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Characteristic test analysis system for alternating current contactor

A technology for AC contactor and characteristic testing, applied in circuit breaker testing and other directions, which can solve the problems of single signal and high price

Active Publication Date: 2013-04-03
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the measurement method using high-speed cameras and laser sensors is relatively expensive, and the test signal is single. In order to comprehensively analyze the characteristics of the contact system and core system of the AC contactor, a comprehensive analysis system must be established

Method used

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  • Characteristic test analysis system for alternating current contactor

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawings and implementation.

[0014] The AC contactor characteristic test and analysis system of the present invention is a test system integrating control, test and analysis, and has three main parts:

[0015] (1) AC contactor phase selection opening and closing control module: During the operation of the AC contactor, the closing phase angle of its electromagnetic mechanism directly leads to different dynamic characteristics of the electromagnetic mechanism, which causes different core collisions and contactors. Bouncing affects the electrical life and overall performance of the contactor. The opening phase angle of the electromagnetic mechanism is different during the opening process, which will cause the contact system to separate at different times of the main circuit current, resulting in different contact breaking arcs, contact If the device is working on AC4 heavy tasks, the ...

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Abstract

The invention relates to a characteristic test analysis system for an alternating current contactor. The characteristic test analysis system is characterized in that the characteristic test analysis system comprises an alternating current contactor characteristic test analysis platform, an electrical signal test analysis module and a non-electrical-signal test analysis module, the electrical signal test analysis module and the non-electrical-signal test analysis module are controlled by the alternating current contactor characteristic test analysis platform, the non-electrical-signal test analysis module acquires a contact terminal system voltage signal and an exciting coil voltage signal of the alternating current contactor through a voltage transformer test module, and the electrical signal test analysis module acquires a contact terminal system current signal and an exciting coil current signal of the alternating current contactor through a current transformer test module. According to the characteristic test analysis system for the alternating current contactor, an alternating current contactor phase selection switch-on-off control module is introduced to the entire test analysis system for the first time, the foundation is laid for comprehensive test for performance indexes and electrical life prediction of the alternating current contactor, the test of a sound sensor is introduced to the test system for the first time, a bounce test for an iron core and a contact terminal which are enclosed in an outer shell is achieved, and a test idea is provided for similar electromagnetic appliances.

Description

technical field [0001] The invention relates to the technical field of AC contactors, in particular to an AC contactor characteristic test and analysis system. Background technique [0002] AC contactors are a type of low-voltage electrical products with a large quantity and a wide range. How to further improve performance indicators and increase electrical life has become a research hotspot in recent years. With the development of sensing technology, virtual technology and computer technology, the measurement methods of low-voltage electrical appliances have been continuously improved, and the measurement accuracy has also been continuously improved. In particular, the application of virtual instrument (VI) technology has further improved the development efficiency of test systems and reduced system development costs. The action characteristics of the AC contactor can directly reflect the overall performance of the contactor. Testing the action time of the AC contactor, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
Inventor 许志红李庆杰
Owner FUZHOU UNIV
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