发明名称 TRANSFORMER MEASURING METHOD, EVALUATION FACILITIES, AND TRANSFORMER USING THE SAME
摘要 PROBLEM TO BE SOLVED: To easily and quickly measure the total loss, including a primary winding and a secondary winding by simultaneously supplying currents to the primary-side winding and the secondary-side winding for precisely measuring the loss of a transformer. SOLUTION: The secondary-side terminal of the transformer is short-circuited and the loss resistance component is measured from the primary-side so that the total loss including the primary-side winding and the secondary winding can be measured. In the actual condition that achieves skin effect and proximity effect, it can be used as evaluation facilities or inspection facilities, since it is simple and quick, and the transformers allowing precise and simple comparison are achieved, when described in catalogs or specifications. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007206006(A) 申请公布日期 2007.08.16
申请号 JP20060027863 申请日期 2006.02.06
申请人 HITACHI LTD 发明人 YAMAMURA HIDEO;MARU NAOKI;NISHISU KOJI;NAITO YOICHI
分类号 G01R27/26;H01F41/00 主分类号 G01R27/26
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