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A method and device for testing insulating materials based on radiation source

A technology for insulating materials and testing devices, applied in the direction of measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc.

Active Publication Date: 2017-09-01
SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiencies of existing methods for detecting the influence of insulating materials on electrical contact performance, the purpose of the present invention is to provide a standardized test method and device for the influence of insulating materials on electrical contact performance, using standard radiation sources to simulate electrical contact performance in real environments. Sparks, and measure the contact resistance value of the electrical contact surface under different insulating materials by the four-terminal method, analyze the influence of insulating materials on electrical contact performance, in order to realize the selection of insulating materials

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  • A method and device for testing insulating materials based on radiation source

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Embodiment 1

[0033] like figure 1 As shown, the present embodiment provides a test device for insulating materials based on the radiation source method, in the figure: insulating material 1, moving contact 3 and static contact 4 as the object to be tested, and a fixed contact for fixing the moving and static contacts The fixed bracket 5 of the head, said device comprises:

[0034] Radiation source 2 for simulating electric sparks in a real environment;

[0035] A servo motor system for controlling the movement of the moving contact, including a servo motor 8, a cam transmission device 7, and a spring rod 6;

[0036] Control components for servo motors, such as servo motor controllers;

[0037] A contact resistance measurement circuit 9 for measuring contact resistance;

[0038] MCU controller 10 for the whole device; wherein:

[0039] The MCU controller 10 sends a signal to the servo motor controller to control the motion time, speed and direction of the servo motor. The MCU controller...

Embodiment 2

[0048] The present embodiment provides a method for testing a testing device based on a radiation source method for an insulating material, the method comprising the following steps:

[0049] ①Develop a closed test box to ensure a constant temperature environment for the test.

[0050] ②Use the servo motor to control the moving speed and direction of the moving contact, and set the moving direction and speed of the servo motor through the MCU controller to drive the moving contact, so as to achieve the purpose of opening and closing the moving and static contacts. In the MCU controller, set the contact frequency of the contact material, the corresponding relationship between the dial switch number and the insulating material;

[0051] ③Set the amplitude of the radiation source, the constant temperature environment, and start the test; the radiation source is used to simulate the electric spark generated by electrical contact in the real environment, and it works in the entire te...

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Abstract

The invention discloses a method and a device for testing an insulating material based on a radiation source mode. The method comprises the following steps: simulating electric spark of a contact by using a standard radiation source; controlling the contact frequency of the electric contact and the testing frequency of contact resistance by using an MCU; testing the contact resistance of the electric contact by using a four-probe method, removing noise by using an amplification filtering plate so as to obtain a contact resistance value, and calling a fault detection algorithm in the MCU, thereby judging the influence of the insulating material on the electric property of the electric contact. According to the method and the device, the standard radiation source is adopted to simulate electric spark, the influence of the insulating material on the electric property of the electric contact is judged according to the resistance change of the contact resistance of the electric contact, different influence factors can be standardized, and option of the insulating material can be made. The detection conditions of the method and the device are objective and standard, and the detection result can be repeated and is high in reliability.

Description

technical field [0001] The invention relates to the field of testing insulating materials, in particular to a method and device for testing the influence of insulating materials on electrical contact performance based on radiation sources. Background technique [0002] The rapid development of the electric power industry has brought many conveniences to other industries, but the frequent occurrence of electrical fire accidents has also brought great losses and inconvenience to the production of enterprises and the lives of residents. Electrical lines and electrical equipment, after a long period of overload operation or poor electrical connections, lead to aging, damage and poor contact of the insulation layer, which may cause electrical accidents. The reliability of insulating materials is an important basis for the safe and stable operation of electrical equipment. Therefore, it is of great significance to test and evaluate the influence of insulating materials on electric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
Inventor 陈乐生叶连慧裘揆
Owner SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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