Indoor high-voltage vacuum circuit breaker

Abstract

An indoor high-voltage vacuum circuit breaker comprises a shell, a switching-on bending plate, a switching-off pawl, a switching-off pawl shaft, and a circuit for controlling the switching-on bending plate, the switching-off pawl and the switching-off pawl shaft, wherein the breaker also comprises a locking mechanism on the shell and a transmission mechanism acted with the locking mechanism; said locking mechanism is provided with a guide rod; the circuit is provided with a switch; the switch and the transmission mechanism are corresponding to the position of the guide rod; the transmission mechanism includes a first transmission mechanism which is correspondingly acted on the switching-off pawl shaft and is driven to rotate, and a second transmission mechanism whose tail end is provided with a locking piece; said locking piece has two mutually converted position states, one state is a first position that is separated from the switching-on bending plate and does not interacted with the switching-on bending plate, and the other state is a second position that is cooperated with the switching-on bending plate block chip and prevents the switching-on of the switching-on bending plate block chip. The breaker is controlled via a locking mechanism without misoperation.

Description

Technical field [0001] The invention relates to a circuit breaker, in particular to an indoor high-voltage vacuum circuit breaker. Background technique [0002] The indoor high-voltage vacuum circuit breaker is a circuit breaker whose contacts are opened and closed in a high vacuum bubble. The existing indoor high-voltage vacuum circuit breakers include the closing bending plate, the opening detent and the sub-axle of the opening detent, and the circuit that controls the closing deflection plate, the opening detent and the sub-axle of the opening detent can be manually or electrically operated. To make the opening detent and the sub-axle of the opening detent and the closing of the bending plate close, and then through the opening of the opening detent and the sub-axle to make the circuit breaker open, or close the bending plate to make The circuit breaker is closed. This circuit breaker has a shortcoming. In some special circumstances, such as bad weather, it is necessary to k...

AI Technical Summary

Problems solved by technology

This circuit breaker has a disadvantage. When some special circumstances, such as bad weather, need to keep the circuit breaker off, anyone can close the circuit breaker, even accidental non-human actions can close the switch. Therefore, it is easy to cause wrong closing, threatening people's lives and property safety.

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