The C phase of a 220kV circuit which was connected to the bus-bar failed,while after 140ms the bus-bar switched on abnormally.
最近浙江省某变电站发生一起220 kV母线全停事故,接于正母线运行的一条220 kV线路C相故障,切除故障后C相开关重燃引发正母差失灵保护动作,此后由于母联开关偷合造成220 kV副母差动动作以至220 kV母线全停。
The present paper aims to solve the long-existing problem in Sanhe Power Plant that when the bus-bar switch is closed,the warning signal will show that AC circuit breaks and Bus Differential Protection exit is blocked.
针对三河发电有限责任公司长期以来存在的母联开关合闸后,出现交流断线报警信号,母线差动保护出口被闭锁这一问题,通过查阅和分析三河发电有限责任公司220 kV母线差动保护有关图纸和厂家资料,经过回路查线,校验继电器及试验录波和反复研究,确认了问题的根本原因,并制定了解决了方案,从而消除了由于设计问题(从动继电器使用不当)而存在的隐患。
Firstly,the series switch topology is analyzed.
分析了它的串联开关拓扑结构后讨论了开关器件的工艺和参数选择、均压网络对系统暂态和稳态能量的控制I、GBT驱动电路高压隔离与精确同步的解决方案以及系统控制策略的实现等关键技术。
universal triple oblate switch socket
三联扁圆通用开关插座
three-prong plug (two flat and one rounded
三插头(两只扁脚,一只圆脚)
The switches and power sockets for fume hoods shall be placed on the outside of the fume hood.
所有的开关和插座都需安装在通风柜外部。
Safety requirements for switched and fused portable multiple socket-outlet without interlock for household and similar purposes
GB16837-1997家用和类似用途移动式，无联锁、带开关及熔断器组合插座的安全要求
Analysis and Application of the Terminal Connection Technology in the Switches and Sockets
开关、插座中端子连接技术的分析及运用
All switch socket outlets and switches shall be labeled referencing each outlet to its respective breaker in the electrical distribution board.
控制箱中所有空气断路器都有标示其所联的开关和插座。
Computers could be plugged into a national network and be used like radios.
计算机可以通过插座与全国计算网络联接，就象用一架收音机一样。
A fitting connected to a power supply and equipped to receive a plug.
插座联结着电源的插座，可以接纳插头
I had to lower the light switches and raise the power points.
我得把电灯开关调低，把电源插座调高。
The xocket of connection box is the universal ware .It's convenient for users to increase the current through adding socket on the same box and changing switch.
本插接箱插脚采用通作件，如用户需增大分支电流，可在原箱增加插脚，更换开关即可。
type of electrical plugs; square, round, 3 pins, 4 pins, etc.
电气插座的类型: 方的、圆的、3 插头、4 插头等。
Plug the microwave oven into a power point and switch on the power.
把微波炉插头插进电源插座，接通电源。
Plugs and socket-outlets for household and similar purposes--Part 1: General requirements
GB2099.1-1996家用和类似用途插头插座第一部分:通用要求
Switch adapter purchasing--The unignorable step in the electrical construction
开关插座的选购是建筑电气中不容忽视的细节
Analysis on Easily-Neglected Problems Purchasing Wiring Accessories
浅析开关插座产品选购中易忽视的几点问题
3-prong socket protective cover (6 pack)
三眼插座防护盖(6入装)
Make sure to first check your local voltage and set the voltage selector accordingly. (Fig.1)
使用前,必须确认电源插座的电压,并将电压转换开关置于符合该电压的位置。
To connect(an appliance) to an electrical outlet.
插入电源将(电器)联在一个电源插座上