发明名称 RELAY INSPECTION
摘要 PURPOSE:To detect abnormalities such as disconnection, shortcircuit in auxiliary transformers, current transformers, etc. by applying inspection siganals at normal state and inspecting internal circuits in a transmission line protective relay.
申请公布号 JPS543246(A) 申请公布日期 1979.01.11
申请号 JP19770067946 申请日期 1977.06.10
申请人 HITACHI LTD 发明人 ONO TOSHIO
分类号 G01R31/02;H01H47/00;H02H3/02;H02H3/05 主分类号 G01R31/02
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