接地变压器住轨道交通电力系统中的应用与分析

摘要

介绍接地变压器的原理、工作特点，以及接地变压器在轨道交通供电系统中的实际运用。从保护动作可靠性、系统运行方式调整的灵活性和安全性以及建设成本3个方面，对2种不同接线方式的接地变压器进行了分析比较。并从日常运行维护角度建议接地变压器采用独立的断路器。%The article introduces the principle of earthing transformer, working characteristics, as well as the earthing transformer in the practice of rail transit power supply system. From the three aspects of protection of the operating reliability, flexibility and safety of the system operating mode change, as well as construction costs, two different kinds of wiring for earthing transformer are analyzed and compared. From the daily operation and maintenance aspects, separate circuit breakers for earthing transformer are proposed.