Closing interlock device for circuit breaker operating mechanism

Abstract

The invention relates to a switching-on interlocking device of a circuit breaker operating mechanism, belonging to the technical field of high-voltage switches. The switching-on interlocking device of the circuit breaker operating mechanism comprises an interlocking plate and two connecting rods, wherein the interlocking plate is arranged below an output shaft of a circuit breaker operating mechanism and can rotate around a mounting shaft located in the middle of the interlocking plate; the right end of the interlocking plate is close to a switching-on lever and is shaped like a circular arc; one end of each of the two connecting rods is rotationally connected with the right end of the interlocking plate, and the other end of each of the two connecting rods is fixedly connected with the front end of the output shaft, so that the two connecting rods are bent to form a certain angle. After the switching-on interlocking device is used, the rotation of the switching-on lever can be limited when the circuit breaker operating mechanism is in a switching-on state, and furthermore misoperation is avoided; and meanwhile, by virtue of the interlocking plate of an eccentric structure, the interlocking plate can easily push the switching-on lever to rapidly reset, and the condition that the interlocking plate is damaged because the top of the switching-on lever is knocked when the interlocking plate is downwards pressed can be avoided, so that the maintenance rate of the interlocking plate is reduced.

Description

technical field [0001] The invention relates to the field of high-voltage switches, in particular to a closing interlocking device of a circuit breaker operating mechanism. Background technique [0002] At present, the safety of electricity consumption involves the safety of the power grid and the safety of human life. A power transmission and distribution accident directly brings economic losses and huge social impact, especially in high-voltage power transmission and distribution. With the continuous increase of power consumption, The contradiction of power consumption is becoming more and more prominent, ensuring the safety of power consumption involves the integrity and reliability of equipment, so the equipment is required to be fully functional. According to the requirements of high-voltage circuit breakers and the current use of circuit breakers, there are generally insufficient closing interlocks. [0003] At present, when some circuit breakers are in the closing ope...

AI Technical Summary

Problems solved by technology

[0002] At present, the safety of electricity consumption involves the safety of the power grid and the safety of human life. A power transmission and distribution accident directly brings economic losses and huge social impact, especially in high-voltage power transmission and distribution. With the continuous increase of power consumption, The contradiction of power consumption is becoming more and more prominent, and ensuring the safety of power consumption involves the integrity and reliability of equipment, so the equipment is required to be fully functional. According to the requirements of high-voltage circuit breakers and the current use of circuit breakers, there is generally a lack of closing and interlocking

[0003] At present, when some circuit breakers are in the closing operation, the closing interlocking device is not safe enough, and sometimes it is easy to misoperate, which brings hidden dangers to the safety of power supply and easily causes various accidents; There is a closing interlock device, but due to structural defects, the repair rate is high and the maintenance cost is high

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