发明名称 |
LIGHTNING ARRESTER WITH LEAKAGE CURRENT DETECTION |
摘要 |
<p>LIGHTNING ARRESTER WITH LEAKAGE CURRENT DETECTION A lightning arrester comprises nonlinear resistance discs 2 stacked within a ceramic casing 1, with annular metal cover rings 3, 4 being fixed to the opposite outer ends of the casing. Conductive plates 5, 19 having reduced thickness rupturable central portions are sealed to the inner ends of the casing, with the lower plate 19 being insulated from the lower ring 4 by an insulating ring 20. An ammeter 16 is connected between the conductive plate 19 and ground by a lead wire 21 passing through the ring skirt but insulated therefrom, whereby only leakage current passing through the nonlinear resistance discs is sensed.</p> |
申请公布号 |
CA1212411(A) |
申请公布日期 |
1986.10.07 |
申请号 |
CA19830431789 |
申请日期 |
1983.07.05 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
FUJIWARA, YUKIO;SONOYAMA, SEIJI;IMATAKI, MITSUMASA |
分类号 |
H01C7/12;H01T4/02;H02H3/04;(IPC1-7):H01C7/12;H02H9/04 |
主分类号 |
H01C7/12 |
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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