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breaker

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Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they experience serious overload or short-circuit and under-voltage faults. Their functions are equivalent to fuse switches. In combination with over-temperature and under-temperature relays.

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Detailed introduction:
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breaker breaker breaker
breaker breaker breaker

Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they experience serious overload or short-circuit and under-voltage faults. Their functions are equivalent to fuse switches. In combination with over-temperature and under-temperature relays. In addition, it is generally not necessary to change parts after breaking the fault current. At present, it has been widely used.

In the generation, transmission and use of electricity, power distribution is an important link. The power distribution system includes transformers and various high- and low-voltage electrical equipment. Low-voltage circuit breakers are a large-scale and widely-used electrical appliance.

Circuit breakers are generally composed of contact systems, arc extinguishing systems, operating mechanisms, trip units, and housings.

When a short circuit occurs, the magnetic field generated by a large current (usually 10 to 12 times) overcomes the reaction force spring, the tripper pulls the operating mechanism, and the switch momentarily trips. When overload occurs, the current will increase, the heat generation will increase, and the bimetal will deform to a degree to promote the mechanism's action (the larger the current, the shorter the action time).

A circuit breaker is a switching device capable of closing, carrying, and breaking the current under normal circuit conditions and being able to close, carry and break the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high-voltage and low-voltage boundaries is relatively vague. Generally, more than 3kV is called high-voltage electrical appliances.

Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they experience serious overload or short-circuit and under-voltage faults. Their functions are equivalent to fuse switches In combination with over-temperature and under-temperature relays. In addition, it is generally not necessary to change parts after breaking the fault current. At present, it has been widely used.

In the generation, transmission and use of electricity, power distribution is an important link. The power distribution system includes transformers and various high- and low-voltage electrical equipment. Low-voltage circuit breakers are a large-scale and widely-used electrical appliance.