您要查找的是不是：
- protective relay unit 继电器保护装置
- The operation consists of eliminating the sensor and checking for dampness in the area of the Engine Relay Unit. 此预防性操作包括拆除此传感器及检查发动机继电器单元周围湿度两部分。
- As each FFU has over current relay unit ,the capacity of switchboard can be reduced. 因为制品已装有过电流继电器，电源开关容量可以降低。
- 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。
- As each FFU has over current relay unit, the capacity of switchboard can be reduced. Thermal protector, fuse, motor breaker, etc. Can be applied up on request. 因为制品已装有过电流继电器,电源开关容量可以降低。又温度保护器、保险丝、马达断路器等亦可因应需求而设置。
- The lunar communications relay unit (LCRU), a high gain antenna mounted on the LRV, had to be oriented at each station for television transmission to Earth. 真不好意思，碟型天线是用来和地球通讯的。指向那么大个地球还不容易？
- 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。
- 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]
- 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。
- ANSI protective relay designation numbers 美国国家标准保护继电器标准指数
- 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。
- Protective relay applications to transmission lines 传输线路保护继电器的应用
- Intelligent Design on Overload Protective Relay 过载保护继电器的智能化设计
- Test device of protective relay and its property 新一代微机继电保护测试仪及其基本性能
- Microcomputer Based Protective Relay Platform 微机保护平台研究
- pilot line protective relay system 领示线保护继电制
- bearing over-heat protective relay 轴承过热保护继电器
- residual cur-rent operated protective relay 剩余电流继电器
- winding over-heat protective relay 绕组过热保护继电器
