Interlocking mechanism of ZW32 type column switch isolation knife and switch mechanism

Abstract

The invention provides an interlocking mechanism of a ZW32 type column switch isolation knife and a switch mechanism. The interlocking mechanism comprises a mechanism interlocking plate, a limit shaft, a transmission link plate, a main shaft arm and a shaft sleeve. The mechanism interlocking plate is fixedly connected with a mechanism closing shaft and rotates synchronously with the mechanism closing shaft. The lower part of the main shaft arm is fixedly connected with an isolation knife brake main shaft. The upper part of the main shaft arm is hinged to one end of the transmission link plate.The other end of the transmission link plate is hinged to the right end of the limit shaft. The left end of the limit shaft can extend to the left to be engaged with the mechanism interlocking plate.The shaft sleeve sleeves the outer surface of the limit shaft and is fixedly connected with a circuit breaker casing. According to the invention, the interlocking mechanism of column switch isolationknife closing and the switch mechanism has a simple structure; the rotation of a circuit breaker closing shaft can be limited when the closing of an isolation knife brake is not in place; and switchburnout accidents caused by insufficient closing of the isolation knife brake and continued closing of a circuit breaker.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a pole-mounted switch interlocking mechanism. Background technique [0002] At present, the ZW32 column switch on the market has the problem of inaccurate and unstable mechanical interlock between the isolating knife and the circuit breaker. During the long-term outdoor use of the isolation knife switch, there is a problem that the manual opening and closing is not in place due to the failure of the lubrication of the transmission parts and the increase of the opening and closing resistance. Since the switch is suspended at a high position on the tower, it is difficult for the operator to find the problem in time. After the power is transmitted, the switch is burned, which affects the power supply of the grid users. [0003] In order to prevent the opening and closing of the isolation knife switch from not in place, the ZW32 column-mounted switch interlock mechanism is currentl...

AI Technical Summary

Problems solved by technology

[0004] Although the pole-mounted switch of this structure has the function of closing the switch and blocking the operation of the isolation knife switch, it lacks the protective measures for blocking the switch when the isolation knife switch is not in place.

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