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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 protection relay 差动保护继电器
- 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。
- 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。
- differential protective relay [电] 差接保护电驿
- 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
- 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。
- 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
- 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。
- 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。
- 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。
- Longitudinal differential protection of optical fiber,which is of many merits, has beenused more and more widely in EHV transmission line protection. 光纤纵联差动保护具有许多突出的优点,因而越来越多地用于超高压线路。
- As for differential protection based on full current sampling, optical current transducer (OCT) possesses unmatchable advantages. 在基于全电流的采样值差动保护中，光学电流互感器具有无可比拟的优点。
- The wiringcorrectness of differential protection current loop can be verified using phasor analyzingmethod and on-load testing method. 差动保护电流回路接线是否正确，可通过相量分析法和带负荷检验法进行判断。
- The differential protection is locked when switching the current and voltage, and the misoperation of differential protection is reduced. 在电流、电压回路切换时自动闭锁差动保护，减少了保护误动的机率。
- Current transformer saturation has always been one of the major problems of degraded reliability of the transformer differential protection. 电流互感器饱和是影响变压器差动保护可靠性的重要因素之一。
- Inrush current is about with the theory of differential protection ,but research exotericas of it is used difficulty in fact. 励磁涌流涉及到差动保护的原理问题,是当前研究地热点之一,但多停留在理论层面。
- 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。
- The protection must be disabled before switch and be enabled after switch and it is easy to cause the differential protection misoperation. 在进行电流、电压回路切换时必须先退保护,切换完毕后再投入保护,操作步骤烦琐,容易造成差动保护的误动。
