发明名称 DIGITAL PROTECTIVE RELAY DEVICE
摘要 PURPOSE:To conduct an accident corresponding functional test at an arbitrary time easily by using an output from a circuit outputting the arbitrary processing timing of software during automatic inspection for controlling an input to a tester. CONSTITUTION:The usage of this function is selected by a terminal 1. When both a trip-lock confirmatory signal and the service conditions of the terminal 1 hold, an AND gate 2 outputs a signal. An output circuit 4 is operated by one-shot circuit 3 emitting an output for a fixed time. X represents a contact closed by the output from the output circuit 4, and is closed during the time when one-shot circuit 3 outputs a signal. The X contact is used for controlling the application of an input to a tester, thus allowing the test of an accident corresponding function at an arbitrary one point after a trip-lock confirmatory time. That is, an output from a circuit outputting arbitrary timing in software during automatic inspection is employed for controlling the input to the tester, thus attaining said object.
申请公布号 JPH0370423(A) 申请公布日期 1991.03.26
申请号 JP19890201331 申请日期 1989.08.04
申请人 TOSHIBA CORP 发明人 KONNO MASAHIRO
分类号 H02H3/05 主分类号 H02H3/05
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