Electrical inspection grounding handcart and working method

Abstract

The invention relates to an electrical inspection grounding handcart and a working method, and belongs to check-out equipment of electric appliances. The technical scheme adopted by the invention is described as follows: the electrical inspection grounding handcart comprises a self-help movable chassis and is also provided with a three-phase moving contact capable of moving up and down, wherein the three-phase moving contact is arranged on the front end of a moving contact base; the rear part of the moving contact base is arranged on a lifting device; the lifting device is arranged on a vertical vehicle frame; a grounding static contact conductively connected with each phase of the three-phase moving contact is arranged below the moving contact base; a pendulant grounding knife-switch is arranged below the grounding static contact; an extension end of a linear motor is connected at the front end of the grounding knife-switch; the vehicle frame is articulated with the rear end of the linear motor; the extension end of the linear motor moves to drive the grounding knife-switch to upswing and be connected and electrified with each phase of the grounding static contact; the grounding knife-switch is connected with a grounding line.

Description

technical field [0001] The invention relates to an electric testing grounding handcart and a working method, which belong to electrical testing equipment. Background technique [0002] At present, metal-clad high-voltage switchgear is widely used in electric power enterprises to play the role of on-off, control and protection in the power system. In a typical design of a substation, there are usually two "incoming switch cabinets" and several "outgoing switch cabinets" in the high-voltage room, as well as "bus tie switch cabinets" and other switch cabinets with other functions. [0003] Switchgear manufacturers generally electrically connect the busbars in the switchgear to the upper static contacts in the circuit breaker rooms of the "incoming switchgear" and each "outgoing switchgear" during design. Therefore, ① if the busbar in the switch cabinet needs to be grounded during maintenance work, it is necessary to use a special "grounding handcart" provided by the manufactur...

AI Technical Summary

Problems solved by technology

[0005] The invention relates to a grounding handcart for electric inspection and a method for carrying out high-voltage electric inspection, which solves the problem of live detection of contact points during the maintenance process of high-voltage switch cabinets,

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