110 kV XLPE电缆金属护套交叉互联接地探讨

Study on Cross Connection Grounding of Metallic Sheath of 110 kV XLPE Power Cable

结合110 kV XLPE电力电缆金属护套交叉互联接地工程的典型故障案例,用矢量法分析讨论了不同的交叉互联接地方式下,电缆金属护套中的感应电势和环流幅值变化,提出并实施科学的同轴电缆接线方式,快捷有效地降低感应电势和环流幅值。

Aiming at typical cross connection faults of metallic sheath of 110 kV XLPE power cable in operating site, the magnitude of inductive potential and current throughmetallic sheath at different cross connecting models were analyzed and discussed by Vector Analysis Methode in this paper, Some renewing models of cross connection grounding had been proposed and carried out and the magnitude of inductive potential and current throughmetallic sheath were reduced greatly.