Handcart switch loop resistance test wiring device

A switch circuit and resistance testing technology, which is applied in the direction of measuring device, measuring device casing, measuring resistance/reactance/impedance, etc., can solve the problems that cannot truly reflect the circuit resistance of the handcart switch, and achieve comprehensive and accurate detection results Effect

Inactive Publication Date: 2020-06-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The invention provides a wiring device for testing the circuit resistance of the handcart switch, which is used to solve the problem that the circuit resistance of the handcart switch cannot be truly reflected

Method used

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  • Handcart switch loop resistance test wiring device
  • Handcart switch loop resistance test wiring device
  • Handcart switch loop resistance test wiring device

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0039] Such as Figure 1-4 As shown, a wiring device for testing the circuit resistance of a handcart switch includes: a body, an extrusion unit screwed to the body, and a conductive cone 6 screwed to the body.

[0040] The extruding unit is used to propel the body and the contact arm 14 together through the threaded connection with the inner surface of the body; the conductive cone 6 is used to propel the body through the threaded connection with the outer surface of the body. , the conductive cone 6 and the contact finger 15 are closely electrically connected together, the condu...

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Abstract

A handcart switch loop resistance test wiring device comprises a body, an extrusion unit in threaded connection with the body and a conductive cone in threaded connection with the body. According to the device, a screw drives a conical head to extrude an expansion head, the body is fixedly connected to a contact arm of a handcart switch, the conductive cone is in threaded connection with the body,a contact finger is extruded to remove an oxide layer on the surface of the contact finger, and the conductive cone has a relatively strong extrusion effect on the contact finger, so the contact resistance of the conductive cone and the contact finger is very small, and the detection result is accurate; and the access point of the device wiring is the contact finger, the switch loop resistance including the contact resistance of the contact finger and the contact arm can be detected, the fault including the contact resistance of the contact finger and the contact arm can be found, and the detection result is more comprehensive. The device can be matched with the shapes of various contact finger matching holes, so that the universality is good.

Description

technical field [0001] The invention relates to a wiring device for switch testing, in particular to a wiring device for testing the circuit resistance of a handcart switch. Background technique [0002] The handcart switch needs to measure the loop resistance regularly. At present, wiring pliers are usually used to connect the instrument and the measured equipment. However, due to the special structure of the moving contact of the handcart switch, it consists of several fingers, and the wiring pliers can only clamp one contact. Fingers, and all the fingers participate in conduction during operation, so the measured loop resistance cannot truly reflect the real loop resistance of the handcart switch. [0003] The operation and maintenance quality of the contact finger plays a pivotal role in the KYN switchgear. The common defects of the contact finger include deformation of the fastening spring, looseness, deformation of the contact piece, oxidation, deformation of the fixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02G01R1/04
CPCG01R1/0408G01R27/02
Inventor 刘晓飞胡伟涛刘海锋王绪付炜平马莉曾雨莲肖方勇王涛江鸿雁刘钊杨世博齐梦倩王晓华贾晓瑜
Owner STATE GRID CORP OF CHINA
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