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A kind of circuit resistance testing method

A technology of loop resistance and test method, applied in the direction of measuring resistance/reactance/impedance, parts of electrical measuring instruments, measuring devices, etc., can solve problems such as easy falling off, ineffective contact formation, and poor contact conditions

Active Publication Date: 2019-07-12
高原(山东)机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latter two devices are plugged into the moving contact, but there is no fixing device. Through simple plugging, it is easy to fall off during the test, and the contact condition after installation is not good, and the contact cannot be effectively formed, which will cause serious damage to the test results. Serious impact

Method used

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  • A kind of circuit resistance testing method
  • A kind of circuit resistance testing method
  • A kind of circuit resistance testing method

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Embodiment Construction

[0040] In order to make the technical solutions and beneficial effects of the present invention clearer, the implementation manners of the present invention will be further explained in detail below.

[0041] like figure 1 and figure 2 As shown, a handcart-type circuit breaker circuit resistance testing device includes a main body 1. In order to enable the device to be fixed on the moving contact of the circuit breaker, a clamping device is provided outside the main body 1. At the same time, it will be used for electrical The connected contact means are installed inside the main body 1 .

[0042] The function of the contact device is to connect with the moving contact of the circuit breaker. The moving contact of the circuit breaker is composed of a conductive rod and a contact finger, and the contact finger is connected to the outer end of the conductive rod. In reality, a wire gripper is often used to clamp the contact finger, but the effect is not good and will affect t...

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Abstract

The invention discloses a loop resistance testing method and a testing device adopted by the method. The testing device, a handcart type breaker loop resistance testing device, comprises a main body, which is provided with a clamping apparatus and a contact apparatus. Firstly, the clamping apparatus is utilized to fix the whole device on a moving contact of a breaker; secondly, the contact apparatus is pushed into a pore of a conductive rod of the moving contact of the breaker; and thirdly, a loop resistance tester is connected to complete a test. The method greatly improves the efficiency of connection between the loop resistance tester and the breaker, and also greatly improves the loop resistance testing accuracy.

Description

technical field [0001] The invention relates to the field of electric equipment detection, in particular to a loop resistance testing method. Background technique [0002] With the prosperity and development of the national economy, the living standards of the people continue to improve, and the power consumption gradually increases. In order to meet the demand for electricity, the State Grid gradually increases investment in power grid construction. The 10kV and 35kV voltage level handcart circuit breakers have been obtained Widely used, as a routine test item of the circuit breaker, the loop resistance value can directly reflect the installation quality of the circuit breaker and whether it will generate unacceptable heat when a short circuit occurs. [0003] Measuring the resistance of the conductive loop is an important test item for circuit breakers. Most of the 10kV and 35kV circuit breakers used in substations are handcart type, and their moving contacts are composed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02G01R1/04
CPCG01R1/0416G01R1/0425G01R27/02
Inventor 李世明
Owner 高原(山东)机电设备有限公司