Abstract：The level of high-speed railway electrical traction power is very high, and so is the short circuit current, so the short circuit fault happened the thermal stability of traction transformer is more easily to damage. The current protection scheme of traction transformer can not meet the needs of security and stability completely. In this paper the inverse time overcurrent protection act as the backup protection of traction transformer, coordinated with the main protection and other backup protection. Making a study on its application circumstances, and proposing the protection scheme of inverse time overcurrent protection.
周昌松. 反时限过流保护作为高速铁路牵引变压器后备保护的研究[J]. 电气技术, 2013, 14(6): 38-40.
Zhou Changsong. Research on the Inverse Time Overcurrent Protection Act as Traction Transformer Backup Protection of High-speed Railway. Electrical Engineering, 2013, 14(6): 38-40.