牵引变电所备用电源自投方案研究

RESEARCH ON THE AUTOMATIC SWITCH-IN SCHEME OF SPARE POWER SUPPLY FOR TRACTION POWER SUBSTATION

从简化牵引变电所二次回路接线出发，提出了在微机变压器保护中实现备用电源自投的方案，给出了牵引变电所备用电源自投的原则和操作过程，这种方案已在三门峡牵引变电所中得到了应用。

As viewed from simplifying the secondary circuit connections of traction power substation,this paper presents an automatic switch-in scheme of spare power supply which is realized in microprocessor-based power transformaer protection,and the principle and operational process of the scheme.This scheme has been used in the Sanmenxia traction power substation.