摘要
对双主保护与双后备保护的主变压器保护双重化配置的方式进行了分析 ,在一套保护的机柜中实现主保护与后备保护合一 ,使得内部连线和外围接线均简洁。提出了双主保护与双后备保护的主变压器保护的电流回路接入方式及相应的二次回路接线 ,并提出主变压器保护双重化的运行方式及操作要求 ,以增加保护装置运行的灵活性和可靠性 ,减少了现场操作程序 ,特别是减少因切换电流回路造成的保护不正确动作。
The form of main transformer duplicate protection disposition including the double main protection and the back-up protection,which are combined in one in a cabinet for simplifying the inner and the outer connections is analysed.The current circuit connection scheme and the secondary circuit connection,as well as the operation mode of which are suggested to increase the flexibility and reliability of operation and to simplifying the operation program,especially to decreased the male-operation possibility during current circuit switching.
出处
《江苏电机工程》
2003年第3期13-15,共3页
Jiangsu Electrical Engineering
