牵引变压器是牵引变电站中最重要的电气设备，牵引变压器保护装置是整个牵引供电系统安全稳定运行的基础。
Traction transformer is the most important electrical equipment of traction substation. Also traction transformer protection device is the foundation of safe and stable traction power supply system.
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.
分析了轨道交通直流牵引供电系统的直流设备电压型框架保护装置与轨道电位限制装置定值和时间配合存在的问题及解决办法。
It analyses the rail transit DC traction power supply system voltage type frame protect device and rail voltage limited device matching problems that solve their adjusting value and time.
同相牵引供电系统的核心装置主要是牵引变压器和平衡变换装置。
The central device of cophase traction power supply system was traction transformer and balance convert device.
介绍了直流牵引供电系统中常见的框架泄漏保护装置的原理，并与轨电位装置进行比较，说明两者的配合。
Introduces the principle of frame leak protection in DC traction power supply system, and compares it with OVPD to explain the cooperation of them.
介绍了直流牵引供电系统中常见的框架泄漏保护装置的原理，并与轨电位装置进行比较，说明两者的配合。
Introduces the principle of frame leak protection in DC traction power supply system, and compares it with OVPD to explain the cooperation of them.
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