AC contactors will encounter various technical problems during use. This form provides some common problems and solutions.
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AC contactors often use three arc extinguishing methods: double-fault electric arc extinguishing, longitudinal slit arc extinguishing and grid arc extinguishing. It is used to eliminate the arc generated...
As an electromagnetic relay commonly used in electrical control systems, contactors have many specifications. Generally, the contactor controls the closing and breaking of the main contact by controlling t...
The circuit breaker uses air as a medium for arc extinguishing, so it is also called an air-type low-voltage circuit breaker. Because of its convenient operation and high safety electronic products world...
⑴ The coordination of circuit breaker and circuit breaker should consider the instantaneous release action value of the upper-level circuit breaker, which should be greater than the maximum expected short-...
The intelligent circuit breaker mechanism is located on the front of the circuit breaker. The mechanism adopts a five-bar linkage free release mechanism and is designed in the form of energy storage. Dur...
The fully insulated is to seal the 10KV primary charged high-voltage components such as busbars, circuit breakers, isolating switches, transformers, etc. in a lower pressure (0.1～0.5mpa) sf6 gas, using the...
Molded case circuit breakers are also called device circuit breakers. All parts are sealed in a plastic case. The auxiliary contacts, undervoltage releases and shunt releases are mostly modularized. Due to...
GCK low voltage withdrawable switchgear is widely used in power plants, substations, factories and mining enterprises and power distribution centers PC and motor control centers MCC in high-rise buildings,...