During the production of semi-finished and finished products of power transformers, before the newly installed transformers are put into operation and in accordance with the preventive test regulations of the Ministry of Electric Power, it is required to conduct regular turns ratio or voltage ratio tests on the operating transformers. The operation of the traditional transformation ratio bridge is cumbersome, the reading is not intuitive, and the necessary conversion must be carried out. The test result is only one phase transformation ratio data. The fully automatic ratio tester overcomes the shortcomings of the traditional ratio bridge test. The screen uses a large-screen dot-matrix liquid crystal display, with Chinese menu prompt function, simple and intuitive operation, complete three-phase transformation ratio test at one time, the test speed is fast, and the accuracy is high.
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