Test device based on load switch electrical life and mechanical life action characteristics

Abstract

The invention discloses a test device based on load switch electrical life and mechanical life action characteristics, which includes a casing, a microcomputer control system, a test current device, and a load switch test device. The load switch test device includes an automatic feeding mechanism and a clamping mechanism . Automatic opening and closing mechanism; the automatic opening and closing mechanism is arranged in the casing, the automatic feeding mechanism is vertically arranged in the middle of the automatic opening and closing mechanism, and the clamping mechanism is arranged on the side of the automatic feeding mechanism; the microcomputer The control system is connected with the electrode, feeding cylinder, clamping cylinder, electrode cylinder, pressing cylinder, opening and closing cylinder, and is used to supply current to the electrode and control the operation of the cylinder; the test current device is connected to the electrode for testing Electrode working current. The test device based on the electrical life of the load switch and the action characteristic of the mechanical life provided by the invention has the advantages of simple structure, high degree of automation, low labor cost and high judgment efficiency.

Description

technical field [0001] The invention relates to a test device based on load switch electrical life and mechanical life action characteristics, and belongs to the technical field of intelligent testing of load switch action characteristics. Background technique [0002] The load switch is a protector widely used in low-voltage power distribution systems in industrial automation and construction. With the gradual advancement of national industrial automation and construction industry, more and more load switches have been put into on-site operation. The existing operating data of the load switch shows that the routine inspection according to the technical standards can ensure the supply quality of the load switch to a certain extent, but the inherent hidden faults of the load switch cannot be ruled out, such as: false breaking, unstable breaking current value , service life, etc., most of these failures are caused by inaccurate testing of load switches under routine testing c...

AI Technical Summary

Problems solved by technology

The existing operating data of the load switch shows that the routine inspection according to the technical standards can ensure the supply quality of the load switch to a certain extent, but the inherent hidden faults of the load switch cannot be ruled out, such as: false breaking, unstable breaking current value , service life, etc., most of these failures are caused by inaccurate testing of load switches under routine testing conditions

Once it happens, it will not be able to effectively protect the power distribution system where it is located, and the circuit will be cut off quickly, and the consequences will be very serious.

[0003] Regarding the detection of load switch action characteristics, the current relatively conventional detection method is manual, which involves manual adjustment of the current and adjustment of the voltage based on experience. It may need to be adjusted several times and manual judgment is required. The labor intensity is high and the experience requirements are high. As a result, data errors are difficult to find or accidentally found, the probability of occurrence is relatively low, and it is not easy to reproduce, and eventually the same batch of products will be out of the factory with abnormal action characteristics, causing incalculable losses to end users

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