Lock cylinder software type anti-misoperation mechanism for five-prevention 10kV switching cabinet

Abstract

The invention discloses a lock cylinder software type anti-misoperation mechanism for a five-prevention 10kV switching cabinet, which comprises a disconnecting link, a switch, an interlocking mechanism, a first intelligent lock, a switching off magnet, a switching on magnetic and a first dry reed relay which are arranged on the cabinet body of the switching cabinet, wherein the disconnecting link comprises an interlocking plate, each intelligent lock comprises an electronic key and an electronic lock cylinder which correspond to each other, a switching on limit groove and a switching off limit groove are arranged on the interlocking plate, a limit rod is fixed on the side surface of the electronic lock cylinder of the first intelligent lock, and the first intelligent lock is provided with a first triggering end; the first dry reed relay is capable of attracting with the switching off magnet or the switching on magnet; one end of the spring switch of the first dry reed spring is grounded, and the other end of the spring switch of the first dry reed spring is connected with the first triggering end; the limit rod limits the rotation of the interlocking plate, and the switching off magnet or the switching on magnet attracts the spring switch of the first dry reed relay, and a switching off or on signal of the spring switch is fed back to the electronic lock cylinder of the first intelligent lock through the first triggering end. The lock cylinder software type anti-misoperation mechanism for the five-prevention 10kV switching cabinet is capable of preventing the disconnecting link anti-misoperation of the switching cabinet, and realizes five-prevention of the switching cabinet.

Description

technical field [0001] The invention relates to a 10kV switchgear in an electric power system, in particular to a lock cylinder software-type anti-misoperation mechanism for a five-proof 10kV switchgear. Background technique [0002] The 10kV switchgear (referred to as switchgear) in the power system includes a knife switch (Isolator, isolation switch) and a switch (Circuit Breaker, circuit breaker) connected between the 10kV busbar and the output terminal. Both the knife switch and the switch are installed in the switchgear inside the cabinet. The knife switch of the general switch cabinet is used as an isolating switch, which includes a locking plate and a handle. Turning the handle can drive the locking plate to rotate to realize the opening and closing of the knife switch; the switch of the general switch cabinet is equipped with an indicator switch installed on the switch cabinet body. Open or closed switch position indicator, the switch position indicator has a switch...

AI Technical Summary

Problems solved by technology

However, the existing anti-misoperation mechanism of switchgear mainly has the following defects: (1) The system and execution system used for electrical intelligence (including computer) control are too mixed, such as connecting a large number of auxiliary contacts of primary equipment in series in the control circuit, If there is a problem in one link in the series circuit, the entire locking circuit will be paralyzed; (2) The locking mechanism (including electrical) is not resistant to shelving, and it is easy to fail when it is left for a long time

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