发明名称 |
SYSTEM UND VERFAHREN ZUR ÜBERWACHUNG VON WASSEREINBRÜCHEN AN HOCHSPANNUNGSKABELN |
摘要 |
A water monitoring system and a water monitoring method for a high voltage cable including a conductor and a screen surrounding the conductor. At least a first water sensing wire extends in the screen between the cable beginning and the cable end and at least a second wire is connected with the first wire at the cable end to form a loop. A first switching unit is provided between the cable beginning and the measurement circuit. A control unit controls the first switching unit over a first predetermined time interval into a first switching state in which the water sensing wire and the second wire are connected to the screen potential. In a following second predetermined time interval the control unit controls the first switching unit into a second switching state in which the water sensing wire and the second wire are disconnected from the screen potential. The measurement circuit performs a water intrusion measurement in the second predetermined time interval. |
申请公布号 |
DE60118224(D1) |
申请公布日期 |
2006.05.11 |
申请号 |
DE2001618224 |
申请日期 |
2001.08.14 |
申请人 |
PIRELLI KABEL UND SYSTEME GMBH & CO. KG |
发明人 |
GOEHLICH, LOTHAR |
分类号 |
G01M3/16;G01R31/08 |
主分类号 |
G01M3/16 |
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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