Circuit breaker grounding switch integrated operating mechanism

Abstract

The invention relates to an earthing switch integrated operating mechanism for a circuit breaker. The earthing switch integrated operating mechanism comprises an energy storage unit, a circuit breaker transmission unit, an earthing switch transmission unit, a switching on-off locking unit, a switching on-off tripping unit, an interlocking unit and a support unit; the energy storage unit comprises a manual energy storage unit, an electric energy storage unit and an energy storage spring; an electric energy storage system comprises an energy storage motor and an energy storage travel switch; the circuit breaker and the earthing switch transmission unit comprise two sets of cams, four-bar mechanisms and output crank arms, which are independent respectively; the switching on-off locking unit comprises a switching-in half shaft and an earthing switch switching-off half shaft which are shared by the circuit breaker and an earthing switch; the tripping unit comprises a switching-in coil, a circuit breaker switching-in button, an earthing switch switching-in button, a circuit breaker switching-off button and an earthing switch switching-off button which are shared by a switching on-off brake and the earthing switch; the mechanical interlocking unit comprises an interlocking shifting piece and an interlocking spring. According to the earthing switch integrated operating mechanism disclosed by the invention, the product reliability is improved, and human accidents of operation personnel are reduced.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a switch operating mechanism applied to electric equipment. Background technique [0002] At present, the operating mechanism of the solid insulated ring network cabinet in the market is the circuit breaker operating mechanism and the grounding switch operating mechanism to respectively realize the closing and opening of the circuit breaker and the grounding switch. The two operating mechanisms are installed and used independently, which requires two sets of energy storage systems. , The number of supporting parts is also greatly increased, resulting in an increase in manufacturing costs and assembly labor, the weight of the two operating mechanisms is increased, and the volume is also larger; on the other hand, according to the relevant national standards, it is necessary to place An interlocking unit is formed between them for interlocking control to prevent man-made accidents...

AI Technical Summary

Problems solved by technology

[0002] At present, the operating mechanism of the solid insulated ring network cabinet in the market is the circuit breaker operating mechanism and the grounding switch operating mechanism to respectively realize the closing and opening of the circuit breaker and the grounding switch. The two operating mechanisms are installed and used independently, which requires two sets of energy storage systems. , The number of supporting parts is also greatly increased, resulting in an increase in manufacturing costs and assembly labor, the weight of the two operating mechanisms is increased, and the volume is also larger; on the other hand, according to the relevant national standards, it is required An interlocking unit is formed between them to carry out interlocking control to prevent the occurrence of man-made accidents caused by workers' misuse. However, when the circuit breaker operating mechanism and the grounding switch operating mechanism are used respectively, mechanical interlocking must be done between the two independent operating mechanisms to form an interlocking Lock unit, the number of interlock unit parts is more unreliable

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