Switch-cabinet operation tool set

Abstract

The invention discloses a switch-cabinet operation tool set. The switch-cabinet operation tool set comprises a universal handle and a plurality of joints for operating a switch cabinet; a handle body,a stretchable part, a swinging transition piece and a joint inserting opening are sequentially arranged in the axial direction of the universal handle; the stretchable part is connected with the swinging transition piece through a first pin shaft; the swinging transition piece is connected with the joint inserting opening through a second pin shaft, and the first pin shaft is orthogonal with thesecond pin shaft; the joint inserting opening can be detachably connected with any joint. The switch-cabinet operation tool set has the advantages that the universality and the practicability are high, operation is convenient, and occurrence of the crank-wrongly-taking phenomenon and the handle-taking-off phenomenon in the using process in the prior art can be avoided.

Description

technical field [0001] The invention relates to a switchgear operation complete set of tools. Background technique [0002] Statistics are made on the problems existing in the operation process of 35kV, 10kV, and 400V switchgear handcarts, isolating switches, and grounding knife switches in the manual operation process, and the following common problems exist. [0003] Problem 1: There are many types of crank handles, and many tools and tools are required to be carried during operation. Wrong crank handles often appear, resulting in increased switching operation time. [0004] Problem 2: The structural design of some high-voltage switchgear handcarts is unreasonable, and the distance between the operating hole of the crank handle and the ground is too short, which is not convenient for the operation and maintenance personnel to operate on site. For example, in the 35kV ZS 3.2 armored metal fully enclosed high-voltage switchgear produced by ABB Electric Company, the distance...

AI Technical Summary

Problems solved by technology

[0003] Problem 1: There are many types of crank handles, and many tools and tools are required to be carried during operation. The phenomenon of carrying wrong crank handles often occurs, resulting in increased switching operation time

[0004] Problem 2: The structural design of some high-voltage switchgear handcarts is unreasonable, and the distance between the operating hole of the crank handle and the ground is too short, which is not convenient for the operation and maintenance personnel to operate on site

For example, in the 35kV ZS 3.2 armored metal fully enclosed high-voltage switchgear produced by ABB Electric Company, the distance between the handcart operation hole and the ground is only 32cm, which is very inconvenient for the operation and maintenance personnel to operate on site.

[0005] Problem 3: Most of the crank handles used in the current substation are of "Z" shape structure. In actual operation, the force point of the crank handle rotation is not on the same axis, and problems such as shaking and deflection of the crank handle often occur, resulting in "off the handle" during operation. ", if this "off handle" situation occurs when the moving and static contacts of the handcart just contact or separate, it may cause long-term discharge between the moving and static contacts, shortening the service life of electrical equipment

[0006] Problem 4: When using the current crank for switching operation, it often happens that the friction between the insulating gloves and the crank is too large, causing the gloves and the crank to be entangled

[0007] A comprehensive analysis of the above four problems shows that the manual crank handles of switch cabinets currently used have problems such as unreasonable "Z" shape design, "off handle", entanglement of insulating gloves, and poor versatility, which seriously affect the safety of on-site operations and reduce Therefore, it is necessary to improve the hand crank and develop a new set of switch cabinet operation tools

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