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- The veracious fixed value of the differential protection relay is very important, which directly affects the reliability of short out alternately, neutral-point and direct or indirect grounding. 作为电力系统中变压器及发电机的主保护元件,差动保护继电器整定值选择的准确性直接影响其相间短路、中性点直接或间接接地的可靠性。
- differential protective relay [电] 差接保护电驿
- differential protection relay 差动保护继电器
- An "Overcurrent Relay" is a type of protective relay which operates when the load current exceeds a preset value. 过电流继电器是继电保护装置的一种,当负载电流超过整定值时,继电器动作。
- Voltage Clamping. The circuitry necessary to protect relay contacts from excessive voltage caused by switching current into inductive loads. 电压箝位为保护继电器触点不受切换至感性负载的电流引起的太大电压损坏所必须的电路。
- After analyzing the reasons and characteristics of com m unication data error of current differential protection relay18.acom m unication error correcting m ethod is given to accelerate tripping of relay. 分析了通信过程中数据出错的原因和特点,然后给出了根据汉明码纠错原理推出的纵差保护数据通信的纠错方法,借以提高保护的动作速度。
- This paper proposes differential protective criterions used superimposed current components available for T-connection transmission lines. 本文提出了基于电流故障分量的T接线路差动保护判据。
- Which cause the maloperation of current differential protection. 谐波含量高,造成电流波形畸变,并最终导致了变压器差动保护的误动。
- Job elements in vertical differential protect of electric transformer and protect bound in course of electric transformer are introduced. 介绍了电力变压器纵联差动保护的工作原理和变压器在运行中保护装置的保护范围。
- Causes of the Wrong Action of the NC controlled Longitudinal Differential Protection Relays for Motors and the Countermeasures 电动机数字纵差保护继电器误动作的原因和对策
- YUE Quan-ming,GU Yong-peng,LU Fei-peng.GA based determination of minimum break point set for optional coordination of directional protective relay in a multiloop network[J].Relay,2002,30(8) :23 -26. [6]乐全明;顾永朋;吕飞鹏.;基于GA的环网方向保护配合最小断点集的计算[J]
- It presents several principles of differential protection for generators. 介绍了各种微机发电机差动保护的原理。
- Be familiar with electric engineering design, detail design, PSB requirement, LV/MV switchgear, and protection relay. 熟悉电力设计、二次图设计、开关柜设计、继电器保护设计。
- Sensitive protective relays operated by ground fault currents clear these faults at an early stage. 由接地故障电流而动作的灵敏保护继电器在故障早期就将故障清除。
- Export of medium voltage protection relays and energy meters. 出口中级电压带保护继电器和累计式瓦特表。
- GE Yaozhong. Adaptive protection relay and itps prospect ofdevelopment . Automation of Elect ric Power Systems , 1997 ,21 (9) : 42246. 葛耀中.;自适应继电保护及其前景展望
- In the end, the distribution network reliabilities considering voltage sags and protective relays or not are compared. 最后比较了计及电压暂降和保护性能前后的配电网可靠性指标变化。
- A kind of design method of microprocessor protection relay apparatus based on real time operating system(RTOS) was introduced in this paper. 介绍了一种基于实时操作系统的微机继电保护装置的设计方法。
- Abstract: To seek an appropriate algorithm is an important task for microprocessor-based protective relaying. 摘 要: 寻找合适的算法是微机保护的一个重要任务。
- HE Jia-li,SONG Cong-ju.Principle of power system protective relaying [M].Beijing :China Electric Power Press,1994. [1]贺家李;宋丛矩.;电力系统继电保护原理[M]