On-pole permanent magnet vacuum breaker with manual switching-on and switching-off device

Abstract

The invention discloses an on-pole permanent magnet vacuum breaker with a manual switching-on and switching-off device. The on-pole permanent magnet vacuum breaker with the manual switching-on and switching-off device comprises three vacuum arc extinguish chambers, the vacuum arc extinguish chambers are connected with a connection rod part through contact springs, the positions, between the middle vacuum arc extinguish chamber and the adjacent vacuum arc extinguish chambers, of the connection rod part are provided with switching-off springs and a connecting lever respectively, the middle of the connecting lever is provided with a shaft, one end of the connecting lever is connected with the connection rod part, and the other end of the connecting lever is connected with a permanent magnet mechanism. The on-pole permanent magnet vacuum breaker with the manual switching-on and switching-off device is characterized in that the position, between the switching-off springs and the middle vacuum arc extinguish chamber, of the connection rod part is provided with the manual switching-on and switching-off device, and the manual switching-on and switching-off device can manually drive the connection rod part to move under the condition of not depending on the permanent magnet mechanism. The manual switching-on and switching-off device is additionally arranged in the on-pole permanent magnet vacuum breaker and is located inside a box of the breaker, energy is obtained manually and is applied on a drive pull rod through force conversion, and the switching-on energy is provided. The on-pole permanent magnet vacuum breaker with the manual switching-on and switching-off device achieves emergency manual switching-off and switching-on operations, the structure is simple, few parts are needed, few fault points exist, and reliability is high.

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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