High-voltage multi-point testing equipment and method with main and auxiliary steps

Abstract

The invention relates to high-voltage multi-point testing equipment and a method with main and auxiliary steps. The method comprises the following steps of: connecting a plurality of groups of objects to be tested with the testing equipment and setting various testing parameters through an input device; when testing is begun, carrying out a main-step high-voltage testing program firstly, i.e. simultaneously outputting high voltage to the plurality of groups of objects to be tested through a high voltage generating device, and detecting whether the plurality of groups of objects to be tested are normal or not in the main-step testing program through a central control unit; if so, judging the plurality of objects to be tested are all good products to finish testing; and if the central control unit judges any one of the plurality of objects to be tested is abnormal, entering an auxiliary-step testing program, i.e. respectively testing each group of objects to be tested, and displaying testing results on a display, therefore, which group of tested objects are defective products can be learnt by virtue of the display results on the display. The invention can reduce the testing time and improve the testing speed and is easy to reject the defective products by operators.

Description

technical field [0001] The present invention relates to a testing device, in particular to a high-voltage multi-point testing device and method with primary and secondary steps for parallel testing of multiple objects to be tested in a group mode. Background technique [0002] For general component testing, such as motors, fans, or transformers, the quality inspection must use a withstand voltage machine for high-voltage measurement to confirm whether the object under test meets the withstand voltage conditions of safety specifications. [0003] Therefore, in order to ensure that each component is a good product, a high-voltage test procedure must be carried out before each component leaves the factory. Taking a transformer as an example, the transformer must at least test the primary to core, core to secondary, and primary to secondary Waiting for three test procedures, if each test must be performed for 1 second, each transformer must spend 3 seconds in the test before the...

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Problems solved by technology

[0003] Therefore, in order to ensure that each component is a good product, a high-voltage test procedure must be carried out before each component leaves the factory. Taking a transformer as an example, the transformer must at least test the primary to core, core to secondary, and primary to secondary Waiting for three test procedures, if each test must be performed for 1 second, each transformer must spend 3 seconds on the test before the second transformer can be tested, resulting in long test time, wasting manpower and time, and not in line with economic benefits

[0004] Therefore, in order to improve the above-mentioned shortcomings, there is a group of parallel test equipment coming into the market, which can test multiple sets of transformers at the same time to achieve the purpose of saving test time and manpower; however, testing multiple sets of DUTs at the same time can shorten the test time and Manpower, but when there are defective products in the test group, at this stage, all the test objects in the group are temporarily judged to be defect

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