CAJ | 학술논문

世界各国对中压电网中性点接地方式的选择并不统一,对其也没有统一的定论,实际上各种接地方式都各有利弊。中压电网不断扩大的同时,系统的单相接地电流也快速增加,发生故障时送电线路和变电站事故较多。此文利用ATP仿真软件分析了各种接地方式下的基本运行特性,从而得出了以电缆为主的电网采用中性点经电阻接地方式是适合的结论。
세계각국대중압전망중성점접지방식적선택병불통일,대기야몰유통일적정론,실제상각충접지방식도각유리폐。중압전망불단확대적동시,계통적단상접지전류야쾌속증가,발생고장시송전선로화변전참사고교다。차문이용ATP방진연건분석료각충접지방식하적기본운행특성,종이득출료이전람위주적전망채용중성점경전조접지방식시괄합적결론。
The choice of neutral-point grounding method on MV network is not uniform in various countries,there are still different views by what kinds of grounding method,In fact,all sorts of grounding method all have their advantages and disadvantages.With expanding constantly on MV network,the current of the one-phase grounding increases constantly too,when one-phase grounding fault happens,there are more accidents in the lines and substations.In the paper,the basic operation characteristic of system are analysed by ATP software in the different of grounding method,it is well obtained that resistance grounding method is appropriate in the MV network of the cable-based.