摘要
对于Y/Y/Δ-11接线的变压器微机型差动保护,其各侧电流的角度和变比均可通过软件自动进行补偿。而在负序的一次系统下,若将二次接线人为倒相且按照一般情况进行保护定值整定,则会对差动保护的正常运行产生影响。
For the microprocessor differential protection of Y/Y/Δ-11 wiring transformer, each side of current variable angle and ratio can automatically compensate by software. Under the negative sequence of primary systems, if secondary wiring were artificially phase reversal and set protective constant value according to common situation, which will have effect on normal operation of differential protection.
出处
《宁夏电力》
2007年第6期30-33,共4页
Ningxia Electric Power
关键词
负序
微机保护
主变差动
影响
分析
negative sequence
microprocessor protection
main transformer differential
effect
analysis