IEGHF66-35175-15-V

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Circuit Breakers: IEGHF66-35175-15-V Application Field and Working Principle

A circuit breaker is an automatic switch used to control and protect electrical circuits from short circuits, overloads, and ground faults. IEGHF66-35175-15-V is an example of circuit breaker, it has a wide range of applications. In this article, we will discuss the application field of IEGHF66-35175-15-V and its working principle.

IEGHF66-35175-15-V Applications

IEGHF66-35175-15-V is a type of three-phase power circuit breaker used in the electrical power distribution system of electric power plants, substations and industries, etc. It is suitable for AC 50 Hz power systems with rated voltage of 1140V and 690V.

The IEGHF66-35175-15-V power circuit breaker provides excellent protection against short circuit, overload, phase failure and long time loading, etc. The circuit breaker is designed with load breaking capacity of 30kA at 30s, short circuit breaking capacity of 60kA at 0.3s or 50kA for 3 seconds, and 3 phase instantaneous overcurrent breaking capacity of 40kA.

IEGHF66-35175-15-V circuit breaker is also suitable for protection and control of motor. Thanks to its advanced technology and high reliability, the circuit breaker is widely used in industrial and mining enterprises, such as chemical industry, power transmission and transformation, light industry, electric locomotives and automobiles, petroleum, petrochemical and other fields.

Working Principle of IEGHF66-35175-15-V

As a kind of circuit breaker, IEGHF66-35175-15-V is mainly composed of an operating mechanism, a vacuum interrupter, a coil and an iron core, which are all connected in series. When the circuit breaker is closed, the iron core of the operating mechanism and the iron core, the coil and the moving contact of the vacuum interrupter are energized. The current passing through them is the same as that of the external circuit.

When faults, such as over-voltage, over-current, and short circuit occur in the external circuit, the instantaneous overcurrent released will cause the coil of the operating mechanism to generate a pulling force, so that the iron core is moved downward along with the moving contact, and finally the vacuum interrupter is tripped off. As a result, the circuit breaker is disconnected from the circuit.

Due to the good arc-extinguishing performance of the vacuum interrupter, arc can be quickly and completely extinguished at the time of breaking, and no residual current will be left. Moreover, due to the good insulation performance of the vacuum interrupter, it can also ensure the safety of operators and on-site installations.

Conclusion

In conclusion, IEGHF66-35175-15-V is a kind of three-phase power circuit breaker which has a wide range of applications in electric power distribution system, and the working principle is based on the structure of the operating mechanism, the vacuum interrupter, the coil and the iron core.

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