发明名称 |
PROTECTIVE RELAY |
摘要 |
PURPOSE:To steadily detect the increase in A.C. voltage or current by obtaining memorizable quantity relative to the minimum value of pulsating electricity which related to A.C. electricity and by detecting it as a standard value. |
申请公布号 |
JPS5421555(A) |
申请公布日期 |
1979.02.17 |
申请号 |
JP19770085667 |
申请日期 |
1977.07.19 |
申请人 |
TOKYO SHIBAURA ELECTRIC CO |
发明人 |
ANDOU FUMIO |
分类号 |
H02H3/02;H02H3/00;H02H3/40 |
主分类号 |
H02H3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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