Basic Features of High Voltage Vacuum Circuit Breakers

When using the high-voltage vacuum circuit breaker, in order to better exert the corresponding performance, it is necessary to understand the corresponding characteristics. Its main feature is that the contact opening distance is small, even for a 10KV vacuum circuit breaker, the contact opening distance is only about ten millimeters. Not only that, the operating work of the corresponding operating mechanism is smaller, the shape of the mechanical part is small, and the mechanical service life is relatively long.

The arcing time is relatively short and has nothing to do with the switching current, usually only half a cycle. After extinguishing, the recovery speed of the contact gap medium is faster, and the fault resistance to the near area of the breaker is better. Due to dredging when breaking the current, the amount of wear is small. For this reason, the electrical life of the contacts is long. The full capacity breaking can reach 30 to 50 times, and the rated current breaking can reach more than 5,000 times, and the noise is suitable for frequent operations.

Not only that, the high-voltage vacuum circuit breaker is relatively small in size and correspondingly light in weight. Mainly suitable for breaking capacitive load current. The advantages of the product are relatively many, and it is currently widely used in substations.