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AC-DC electrical contact electricity life testing device and method

A test device, the technology of alternating and direct current, applied in the direction of circuit breaker testing, etc., can solve the problems of outdated control system, failure to meet the requirements of electric contact testing, and few testing functions, and achieve the effect of high automation program

Pending Publication Date: 2005-01-19
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned testing machine can only be used on power frequency AC loads. Since there is no DC load device, DC tests cannot be performed, which is far from satisfying the growing electrical contacts in the testing of DC electrical products such as signal communication and traffic electrical appliances. Require
The control system of the above-mentioned testing machine is also outdated and backward, and the testing functions are few, so it is necessary to research and develop new testing equipment and testing methods

Method used

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  • AC-DC electrical contact electricity life testing device and method
  • AC-DC electrical contact electricity life testing device and method
  • AC-DC electrical contact electricity life testing device and method

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Embodiment Construction

[0017] The following combination Figure 1 ~ Figure 4 The present invention will be further described, but the accompanying drawings do not constitute a

[0018] Invention Limitations.

[0019] refer to figure 1 , which is a schematic diagram of the circuit structure of the test device of the present invention. The AC / DC contact electric life test device includes a testing machine 1, an electronic control box 2, an AC / DC load impedance 3, a voltage regulating power supply 4, and a control circuit 9;

[0020] The connection between the above-mentioned circuit and the testing machine, wherein the relay control circuit in the electronic control box is connected with the AC-DC testing machine through the DC voltage regulating circuit and load impedance; the counting circuit in the electronic control box is connected through the time base circuit, the alarm circuit It is connected with the relay control circuit; the AC and DC testing machine is connected with the alarm circuit, ...

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Abstract

This invention relates to an experiment apparatus and method for ac / dc contacts life, which comprises a testing machine, an electron control box, a group of load impedance and power source, wherein, the voltage-controlled power source is connected with load impedance, and the load impedance is connected with ac / dc testing machine, and electron control box is to control the ac / dc testing machine. In normal conditions, the tested contact can record experiment times and record binding times of each circle. When in fusion welding, the test contact can cut off power and alarm and count within one to five seconds. The steps of the method are the following: contact material choosing and preparation; sample alignment steps; load impedance, power adjusting, wherein, sample alignment also comprises on / off speed adjusting, counting contact adjusting, closed-force adjusting and breaking force adjusting.

Description

technical field [0001] The invention relates to an AC / DC electric contact electric life test device and a test method thereof, belonging to the technical field of electric contact materials. Background technique [0002] For the detection of contact materials, the routine test items are: chemical composition, mechanical and physical properties. It cannot reflect the real operating performance and electrical properties of the contact material; if the type test is directly carried out on the electrical product to screen the material, the blindness is large, the test cost is high, and the test cycle is long. Therefore, at the end of the 1970s, Shanghai Electrical Appliance Science Research Institute and Guilin Electrical Appliance Science Research Institute jointly developed my country's first electric contact wear tester (CS-1 type), the test voltage is AC220V, current ≤ 50A, No DC load system. [0003] In the early 1990s, with the vigorous development of my country's car and...

Claims

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Application Information

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IPC IPC(8): G01R31/327
Inventor 赵建谷黄国强
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
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