Mechanical endurance test instrument for high voltage switch

Abstract

The invention relates to a high voltage switch mechanical service-life tester which comprises a casing and an internal control circuit thereof. The control circuit is composed of a power-supply input control circuit, a protective circuit, an automatic test control circuit and a manual test control circuit. An input terminal of the power-supply input control circuit is connected with an AC power-supply input port on the casing and an output terminal thereof is respectively connected with the protective circuit and the manual test control circuit; the protective circuit is connected with the automatic test circuit; the automatic test circuit and the manual test circuit are simultaneously connected with a test terminal and a counting display device on the casing; the counting display device is connected with a DC power supply input port. The structural design of the invention is proper; the operation is convenient and the capability is safe and reliable; the work efficiency is enhanced so as to free testing staff from heavy work; the test time is reduced and the time accuracy of switching on and off the high voltage switch is enhanced so as to guarantee the measurement accuracy.

Description

technical field [0001] The invention belongs to the field of measuring testers, in particular to a high-voltage switch mechanical life tester. Background technique [0002] In order to ensure the quality of high-voltage switches, high-voltage switches often need to undergo mechanical life tests. At present, the test methods for the mechanical life of high-voltage switches are all manual operations, that is, multiple people take turns to manually open and close high-voltage switches, and at the same time manually record the number of tests. This kind of mechanical life test using manual operation has the following disadvantages: 1. Since the high-voltage switch needs to be manually opened and closed during the test, the number of operations is as many as tens of thousands to hundreds of thousands of times, so the entire test consumes a lot of time. 2. Affected by human factors, it is difficult to grasp the time interval of the high-voltage switch opening and closing operatio...

AI Technical Summary

Problems solved by technology

This kind of mechanical life test using manual operation has the following disadvantages: 1. Since the high-voltage switch needs to be manually opened and closed during the test, the number of operations is as many as tens of thousands to hundreds of thousands of times, so the entire test consumes a lot of time. 2. Affected by human factors, it is difficult to grasp the time interval of the high-voltage switch opening and closing operation during the test operation. If the interval is too long or the interval is too short, it will affect the measurement results. 3. The high-voltage switch is opened and closed for a long time, which will cause unnecessary damage to the tested sample.

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