the main methods used to reduce elfe include electromagnetic field protection technology, driven shaft earthing system, drive shaft earthing system and electric field counteracting system.
电磁场防护结构工艺、被动轴接地系统、主动轴接地系统和电场抵消系统是目前降低舰船极低频电场的主要方法。
the experimental results prove that this scheme is effective, it has practical significance in lightning protection and earthing system for highway tunnels.
实践证明,行之有效,对公路隧道防雷接地具有现实意义。
the method is applicable in non effective earthing system and is not influenced by transient process.
上述方法适用于各种小电流接地系统,不受暂态过程的影响。
this device is practical in the realisation of unattended power substation and earthing system with little current.
该装置对于小电流接地系统及实现变电站无人值班具有广泛的应用价值。
the paper analyses the theory of some line-selecting earthing devices, they are unable to solve the problem of single-phase earthing line-selecting in petty current earthing system satisfactorily.
本文对几种常用接地选线装置的原理进行了分析,都存在不能园满解决小电流接地系统单相接地的选线问题。