A performance testing device for a contactor

Abstract

The invention discloses a contactor performance detection device. The contactor performance detection device comprises a single-chip microcomputer, a control touch screen, an automatic voltage regulation circuit, a contact on-off signal acquisition circuit, and a constant flow source circuit. The single-chip microcomputer can be used to control and coordinate other function modules. The control touch screen can be used to acquire various voltage signals and various current signals, and can be used to control the motion of relays having various functions. The single-chip microcomputer can be connected with a computer, and can be used for the transmission of the testing data, and then the testing data can be stored in the computer, and the testing reports can be printed. The touch screen is used for displaying different data, and at the same time, the user can set the parameters and carry out the operations of using the functions of the buttons by the touch screen. The automatic voltage regulation circuit is used to realize the automatic voltage regulation function and the switching function of the AC power supply and the DC power supply of the device. The contact on-off signal acquisition circuit can be used to detect whether the contact is switched on. The constant flow source circuit can be used to detect the contact resistance value of the contact. The contactor performance detection device is advantageous in that a lot of measuring functions are provided, the measuring way is simple; the automatic testing can be realized, and the testing results can be stored and printed, and the communication with the host computer can be realized.

Description

technical field [0001] The invention relates to a performance detection device of a contactor, in particular to a detection device for contactor on-off test, coil voltage fluctuation test, contact resistance value measurement and other tests of the contactor used in rail transit when it is overhauled. . Background technique [0002] Conventional contactor on-off test, coil voltage fluctuation test, and contact resistance value measurement of contacts are all different tests. It is necessary to replace different equipment and re-wiring, so it is impossible to perform a quick test. The data of 3 tests in the same test cannot be automatically integrated together. Contents of the invention [0003] The purpose of the present invention is to produce a targeted contactor performance for the contactor on-off test, coil voltage fluctuation test, and contact resistance value measurement that must be carried out when the contactor used in rail transit is overhauled. The detection ...

AI Technical Summary

Problems solved by technology

[0002] Routine contactor on-off test, coil voltage fluctuation test, and contact resistance value measurement of contacts are all different tests. It is necessary to replace different equipment and re-wiring, so it is impossible to perform a quick test

The data of 3 tests in the same test cannot be automatically integrated together

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