A two-way propulsion isolating switch

Abstract

The invention provides a bidirectional-driving disconnector, comprising a first contact arm, a second contact arm and a driving mechanism, wherein the first contact arm is suitable to be connected with a first contact electrically; the second contact arm is suitable to be connected with a second contact electrically and has a second contact part; the first contact and the second contact are a pair of moving contact and fixed contact which are arranged oppositely; the driving mechanism is used for driving the first contact arm to move along the axial direction of the driving mechanism so as to enable the first contact part to be connected with or disconnected from an external circuit and also for driving the second contact arm to move along the axial direction of the driving mechanism so as to enable the second contact part to be connected with or disconnected from the external circuit. Compared with the prior art, the bidirectional-driving disconnector occupies less space, facilitates the miniaturization and compactness of equipment; since two obvious disconnection points occur when in a disconnected state, the bidirectional-driving disconnector, compared with a disconnector in the prior art, has the advantage of high safety performance.

Description

technical field [0001] The invention relates to the technical field of isolating switches for high-voltage vacuum circuit breakers, in particular to a bidirectional propulsion isolating switch. Background technique [0002] High-voltage vacuum circuit breakers are electrical equipment often used in high-voltage power distribution systems. They usually include a circuit breaker and an isolation switch. The function of the circuit breaker is to close the circuit and open the circuit, and it is used for closing The contacts that connect the circuit or open the circuit and disconnect the circuit are installed in the vacuum interrupter. When the contacts are closed or opened, arcs are not easy to occur, and the safety performance is very high. The function of the isolation knife switch is to establish a reliable insulation gap and separate the lines with an obvious disconnection point to ensure the safety of operators and equipment. When operating the vacuum circuit breaker to o...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of the isolation switch in the prior art, which occupy a large space and have poor safety, so as to provide a two-way propulsion isolation switch with a small footprint and good safety performance.

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