An operating mechanism for a circuit breaker

Abstract

The invention discloses an operating mechanism of a disconnector. The operating mechanism of the disconnector comprises a pair of side plates arranged face-to-face, an energy storage part and a divide-shut brake part. The energy storage part is arranged between the pair of the side plates in a pivot revolving mode. The divide-shut brake part is arranged between the pair of the side plates in a revolving mode. The energy storage part comprises an energy storage spring used for storing energy. The divide-shut brake part comprises a closing separating brake action mechanism, a closing separating brake interlocking mechanism and a tripping mechanism. The tripping mechanism is a three-level unlocking mechanism and comprises a closing brake tripping half shaft, a separating brake tripping half shaft, a closing brake tripping plate, a separating brake tripping plate, a first linkage rod, a second linkage rod, a third linkage rod, a large tripping half shaft, a large tripping plate, an untripping rotor and a locking piece. A whole modularization structure design is adopted and degree of a module is high. The module comprises operating functions of the closing brake, the separating brake and energy storage. The operating functions of the closing brake, the separating brake and energy storage required by the disconnector can be carried out and completed. The operating mechanism of the disconnector is compact in structure. Size of the operating mechanism of the disconnector is only one thirds of a traditional disconnector operating mechanism.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker operating mechanism structure. Background technique [0002] With the continuous development and maturity of vacuum arc extinguishing technology, the application of vacuum circuit breakers in the field of medium and high voltage power transmission and distribution switches is also becoming more and more extensive. After integrating the epoxy resin casting technology, the developed epoxy casting pole has extremely high performance and reliability, and can be maintenance-free for life, realizing the modularization of the main circuit of the vacuum circuit breaker, reducing installation, Maintenance, replacement operation workload and time. According to industry statistics, it is the reliability of the operating mechanism of the circuit breaker that restricts the service life and reliability of the circuit breaker. At present, the spring operating mecha...

AI Technical Summary

Problems solved by technology

Due to the large size and large space occupied by the existing vacuum circuit breaker operating mechanism, it is impossible to provide installation space for intelligent components. Therefore, it is impossible to upgrade the existing circuit breaker to an intelligent circuit breaker.

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