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   数字式母线保护 的翻译结果: 查询用时:0.208秒
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数字式母线保护
相关语句
  digital bus protection
     Application of REB500 Digital Bus Protection Device to Fengman Hydropower Plant
     REB500型数字式母线保护在丰满发电厂的应用
短句来源
     Considering the status of routine bus protection of the Fengman Hydropower Plant, the REB500 digital bus protection device is imported.
     针对丰满发电厂常规母线保护的运行状况,引进了REB500型数字式母线保护
短句来源
     The application shows the advantage and practicability of the REB500 digital bus protection device. It plays an important role in the 220 kV bus protection system of the plant, and the expected effect is obtained.
     应用结果表明,REB500型数字式母线保护原理先进、实用性强,在丰满发电厂220 kV母线保护系统应用中发挥了重要作用,达到了预期效果。
短句来源
  “数字式母线保护”译为未确定词的双语例句
     Application of Digital Busbar Protection in Fengman Hydraulic Power Plant
     数字式母线保护在丰满发电厂的应用
短句来源
     Th e decentralized numeric busbar protection is an enhanced busbar protection with mo re advanced principle and strong computing ability,which is based on the centra lized microcom-puter busbar protection.
     数字分布式母线保护是在原有的集中式微机母线保护的基础上发展起来的一种原理更先进、计算能力更强的新型数字式母线保护
短句来源
  相似匹配句对
     Application of Digital Busbar Protection in Fengman Hydraulic Power Plant
     数字式母线保护在丰满发电厂的应用
短句来源
     Digitalization of Bus Protection
     母线保护的数字化
短句来源
     Application of REB500 Digital Bus Protection Device to Fengman Hydropower Plant
     REB500型数字式母线保护在丰满发电厂的应用
短句来源
     The ANN Model of Bus-bar Protection
     母线保护的人工神经网络模型
短句来源
     A RESEARCH ON DIGITAL MOTOR PROTECTOR
     数字式电动机保护探讨
短句来源
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The reliability of busbar protection has influenced the safe and stable operation of electric power system.Analyzed the criteria of busbar protection,the sampling arithmetic used for numberic busbar protection is presented in this paper.Using this theory,the high speed for operation and stability for CT saturation of busbar protection is satisfied.The theories for voltage protection,charging protection and current break failure protection are also introduced.Hundred of protections using the sampling arithmetic...

The reliability of busbar protection has influenced the safe and stable operation of electric power system.Analyzed the criteria of busbar protection,the sampling arithmetic used for numberic busbar protection is presented in this paper.Using this theory,the high speed for operation and stability for CT saturation of busbar protection is satisfied.The theories for voltage protection,charging protection and current break failure protection are also introduced.Hundred of protections using the sampling arithmetic have been served in electric power system.

母线保护装置的可靠性关系到电力系统的安全、稳定运行。文中分析了母线保护的判据 ,提出了一种用于数字式母线保护装置的瞬时值的母线差动保护方案。该方案实现了母线保护的快速、较高的抗CT饱和的要求。此外还介绍了与母线保护配合的电压闭锁、母线充电保护、断路器失灵保护的原理及实现。已有采用此方案的数字式母线保护装置在电力系统中运行

Th e decentralized numeric busbar protection is an enhanced busbar protection with mo re advanced principle and strong computing ability,which is based on the centra lized microcom-puter busbar protection.However,it is still influenced by CT’ s saturation.An applied method is proposed for it to confirm the CT-saturation by calculating the ratio of secondary current to diffe-rential current ,with which the protection could be blocked to avoid the misoperation when out-area CT-saturation occurs.

数字分布式母线保护是在原有的集中式微机母线保护的基础上发展起来的一种原理更先进、计算能力更强的新型数字式母线保护。就目前分布式母线保护仍与集中式母线保护具有同样的关键技术点——受电流互感器(TA)饱和影响的问题,提出了一种新的解决办法:通过计算二次电流和差流的谐波比大小可以确定TA是否发生了饱和,从而使区外故障TA发生饱和时闭锁保护,不使保护误动。

This paper proposes the problem that busbar protection with easy operation when CT seriously saturated by external fault busbar operation and the problem that busbar protection with hard operation caused by the decrease of the differential current which results in the flowing current when the fault location from the external zone to the internal zone.General microprocessor-based busbar protection devices can't distinguish them rapidly. In SG B750 digital busbar protection,the disscussion is based on new CT anti-saturation...

This paper proposes the problem that busbar protection with easy operation when CT seriously saturated by external fault busbar operation and the problem that busbar protection with hard operation caused by the decrease of the differential current which results in the flowing current when the fault location from the external zone to the internal zone.General microprocessor-based busbar protection devices can't distinguish them rapidly. In SG B750 digital busbar protection,the disscussion is based on new CT anti-saturation theory——differential track scaned theory.The protector theory depends on the changes of the current transformer fault characteristics which can distinguish the power system internal fault rapidly and effectively.The data is correct and reliable.

针对母线区外故障CT严重饱和时母差容易动作和区外故障转区内故障时存在流出电流而使得差动电流偏小母差不易动作的问题,一般微机母线保护对这两种情况反应不够灵敏。对SG B750数字式母线保护装置中采用的抗CT饱和新原理———差电流轨迹扫描法进行了探讨。该原理抓住故障CT传变特性,快速有效判断出系统所发生的故障类型,判据准确可靠。

 
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