Industry News

Vacuum circuit breaker is a kind of electrical switch, with overload, short circuit and undervoltage protection function, have the ability to protect the line and power supply, its small size, light weight, suitable for breaking capacitive load current. At present, the survival of the vacuum circuit

Vacuum circuit breakers are now widely used in industrial production and distribution, very common products such as VS1-12 vacuum circuit breakers, but because of its high working voltage rating, high current, flying fox capacity, resulting in many problems and hidden dangers, a single improper hand

1.1 Fault phenomenon Vacuum circuit breaker in the vacuum bubble to open the current and interrupt the arc, and the vacuum circuit breaker itself does not have qualitative and quantitative monitoring vacuum characteristics of the device, so the vacuum degree reduction fault for the hidden fault, the

When testing, you should gradually move closer to the energized equipment to glow or sound stop to verify the integrity of the vacuum circuit breaker. Then test the equipment in the need for power testing. The same pole erected multi-layer line test, should be tested first low-voltage, then high-vol

The ground switch does not need to open the load current and short-circuit current, so there is no arc extinguishing device. The lower end of the gate is usually connected to the grounding point through the current transformer. The current transformer can give signals for relay protection. There are

disconnector is a kind of electrical equipment, mainly used to isolate different parts of the circuit in order to protect the safety of personnel when repairing, overhauling or replacing electrical equipment. The functions and roles of isolators are very important, and the following details the clas