发明名称 PREVENTIVE MAINTENANCE DEVICE AND PREVENTIVE MAINTENANCE METHOD FOR SUBSTATION
摘要 PROBLEM TO BE SOLVED: To solve the problem of a conventional system costing much and taking a long time, since there is a need for attachment operation time clocking devices one by one to each apparatus in many substations, existing in each place in a wide range and the worker having to go to the installation location in each place to gather fine measurement results. SOLUTION: A centralized controller 10 and a remote monitor 20 perform clocking of operation time and the counting of the number of times of operation of a breaker and a disconnector, and the centralized controller 10 controls them. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003219579(A) 申请公布日期 2003.07.31
申请号 JP20020013640 申请日期 2002.01.23
申请人 HITACHI LTD;HITACHI INFORMATION & CONTROL SYSTEMS INC 发明人 YUMITA WATARU;SHINADA TOSHIYUKI;HIROSE AKIHIRO
分类号 H02J13/00;(IPC1-7):H02J13/00 主分类号 H02J13/00
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