Nader Circuit Breaker

1. The contact of a certain phase of the circuit breaker cannot be closed (1) Check whether the connecting rod is broken or deformed. (2) If it is a current-limiting type circuit breaker, check whether the angle between the detachable connecting rods of the disassembly mechanism is deformed. 2. Manua...

The operating over-voltages of vacuum circuit breakers mainly include blocking over-voltage, reignition high-frequency over-voltage, thumping through voltage, bounce-over voltage and so on. The interception overvoltage and the reignition overvoltage are generally generated when the inductive load is ...

Circuit breakers are widely used in electrical panel cabinets and instrument panel cabinets. Familiar with the normal use conditions and installation conditions of circuit breakers is of great significance to improving the reliability and safety of electrical and automatic systems. This article provi...

The structural principle and working process of the safety valve of the high-voltage circuit breaker operating mechanism. The pressure relay is mainly installed on the hydraulic operating mechanism and compressed air operating mechanism of the circuit breaker. It has multiple pairs of electrical cont...

(1) The structure of the liquid pressure safety valve. Take the structure of a liquid pressure safety valve as an example, and its structure is shown in Figure 1. It is mainly composed of combined springs, springs, pistons, circlips, guide rods, gaskets and other components. (2) The working principle...