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1000kV/1000MVA UHV the scene of the transformer no-load test for the first time at home and abroad, in particular test voltage of 380V, Measuring mA current level, the corresponding test technology research is very difficult. In addition the transformer core remanence of the impact test results, effectively to demagnetizating UHV transformers is the key to the trial. In this study, using the method...
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