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电站山坡电缆沟雷害分析与防护

Yonghui ZHANG,Zhiyong ZHENG,Haiou GAO,Miao ZHANG

Insulators and Surge Arresters（2018）

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Abstract
针对电站山坡电缆沟遭受雷击的情况,着重分析了雷电直击山坡电缆沟中高压电缆时,高压电缆缆芯及二次电缆屏蔽层的电磁耦合情况.运用ATP-EMTP电磁仿真软件,建立高压电缆分布式参数模型,分析高压电缆缆芯的感应电压,同时分析二次电缆接地方式对电磁耦合的影响;针对屏蔽层附加电流的影响,提出合理的避雷针与电缆沟的铺设距离.
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