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A handcart type circuit breaker circuit resistance test device and its use method

A technology of loop resistance and testing equipment, which is applied in the direction of measuring equipment, measuring resistance/reactance/impedance, instruments, etc., and can solve the problems of test result influence, poor contact condition, easy falling off, etc.

Active Publication Date: 2019-06-18
SHENZHEN POWER SUPPLY BUREAU +1
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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 handcart type circuit breaker circuit resistance test device and its use method
  • A handcart type circuit breaker circuit resistance test device and its use method
  • A handcart type circuit breaker circuit resistance test device and its use method

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Embodiment Construction

[0044] 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.

[0045] Such as 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 .

[0046] 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 affec...

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Abstract

The invention discloses a loop resistance testing device of a handcart type circuit breaker. The loop resistance measuring device comprises a main body provided with a clamping device and a contact device. The clamping device is used for fixing the testing device at a cross rod of a moving contact of a circuit breaker; and the contact device is used for realizing god contact between a loop resistor tester and a conductive rod of the moving contact of the circuit breaker. The contact device is pushed by a motor; and with a brush, an oxidation layer is polished to realize a good contact effect. The clamp rod of the clamping device is designed to be a telescopic rod and contact rods of the contact device are opened or closed by an adjusting block. The testing device is suitable for various circuit breakers.

Description

technical field [0001] The invention relates to the field of electric equipment detection, in particular to a circuit resistance testing device and a use method of a handcart-type circuit breaker. 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 ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
CPCG01R27/02
Inventor 李世明
Owner SHENZHEN POWER SUPPLY BUREAU