Combined appliance of indoor high-voltage vacuum load switch and high-voltage fuse

Abstract

The invention relates to a combined appliance of an indoor high-voltage vacuum load switch and a high-voltage fuse, which comprises electrode posts 11, an operation mechanism 12, an isolating switch static contact base, an insulating cover 13 and a metal fixed frame 14. The combined appliance of the indoor high-voltage vacuum load switch and the high voltage fuse is characterized by being provided with an energy storage mechanism, a valve, an isolation and grounding linkage mechanism and a circuit breaker transmission mechanism. The combined appliance has the advantages of modularized mechanism, an energy storage maintenance function, high transmission accuracy, can realize functions of single-separation single-close or reclosing, and has the characteristics of breaking short-circuit current capability and being capable of realizing time sequence three-axis linkage and minisized layout of the valve, the isolation and the grounding, therefore, the invention provides the novel combinedappliance of the indoor high-voltage vacuum load switch and the high voltage fuse.

Description

1. Technical field [0001] The invention belongs to the technical field of high-voltage electrical equipment and devices, and relates to a protection device for a high-voltage power distribution system, in particular to a novel indoor high-voltage vacuum load switch-high-voltage fuse combination appliance. 2. Background technology [0002] At present, the vacuum circuit breaker configured in the traditional indoor switchgear is mainly composed of poles installed longitudinally at the front and rear, an operating mechanism, a static contact seat of a disconnector, an insulating cover, and a metal fixed frame. Its shortcoming is that the traditional four-link mechanism is scattered inside the body, which is not easy to maintain. The traditional load switch closes directly when the energy storage is completed, without the energy storage maintenance function, the closing process is slow, and it is impossible to close through the shunt coil. The traditional load switch usually ad...

AI Technical Summary

Problems solved by technology

The disadvantage is that the traditional four-bar linkage mechanism is scattered inside the body, which is not easy to maintain

The traditional load switch closes directly when the energy storage is completed, without the energy storage maintenance function, the closing process is slow, and it is impossible to close through the shunt coil

The traditional load switch usually adopts the main shaft to rotate, and realizes closing through three sets of crank arms. The transmission accuracy is low, the rigidity is small, and the synchronization is poor. It can only break the load current.

The traditional load switch cannot realize the sequential three-axis linkage of the valve, isolation, and grounding

And the traditional load switch has a large volume, which brings inconvenience to the installation

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