摘要
针对5年来安徽省电网高频保护动作情况的统计结果及高频保护的运行情况,总结归纳出易发生误动的高频保护类型及造成误动的原因,主要有高频通道设备、收发信机、保护装置、通道干扰等问题。并结合实际介绍了防误动所采取的具体措施及改进办法,包括二次回路抗干扰措施;保护装置交、直流电压、电流入口处加装抗干扰电容;收发信机及保护装置加装抗干扰及反措;高频加工设备的反措等。
Based on the statistics of high-frequency protection operation within Anhui power network in recent five years, the protection types with frequent misoperations and their reasons are summarized, including high-frequency channel devices,transceiver,protection equipment,channel interference and so on. Some countermeasures against misoperation are introduced: anti-interference measures in secondary circuit; anti-interference capacitances at AC/DC voltage / current input channels of protection equipment; anti-interference and anti-accident measures for transceiver and protection equipment; anti-accident measures for high-frequency processing equipment.
出处
《电力自动化设备》
EI
CSCD
北大核心
2005年第5期98-101,共4页
Electric Power Automation Equipment
关键词
高频保护
异常分析
对策
high-frequency protection
abnormal analysis
countermeasure
