英语翻译Protective relaying is that area of power system design concerned with minimizing service interrupter and limiting damage to equipment when failures occur.The function of protective relaying is to cause the prompt removal of a defective e

英语翻译Protective relaying is that area of power system design concerned with minimizing service interrupter and limiting damage to equipment when failures occur.The function of protective relaying is to cause the prompt removal of a defective e
英语翻译
Protective relaying is that area of power system design concerned with minimizing service interrupter and limiting damage to equipment when failures occur.The function of protective relaying is to cause the prompt removal of a defective element from a power system.The defective element may have a short circuit or it may be operating in an abnormal manner.Protective relaying systems are design to detect such failures or abnormal conditions quickly and to open a minimum of circuit breakers to isolate the defective element.The effect of quick isolation is threefold:(1)it minimizes or prevents damage to the defective element thus reducing the time and expense of repairs and permitting quicker restoration of the element to service;(2)it minimizes the seriousness and duration of the defective elements affecting on the normal operation of the power system; and (3)it maximizes the power that can be transferred on power systems.The second and third points are of particular significance because they indicate the important role protective relaying plays in assuring maximum service reliability and in system design.The power that can be transmitted across system without the loss of synchronism is the function of fault clearing times.It is apparent that fast fault clearing times permit a higher power transfer than longer clearing times.High-speed clearing of fault can be often provide a means for achieving higher power transfers and thereby defer investment in additional transmission facilities.

英语翻译Protective relaying is that area of power system design concerned with minimizing service interrupter and limiting damage to equipment when failures occur.The function of protective relaying is to cause the prompt removal of a defective e
继电保护这个地区电力系统设计涉及的最小化和限制服务灭弧室损坏设备失效发生.继电保护的作用是造成及时去除一个有缺陷的元素从动力系统.有缺陷的元素可以有一个短路或可运行在一个异常的方式.继电保护系统设计检测这样的失败或非正常条件下快速打开一个最低的断路器隔离有缺陷的元素.快速分离的效果有三个:(1)它减小或防止损害到有缺陷的元素,从而减少修理的时间和费用,并允许更快恢复元素服务;(2)它使严肃性和持续的有缺陷的因素影响电力系统的正常运行;(3)的力量,它能最大限度的实现可以转移在动力系统.第二个和第三个点特别的意义,因为它们表明继电保护的重要作用是在保证最大限度延长使用可靠性和系统设计中.能传送的力量,在系统无损失的同步故障清除的作用时间.很明显,快速故障清除一个更高的功率传输时间允许比长时间清理.高速清除故障经常提供了一种手段来实现更高的权力的转移,从而延缓投资在额外的传输设备.