发明名称 Method and device for signal transmission over the screen of high and medium voltage cables
摘要 <p>The method involves modulating communication signals through transformers on at least one signal conductor (11; R', S', T'), which does not carry any current during normal operation, and which is electrically isolated against at least one adjacent current or adjacent phase conductor (12; R, S, T). These communication signals are simultaneously decoupled from a ground potential. The communication signals are separated from the ground potential in at least one intermediate station (2, 3) with respect to a high frequency (HF) component, and without coupling and/or decoupling. The intermediate station comprises at least one switch (S2, S3) in the current or phase conductor.</p>
申请公布号 EP0844742(A2) 申请公布日期 1998.05.27
申请号 EP19970810816 申请日期 1997.10.31
申请人 ABB RESEARCH LTD. 发明人 LEHMANN, JOSEF;RUDOLF, PAUL;SABBATTINI, BRUNO
分类号 H02J13/00;H04B3/56;(IPC1-7):H04B3/54 主分类号 H02J13/00
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