UPGH66-7521-1 Circuit Protection

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Circuit Breakers: UPGH66-7521-1 Application Field and Working Principle

A circuit breaker is an electrical device which protects electrical systems from damage caused by excessive current. Circuit breakers are typically used in building and industrial electrical power systems. The UPGH66-7521-1 is a type of circuit breaker and it is specifically designed to protect medium voltage devices such as motors and generators from over-current, short-circuiting, and other electrical problems.

Application Field

The UPGH66-7521-1 is designed to protect medium voltage devices from over-current, short-circuiting, and other electrical problems. It is suitable for use on motors, generators, transformers, and other electrical equipment with ratings up to 5,000 V. The device is also suitable for use as a disconnecting switch and as a safety shut-off device during maintenance or repair activities. The UPGH66-7521-1 is suitable for both indoor and outdoor environments.

Working Principle

The UPGH66-7521-1 operates by using two-phase current sensors and a mechanical tripping device. When excessive current flows through the device, the current sensor detects the increase and sends a signal to the tripping device, which in turn trips the circuit breaker, breaking the circuit and stopping the flow of electricity. The UPGH66-7521-1 incorporates an electronic trip setting, which can be adjusted to suit the requirements of the application.

The trip setting can be adjusted to be sensitive to current over-load or short circuit conditions and can be set to trip immediately or to allow for a certain amount of time before the trip occurs. The UPGH66-7521-1 also has thermal protection which limits the current by means of a heat sensitive trip setting. The device includes a variety of protection functions, including High Impedance Fault Detection, Over Temperature Protection, Motor Overload Protection, and Undervoltage Release.

Conclusion

The UPGH66-7521-1 circuit breaker is designed to protect medium voltage devices from over-current, short-circuiting, and other electrical problems. It is suitable for use on motors, generators, transformers, and other electrical equipment with ratings up to 5,000 V. The device incorporates an electronic trip setting which can be adjusted to suit specific requirements. The UPGH66-7521-1 also has various protection functions, including High Impedance Fault Detection, Over Temperature Protection, Motor Overload Protection, and Undervoltage Release.

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