地铁直流供电的保护与控制系统对确保地铁的安全可靠运行起着关键作用。
The protection and control system in subway DC power supply systems play a key role in ensuring the safety and reliability of the subway.
直流供电的控制和保护系统对确保轨道交通的安全、可靠的运行，具有举足轻重的作用。
The control and protection system in DC power distribution systems plays a very important role in ensuring the mass transit railway safe and reliable operation.
介绍了地铁直流牵引供电系统框架泄漏保护的优化设计方案。
This paper mainly introduces an optimum design scheme for the frame leakage current protection of DC traction power supply system in metro engineering.
公共交通的安全性是衡量整个系统的首要因素，因此，研究多车直流牵引供电系统继电保护具有重要意义。
The security is the most important thing of the whole public traffic system. Hence, the relay protection study of multi-car's DC traction supply system is significant.
直流牵引供电系统的馈线保护以微处理器为基础，用来完成对直流快速断路器的控制和保护。
The protection of feeder line in DC traction supply system is based on microcomputer, which is used to control and protect the high-speed circuit breakers.
直流断路器是直流供电系统中极其重要的保护设备。
DC circuit breakers are the most important protection equipments for DC power system.
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.
电源电路包括：射频信号发生电路、射频功率放大电路、直流供电电路和附加保护电路，以及与激光头的匹配网络。
The power circuit is composed of following circuits: RF oscillator, RF power amplifier, DC supply power circuit, protection circuit and matching network.
阐明地铁直流牵引供电系统电气保护设置与定值的重要性，着重论述地铁电气保护设置的主要原则。
The significance of electrical protection and definite value of DC traction power supply system for metro is illustrated.
介绍直流牵引供电系统中直流馈线ddl保护的动作原理，以及保护参数的设定原则，并举例说。
The behavior principle of DDL protection for DC feeder in DC traction current supply system and the setting principle of protection parameters are introduced and illustrative examples are given.
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.
介绍了地铁直流牵引供电系统保护的原理，和所采用的几种直流馈线保护方法。
The principle of the relay protection of multi-car's DC traction supply system and the several DC feeder protection methods were presented.
探讨了直流牵引供电系统馈线保护配置，详细分析了基于电流变化特征量保护的原理。
The paper discussed the DC traction power supply system's feeder protection configuration in the end, and detailed analysis the principle of protection based on the current amount.
探讨了直流牵引供电系统馈线保护配置，详细分析了基于电流变化特征量保护的原理。
The paper discussed the DC traction power supply system's feeder protection configuration in the end, and detailed analysis the principle of protection based on the current amount.
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