摘要
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。而新研制(根据电容电流大小和谐波电流方向综合判断原理)的ML-X小电流接地微机选线装置,经近百个变电站运行,取得了满意效果。该装置对有消弧线圈系统和无消弧线圈系统均可使用。并具有功能齐全,不需整定等诸多优点。
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. The newly developed Type ML-X microprocessor line-selecting device for petty current earthing system is based upon the theory of comprehensive judgement of the value of capacitive curreht and the direction of harmonic current. The system may be used in systems with or without arc-suppressing coil, with advantages of multi-function and no pre-setting needed. It has been widely used satisfactorily in many substations.
出处
《煤矿机电》
北大核心
1991年第1期30-37,共8页
Colliery Mechanical & Electrical Technology
