发明名称 INSPECTION SYSTEM FOR DIGITAL CURRENT DIFFERENCE PROTECTIVE DEVICE
摘要 PURPOSE:To provide no follow up operation of delay in working time even for a fault taking place during inspection, by means of processing an inspection and regular protective element treatment during the inspection.
申请公布号 JPS545547(A) 申请公布日期 1979.01.17
申请号 JP19770069875 申请日期 1977.06.15
申请人 HITACHI LTD 发明人 NOHARA HARUO;MAKINO JIYUNICHI
分类号 H02H3/28 主分类号 H02H3/28
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