Indoor high voltage vacuum circuit breaker

Abstract

An indoor high voltage vacuum circuit breaker comprises a housing, a switching-on bent plate, a switching-off pawl, a switching-off pawl shaft, and a circuit for controlling the switching-on bent plate, the switching-off pawl and the switching-off pawl shaft, and further comprises a lock mechanism arranged inside the housing and a transmission mechanism acting on the lock mechanism, wherein the lock mechanism is provided with a guide rod; a switch is arranged inside the circuit; the switch and the transmission mechanism are corresponding to the guide rod in position; the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism correspondingly acts on the switching-off pawl shaft and can drive the switching-off pawl shaft to rotate; a locking component is arranged at the tail end of the second transmission mechanism; the locking component has two position states which can be switched to each other, namely, a first position at which the locking component is separated from and does not interact with the switching-on bent plate, and a second position at which the locking component is matched with a retaining card of the switching-on bent plate and stops the switching-on bent plate from switching on. The indoor high voltage vacuum circuit breaker can avoid maloperation through the control of the lock mechanism.

Description

[0001] The present invention is a divisional application with the application number 201110299281.1, the application date being September 29, 2011, and the name being "Indoor High Voltage Vacuum Circuit Breaker". technical field [0002] The invention relates to a circuit breaker, in particular to an indoor high-voltage vacuum circuit breaker. Background technique [0003] The indoor high-voltage vacuum circuit breaker is a circuit breaker in which the contacts are opened and closed in a high-vacuum bubble. Existing indoor high-voltage vacuum circuit breakers include a closing bent plate, an opening detent and an opening detent shaft, and the circuits for controlling the closing bent plate, opening detent and opening detent shaft can be operated manually or electrically. To make the opening detent and the opening detent shaft disengage and close the closing bent plate, and then the circuit breaker is disconnected through the opening detent and the opening detent shaft, or th...

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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