Adjustable centrally installed switchgear grounding device and method for using same

Abstract

The invention relates to the technical field of high-voltage substation maintenance and in particular to an adjustable centrally installed switchgear grounding device and a method for using the same.The adjustable centrally installed switchgear grounding device comprises a baffle opening device, a ground wire device, a grounding device and an electroscope. The baffle opening device is installed on the slideway of a centrally installed switchgear bottom plate, tightens the mechanism pulley of the centrally installed switchgear and opens an isolation baffle. The head of the grounding device isa mechanical arm structure. The mechanical arm grasps a static contact in order to be connected to the same, and is connected to the ground wire device through a ground wire. The ground wire device isdetachably installed on the centrally installed switchgear bottom plate. The ground wire device is connected to the ground wire. The tail of the grounding device is connected to the electroscope. Without opening the back cover of the centrally installed switchgear, the direct power inspection and ground wire hanging can be realized, which is safe, convenient and fast, improves the operation efficiency and avoids potential safety hazards.

Description

technical field [0001] The invention relates to the technical field of high-voltage substation maintenance, in particular to an adjustable center cabinet grounding device and a method for using the same. Background technique [0002] With the increasing dependence of modern society on electric energy, areas with high electricity density have put forward higher requirements for the safety and reliability of electric energy supply, and then put forward higher and higher requirements for the reliability of power supply equipment. [0003] In the process of power operation, the power industry is an industry with highly concentrated production. In the process of development, the power industry has formed a set of safe and perfect management mode. It should strictly implement the power safety operation rules, and maintain the 220kV and 66kV substations. Safe working procedures should be implemented. [0004] At the present stage, the 10kV central cabinets in the 66kV substation a...

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Problems solved by technology

[0004] At the present stage, the 10kV central cabinets in the 66kV substation all use fully enclosed busbar equipment, and there are many safety hazards in the connection to the ground wire due to its structure:

[0005] 1) There are two types of grounding trucks with central cabinets, which are large and heavy and require two people to carry them. Because there is a baffle at the front end of the grounding truck, it is impossible to conduct an electrical test on the static contacts before closing the grounding truck. Hidden danger

[0006] 2) The existing grounding wire does not have the function of opening the isolation baffle, and it cannot be hooked to the static contact. The grounding wire can only be hung on the busbar by opening the back cover of the central cabinet, and the busbar is fully enclosed. Electricity testing cannot be performed before the grounding wire, which poses a safety hazard

[0007] 3) The existing grounding wires all use bolts to fix the grounding point on the middle cabinet box. There is a grounding error, and it is not connected to the grounding wire, which poses a safety hazard

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