Spring energy storage mechanism for vacuum load switch

Abstract

The invention discloses a spring energy storage mechanism for a vacuum load switch. According to the spring energy storage mechanism for the vacuum load switch, the capability of resisting an electric impact force of a dynamic thermal stable current of the switch in the case of a short-circuit current in the switching-on operating process is greatly improved and meanwhile, the breakage factors that a vacuum arc extinguish chamber is burnt out by a large current or devices are damaged by a shaking force and the like are avoided. A switching-off tripping part of a switching mechanism is flexible and reliable, parts are simply matched and connected, the switching-on and switching-off time of the switch is shortened, the breaking performance of the switch is ensured stable, and the switch is maintenance-free. The energy storage mechanism has various advantages that the energy storage mechanism is simple, convenient and flexible to produce and assemble and has short assembling hours, stable quality, high technical content, strong practicality and the like. The assembly of production parts of a complete machine is modularized. The spring energy storage mechanism is structurally optimized as further as possible. The parts are reduced. The part design is optimized. The part purchasing cost is reduced. The production efficacy is improved. The production cost is reduced. The spring energy storage mechanism is ensured to be strongly approved and used by market users.

Description

technical field [0001] The invention relates to a power system device, in particular to a spring energy storage mechanism for a vacuum load switch. Background technique [0002] The vacuum load switch is usually divided into three parts, including the isolation switch part, the vacuum inner cavity part, the fuse and the grounding switch part. As an indoor AC vacuum load switch with high and low breaking capacity, it is suitable for the switching element of the ring network power supply or terminal power supply in power distribution systems such as industrial and mining, enterprises, residential quarters, and schools. [0003] At present, the traditional medium-voltage AC vacuum load switch or combined electrical switch mechanism has always used the structural principle of the compressed air load switch, and copied the mechanism to the vacuum load switch. It can achieve the action principle of closing and opening. After the switch is closed, there is no reliable locking par...

AI Technical Summary

Problems solved by technology

Switch assembly is difficult, there are many parts, there are many structural problems, and assembly is difficult, resulting in many difficulties such as maintenance and debugging.

Especially after the switch mechanism is reinstalled, its characteristic parameters change greatly, and the performance is extremely unstable, such as technical shortcomings and other major problems.

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