电力系统变压器工程 electric power transer engineering
系统供电变压器 system service transformer
牵引系统用固定变压器 Stationary transformers in traction systems
通过分析发现电力机车空载启动和牵引变空载合闸都会在系统变压器中造成和应涌流。
The sympathetic inrush may occur in the system transformer when no-load electric locomotive or traction transformer is switched, so the protection may be affected.
文中从现有微机保护装置存在的两大问题即软件维护扩展功能和软件的实时性，探讨牵引供电系统变压器保护软件的升级方案。
The paper study on maintenance extension and real-time two aspects of the existing digital protection devices software, and upgrade software of traction power supply transformer protection.
变压器保护系统。
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