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发明名称
STEP-OUT DETECTION DIGITAL RELAY FOR THREE-PHASE AC CIRCUIT
摘要
申请公布号
JPH01238417(A)
申请公布日期
1989.09.22
申请号
JP19880061971
申请日期
1988.03.17
申请人
HITACHI LTD
发明人
FUJII DAISUKE;MATSUYAMA TAKAKAZU;MATSUI YOSHIAKI
分类号
H02H3/44;H02H3/48
主分类号
H02H3/44
代理机构
代理人
主权项
地址
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