Electrical inspection grounding handcart and working method

Abstract

The invention relates to an electric testing grounding handcart and a working method, which belong to electrical testing equipment. The technical solution adopted in the present invention is: the electric inspection grounding handcart, including a self-service movable chassis car, is also provided with a three-phase movable contact that can move up and down, and the three-phase movable contact is arranged on the front end of the movable contact seat, and the movable contact The rear part of the contact seat is set on the lifting device, and the lifting device is set on the vertical vehicle frame. The grounding static contact connected with each phase of the three-phase moving contact is provided under the moving contact seat; the grounding static contact There is a swinging grounding switch at the bottom. The front end of the grounding switch is connected to the extended end of a linear motor, and the rear end of the linear motor is hinged to the frame. The movement of the extended end of the linear motor drives the grounding switch to swing upwards and connect with the grounding static contact every phase. Connected and energized; the grounding switch is connected to the 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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