A pole-mounted permanent magnet vacuum circuit breaker with a manual opening and closing device

Abstract

The invention discloses a pole-mounted permanent magnet vacuum circuit breaker with a manual opening and closing device. The connecting rod part between the adjacent vacuum interrupter is respectively provided with a gate opening spring and a crank arm, and a shaft is provided in the middle of the crank arm. One end of the crank arm is connected to the connecting rod part, and the other end is connected to the permanent magnet mechanism. That is, a manual opening and closing device is provided on the connecting rod part between the opening spring and the intermediate vacuum interrupter, and the manual opening and closing device can manually drive the connecting rod without relying on the permanent magnet mechanism Part exercise. In the present invention, a set of manual opening and closing device is added to the permanent magnet circuit breaker on the pole. The manual opening and closing device is located in the circuit breaker box, and the energy is obtained by manual force, and then it acts on the driving rod through the conversion of force. On, provide closing energy. The invention realizes emergency manual opening and closing operation, has simple structure, few parts, few fault points and high reliability.

Description

technical field [0001] The invention relates to a pole-mounted permanent magnet vacuum circuit breaker with a manual opening and closing device, belonging to the field of power transmission and distribution components. Background technique [0002] In addition to using the intelligent controller to control the opening and closing of the pole-mounted permanent magnet circuit breaker, it also needs to have an emergency manual opening and closing function in structure to meet the needs of manual and intelligent dual control. [0003] Due to the structural limitation of the monostable permanent magnet mechanism, the traditional pole-mounted permanent magnet circuit breaker does not have the function of manual closing. The closing of the pole-mounted permanent magnet circuit breaker can only be realized by the controller discharging the coil in the permanent magnet mechanism. . This design defect has the following problems in the production and actual use of the permanent magnet...

AI Technical Summary

Problems solved by technology

[0004] a. The permanent magnet circuit breaker on the pole must be equipped with a controller or corresponding tooling during production and debugging, otherwise the closing operation cannot be performed;

[0005] b. In actual use, if the controller is damaged, the permanent magnet circuit breaker on the pole will not be able to close the emergency power supply once it is opened, resulting in continuous power outages in the area

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