Open position blocking device of breaker

Abstract

The invention discloses an open position blocking device of a breaker. When the open position blocking device of the breaker is in a non-blocking state, an open position blocking pin penetrates through a first locking hole in a rack of an operating mechanism of the breaker and keeps a certain distance with a closing trigger, the closing trigger can be triggered at the moment, and the breaker can be closed. When the open position blocking device of the breaker is in a blocking state, the open position blocking pin penetrates through the first locking hole and a second locking hole in a rack of an operating mechanism of the breaker and blocks the closing trigger, the closing trigger can not be triggered, and therefore the opening position of the breaker is kept unchanged and can not be closed. The open position blocking device of the breaker is placed on a platform of the rack of the operating mechanism of the breaker integrally, and accordingly the open position blocking device of the breaker is small in occupied area and compact in structure.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switches, and in particular relates to a locking device for the opening position of a circuit breaker. Background technique [0002] Traditional circuit breakers are usually used in conjunction with an isolating switch. When maintenance is required, the circuit breaker is opened and the isolating switch is separated and locked. Since the isolating switch can be controlled remotely, the open position of the circuit breaker is manually locked. However, for the isolation circuit breaker, it does not have an isolation switch, and the isolation fracture is replaced by the circuit breaker fracture. Therefore, when the isolation circuit breaker is in the open isolation state, it is necessary to remotely lock the circuit breaker operating mechanism to prevent the circuit breaker from operating. The circuit breaker is closed due to the misoperation of the mechanism. For this reason, it is necessary to...

AI Technical Summary

Problems solved by technology

However, for the isolation circuit breaker, it does not have an isolation switch, and the isolation fracture is replaced by the circuit breaker fracture. Therefore, when the isolation circuit breaker is in the open isolation state, it is necessary to remotely lock the circuit breaker operating mechanism to prevent the circuit breaker from operating. The circuit breaker is closed due to the misoperation of the mechanism. For this reason, it is necessary to design a locking device for the opening position of the circuit breaker that can be remotely controlled.

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