一种基于ADPSS的小电流接地选线装置测试方法的研究

摘要

小电流接地系统经常发生故障，影响电网的安全运行。以 ADPSS 仿真系统为主要研究工具，分析对比了中性点不接地、经消弧线圈接地、小电阻接地3种不同小电流接地方式下4种选线装置的性能。同时，结合实例对选线装置性能进行了分析，结果表明各装置都能可靠动作。%The small current grounding system often fails which affects the grid safe. Performance function for four kinds line selection devices which are applied to the small current grounding system through three different earthed modes are analyzed comparatively. The conclusion indicates that all devices can act reliably.