Breaker operating characteristic test apparatus

Abstract

The invention relates to a low-voltage circuit breaker operating characteristic test equipment, comprising a power loop part, a thyristor trigger control circuit, an input / output signal sampling and processing part, a switch power part and a main chip. The electric signal transitive relation is that the thyristor trigger control circuit triggers a thyristor, transmits the signal to an input signal collecting circuit and the signal is transmitted to the power loop after the signal is processed by the main chip. The equipment in which the power loop adopting the thyristor is characteristics of low cost, high control precision, short response time and strong reliability, the trigger controlling of the thyristor applies the way that an independent signal generating source is combined with CPLD, therefore, the trigger is more reliable, the response is more correct and the allocation is more convenient, thus meeting the requirement that various defined characteristics testing functions of the breaker can be realized by simple online allocation on the identical equipment. A field bus communication interface is integrated in the equipment, therefore, the system network can be accessed conveniently, remote control and diagnosis are facilitated, and the operation is more flexible due to a plurality of control ways.

Description

[0001] Field [0002] The invention relates to a circuit breaker action characteristic test equipment in the low-voltage electrical appliance detection industry, and belongs to the technical field of low-voltage electrical appliance detection. Background technique [0003] With the development of the times, the detection methods in the field of low-voltage electrical appliances in my country have obviously lagged behind foreign standards, becoming a bottleneck in the development of intelligent electrical products and restricting the technological progress of the entire industry. [0004] There are many drawbacks in the application of traditional contact mechanical switches in the detection industry. With the continuous update of new standards, it has increasingly shown its limitations: it cannot achieve fast response and accurate control of the on-phase angle, and cannot To realize the control of subsequent output waveforms, the accuracy of time control cannot be solved, the c...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose a circuit breaker action characteristic test equipment, the test equipment is aimed at the characteristics of the electric life test of the contactor in the low-voltage electrical appliance detection industry, and a non-contact test equipment is designed by using thyristor technology and single-chip microcomputer control. In order to realize various functions required for testing the characteristics of the circuit breaker, it greatly reduces the cost required for the test, and solves the problems of arcing, low work efficiency, and loud noise when the contactor is broken.

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