or tested products.

1. The working power supply of the instrument generally needs to be connected to 220V; the recommended power supply for the equipment is 380V;

2. The live wire of the instrument's working power supply should be disconnected from the 380V live wire of the power supply. Try to avoid using welding machines and other equipment on power lines to prevent interference.

3. If using a generator for power supply, the neutral wire should be grounded;

4. If it is found that when the power output of the variable frequency series resonant withstand voltage test device is started, the online air switch or circuit breaker of the connected 380V power supply drops, it indicates that the current or air switch of the circuit breaker is too small and not suitable for the test power supply. According to the requirements, a suitable air switch or circuit breaker can be replaced.

Wuhan UHV specializes in the production ofseries resonance (also known as variable frequency series resonance complete equipment)and has been engaged in the electrical measurement industry for many years. Its products have first-class quality and welcome customers to come and purchase.