Saturday, September 17, 2022
问题:在变电站的馈电线路故障或变压器跳闸造成失压时,低频减载装置应()...
Saturday, September 17, 2022
问题:发变组后备保护中电流元件用电流互感器应设置在()。...
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:按照反措要点的要求,220kV变电所信号系统的直流回路应()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:某智能变电站里有两台完全相同的保护装置,请选出下面描述中正确的选...
Saturday, September 17, 2022
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:在高压变电所,有多种渠道将电磁干扰源和受干扰的二次回路和二次设备...
Saturday, September 17, 2022
问题:变压器差动保护在外部短路故障切除后随即误动,原因可能是()。...
Friday, September 16, 2022
问题:对于采用单相重合闸的220kV及以上线路接地保护(无论是零序电流...
Saturday, September 17, 2022
问题:测试仪在下载配置过程中,在导入SCD文件时报查找文件失败,原因是...
Saturday, September 17, 2022
问题:当变压器发生少数绕组匝间短路时,匝间短路电流很大,因而变压器瓦斯...
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:关于自耦变压器零序差动保护,以下说法正确的是()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:一条线路两端同一型号微机高频保护程序版本应()。...
Monday, September 12, 2022
问题:智能保护装置检修过程中如需对光纤进行插拔,应有哪些注意事项?(至...
Saturday, September 17, 2022
问题:把需要传送的信号加到高频载波上去的过程称为()。...
Tuesday, September 13, 2022