0902072

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Circuit Breakers are a critical component in ensuring the quality and reliability of electric power distribution systems. The 0902 072 application field and working principle are derived from the requirements and conditions of their applications.

Common types of circuit breakers include low-voltage circuit breakers (LVCB) and medium voltage circuit breakers (MVCB), which have different characteristics and work principles.

LVCBs are used to protect low-voltage circuits from overloads, short circuits, overvoltage, and ground faults. These breakers use overload and fault protection devices, such as temperature detectors, ground fault detectors, overvoltage detectors, etc. to detect abnormal current. When abnormal conditions are detected, the circuit breaker will trip and break the circuit, thereby protecting the downstream components and circuits.

The working principle of MVCs is the same as that of LVCs, with the difference that they are used to protect medium-voltage circuits. The MVCs use sensitive current relay devices to detect abnormal current in the circuit, and when abnormal conditions are detected, the circuit breaker will trip and break the circuit. The MVCs also use thermal overload protection devices that are close to the center of the breaker, as well as magnetic overcurrent protection devices.

In addition, circuit breakers can be designed to provide a wide range of functions and applications. Examples of these functions and applications include surge protection, motor protection, time delay, overvoltage protection, remote control, and others.

The 0902 072 application field and working principle are important for ensuring the safe, reliable operation of electric power systems. By understanding the functions and working principle of circuit breakers, designers and engineers can ensure that the system operates optimally in all conditions.

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