Distribution transformer automatic switching detection system and method
A distribution transformer and automatic switching technology, which is applied in transformer testing and other directions, can solve the problems of cumbersome inspection process, low work efficiency, and high inspection cost, and achieve the effects of simple inspection process, improved work efficiency, and avoiding repeated wiring
Active Publication Date: 2022-04-29
STATE GRID HUBEI ELECTRIC POWER RES INST
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[0002] At this stage, when the factory inspection of distribution transformers is carried out, different instruments are usually connected to the distribution transformers for inspection. During the inspection process, different inspection instruments need to be manually wired, which makes the inspection process cumbersome and labor-intensive. , low work efficiency and high inspection cost
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[0026] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.
[0027] The term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed elements, or also elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.
[0028]...
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The invention relates to an automatic switching detection system and method for a distribution transformer, and the system comprises a variable-frequency power supply, and the output end of the variable-frequency power supply is connected with the input end of a first AC contactor and the input end of a second AC contactor. The output end of the first alternating current contactor is connected with a first three-phase low-voltage capacitor, a second three-phase low-voltage capacitor and a power analyzer; the output end of the second alternating current contactor is connected with a third alternating current contactor and a power frequency test transformer; the power frequency test transformer is connected with a third alternating current contactor and an insulation resistance tester; the power analyzer is connected with a fourth AC contactor and a tested transformer. The power frequency test transformer is also connected with a second tested transformer, and the second tested transformer is connected with the three-channel DC resistance transformation ratio tester. Detection items are automatically switched, repeated wiring is avoided, the detection process is simple, labor is saved, and the working efficiency is remarkably improved.
Description
technical field [0001] The present application relates to the field of detection of distribution transformers, in particular to a detection system and method for automatic switching of distribution transformers. Background technique [0002] At this stage, when the factory inspection of distribution transformers is carried out, different instruments are usually connected to the distribution transformers for inspection. During the inspection process, different inspection instruments need to be manually wired, which makes the inspection process cumbersome and labor-intensive. , low work efficiency and high inspection cost. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a distribution transformer automatic switching detection system and method, which can automatically switch detection items and avoid repeated wiring. [0004] In order to achieve the above object, the application provides the following technical solu...
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IPC IPC(8): G01R31/62
CPCG01R31/62
Inventor 熊虎李家源于树义江晓光李文佩向彬黄爱群
Owner STATE GRID HUBEI ELECTRIC POWER RES INST