| 发明名称 |
DC TRANSMISSION LINE FAULT DETECTOR |
| 摘要 |
PURPOSE:To eliminate the effect of AC power drift by using the stored value of the AC applied at normal time as the reference value for detecting the overlapped AC power change. |
| 申请公布号 |
JPS53114047(A) |
申请公布日期 |
1978.10.05 |
| 申请号 |
JP19770027915 |
申请日期 |
1977.03.16 |
| 申请人 |
HITACHI LTD |
发明人 |
SUGAWARA SHIYOUICHI;WATANABE ATSUMI |
| 分类号 |
H02H3/00 |
主分类号 |
H02H3/00 |
| 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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