浅谈提高继保护可靠性的措施中英文对照.doc

浅谈提高继电保护可靠性的措施中英文 On improving English reliability measures of relay protection 本文就多年的工作实践对当前电力系统继电保护状态检修的运行维护进行的分析与探讨，并就提高继电保护可靠性的措施，提出几点建议。 Based on years of practical work on the current state of the power system operation and maintenance of relay protection maintenance discussion and analysis, and the measures to improve the reliability of the relay protection, and puts forward some suggestions. 　一、继电保护装置的特点 Characteristics, relay protection device 　　若想强化对继电保护的运行维护，就要首先了解继电保护装置的特点，使其能满足基本的运行要求。继电保护装置主要以下几个方面的特点：1）可靠性。继电保护装置的可靠性特征是其最具特色的特点，在电力系统运行过程中发生故障时，继电保护装置会在其保护范围内对故障做出可靠动作，有效断开故障点的扩大。2）选择性。继电保护装置在电力系统运行出现故障时，会有选择地切出故障，将最接近故障点的开关设备及时断开，有效防止故障的扩大，让电力系统故障部分除外的其他部分还能持续正常运行。3）灵敏性。继电保护装置的灵敏性可用过灵敏系数来衡量，是指它对保护范围内的异常状态或运行故障的反应能力。4）快速性。在系统发生故障时，继电保护装置能以允许的最快速度做出反应，及时断开开关设备以确保故障无蔓延扩大趋势，对故障元件损坏程度的减轻也起到很好作用，为故障解除后的电力系统同步运行的安全稳定的实现奠定基础 To strengthen the maintenance of protective relaying operation, we must first understand the characteristics of the relay protection device, which can meet the basic requirements of operation. Characteristics of the relay protection device is mainly in the following aspects: 1) reliability. The reliability of relay protection device is the most characteristic features, the fault occurred in the running process of power system, relay protection device in the protection action to make reliable fault range, effective disconnection of expanding the fault point. 2) selective. Relay protection device failure in power system operation, can selectively cut out fault, switching equipment will be closest to the fault point in time off, to enlarge the effective to prevent failures, power system fault but also other parts except for the normal operation. 3) sensitivity. Relay protection device sensitivity by sensitivity coefficient to measure, it is to protect the range of abnormal or fault response capability. 4) fast. When faults occur in power system, relay protection device to the fastest speed to allow timely response, disconnect switch equ