IT系统单相接地选择性切除装置研究

摘要

IT系统单相接地后,可带故障运行,供电连续性好.但相当多接地故障,在规定时间内往往不易排除,造成供电安全隐患.结合目前飞速发展的单片机技术,提出IT系统单相接地选择性切除装置研究,以弥补IT系统这一不足.在保持IT系统供电连续性好的优点的前提下,有选择性地切除单相接地故障,保证系统供电安全.%With one single phase earthing,the IT power distribution system with faults can operate with good continuity.However,if many faults are removed within the stipulated time,the safe power supply will be seriously affected.Based on the ARM technology which is growing fast at present,this paper studies the technology of the selective abscission of the single phase earthing for the IT power distribution system to remedy the disadvantages of the system.This technology can remove faults selectively while keep its inherent advantages to ensure the safety of the power distribution system.