英语翻译Abstract--This paper presents a new practical accelerate

英语翻译
Abstract--This paper presents a new practical accelerated overcurrent protection scheme for single circuit breaker radial distribution feeder and the implementation of this new scheme into latest numerical relay.Extensive tests have been conducted using the real time digital simulator (RTDS) with respect to a typical single circuit breaker multi-section system.The results prove that the new protection relay is able to not only significantly increase the speed of responses of conventional time grading protection scheme for single circuit breaker radial distribution feeders,but also remove faults from both ends of the protected lines section,therefore to achieve distribution automation.
Keywords—single circuit breaker distribution feeder,accelerated overcurrent protection,directional under voltage relay,RTDS (real time digital simulator)
I.INTRODUCTION
HE security and reliability of distribution system are important to the customer due to the reason that it supplies to the customer directly.With the rapid development of power network,it becomes more and more important for the distribution system to provide high quality power.As such,the associated protection system must also provide fast,secure and reliable operation.However,the conventional time graded overcurrent protection may lead to maximum tripping times too long to prevent excessive disturbance of the power system.Furthermore,the tripping can only be made at one end
(the source end) of the protected line section for radial connected line or open ring systems.Expensive communication channels have to be used to achieve distribution automation for such systems.Moreover,the failure of communication channels will degrade the reliability of the protection system.Therefore,it would be beneficial if the speed of response of the overcurrent based protection scheme could be substantially increased without the need for communication link.It will also be more desirable that the
faulty line section can be automatically removed from both ends to enable the restore power supply to the healthy line sections.

摘要-本文提出了一种新的实践,加快过流保护计划单断路器的径向分布直属及实施这项新计划,到最新的数值继电器.广泛的测试已进行了使用的实时数字模拟器（ rtds ）方面的一个典型的单断路器多条制度.结果证明,新的保护继电器是能够不仅显着增加的速度,反应的常规时间分级保障计划单断路器径向配电馈线,而且也消除故障,从两端的保护线部分,因此,为实现分布自动化.
关键词单断路器配电网馈线,加速过流保护,定向下,电压继电器,rtds （实时数字模拟器）
一,导言
他的安全性和可靠性的分配制度是重要的客户,由于原因是它提供给客户的直接.与快速发展的电网,它变得越来越重要,为的分配制度,以提供高品质的权力.因此,相关的保障制度,还必须提供快速,安全和可靠运行.然而,常规时间梯度过流保护可能导致最高跳闸时代太长,以防止过多的干扰电力系统.此外,跳闸,只能取得一月底
（来源完）保护线第径向连接线或打开环系统.昂贵的沟通渠道,已被用来实现配电自动化等系统.此外,失败的沟通渠道,将降解的可靠性保障制度.因此,这将是有益的,如果反应速度的过基于保障计划,可大幅增加,而不需要通信链路.也将是较为可取的,该
故障选线部分可以自动移除从两端,使恢复电力供应,健康路线,路段.