Nader Circuit Breaker

The SF6 circuit breaker adopts a self-energizing arc extinguishing structure, which mainly uses the high-pressure thermal expansion airflow in the pressure cylinder and the blocking effect of the hitting arc to increase the gas pressure in the high-pressure cylinder at the opening of the circuit brea...

Circuit breaker is a kind of load switch, which has short-circuit and overload protection functions, and its short-circuit protection function is realized by electromagnetic coil. Because of its complete protection function, easy maintenance and use, it is widely used in power systems. This article i...

Whether a circuit breaker can operate effectively and reliably depends to a large extent on the performance and quality of the operating mechanism. Therefore, depending on the circuit breaker, the operating mechanism equipped with it should meet the required nature and reliability, mainly as follows:...

Low-voltage circuit breaker, originally called air circuit breaker. It is mainly used to automatically break the circuit and cut off the power supply when the circuit is overloaded, short-circuited, and undervoltage. A common fault of low-voltage circuit breakers is failure to close. The reasons for ...

In order to correctly judge the status of high-voltage circuit breakers through preventive test data analysis, simple, safe and effective test methods are used to provide a basis for the state maintenance of circuit breakers. The following introduces several commonly used preventive test analysis met...