Compared with conventional electric relay control system, PLC control can run more safely and reliably, and can be operated more practicality, simply and conveniently.
运行安全可靠，操作实用简单方便，PLC控制具有常规继电器控制所不具有的优越性。
By single chip computer control of counter automatically generate tong 1 second stop 4 seconds of signal, make no. 5 relay output drive electric horn turns electrify.
由单片计算机控制的计数器自动产生通1秒停4秒的信号，使5路继电器输出带动电喇叭轮流通电。
A discussion on the reliablilty of static relays is made in this thesis , because some new problems have arisen after static relays are applied on the relay protection of electric system .
讨论了静态型继电器应用于电力系统继电保护后，在可靠性方面出现的一些新问题，分析了产生这些问题的原因，并提出了继电器选型、产品失效预测方面的建议。
It is recognized that the gas density relay can reflex the gas density in gas insulated electric equipment correctly and the pressure relay cant do the same.
一般认为气体密度继电器可以正确反映气体绝缘电气设备的气体密度，而压力继电器则不能。
The RC loop parallel with the card formed an electric circuit on the series relay coil to excite the coil and make the contact maloperate.
为此，提出了在继电器两端并联一个电阻器或者电容器的改进方案，使其起到降低输出继电器两端激励电压的作用。
Electromagnetic relay is an electric component which can be used widely, there are thousands of factories that produce various relays in China.
随着电磁式继电器的应用领域越来越广泛，我国生产该产品的企业现在已有千余家。
Control electric box or circuit board with contactor, relay, or triac that switches to the compressor.
要切换到压缩机，可以通过电流接触器开关，继电器或者双向可控硅来控制电流盒或者电路板。
The invention provides a relay electric arc testing method and a simulated relay electric arc testing method.
提出了一种继电器电弧试验方法和一种模拟继电器电弧试验方法。
The disjunction electric arc testing method for the switching electric appliance contact and the device thereof comprise relay electric arc testing and simulated electric arc testing.
本发明一种开关电器触头分断电弧试验方法及其装置，包括继电器电弧试验和模拟电弧试验。
After a preliminary examination to know. Gray electric hydraulic pump for the ABS relay, the red relay for the ABS solenoid valve. Is one of the most common power supply ABS system.
经过初步检查得知。灰色的为abs液压电动泵继电器，红色的为abs电磁阀继电器。是一种最常见的ABS系统的供电方式。
The hydraulic machines are equipped with two electric control systems-relay and PLC, and three operation modes-mechanic, manual and semi-automatic.
本系列液压机具有继电器控制PLC控制俩种电气控制系统，有调整、手动及半自动三种操作方式。
The state detector inducts the state of the electric equipment from the electrical source line connected to the in-line of the self-maintain relay.
状态检测器是从自保持继电器的进线所连接的电源线上感应电器的状态的。
In power system, it can excite partial parallel resonance or serial resonance, enlarge the harmonic wave, trigger relay protection system in error and disturb electric power energy metering equipment.
在电力系统，它可以刺激局部并联谐振或串联谐振，放大谐波，引发继电保护系统误差和扰乱电力能源计量设备。
Time relay is a use of electromagnetic principle or mechanical theory to realize delay control control electric appliance.
时间继电器是一种利用电磁原理或机械原理实现延时控制的控制电器。
The Control section of relay is adopted the welding structure of printed circuit board, it reduces wiring of control box, improves reliability of electric control.
继电器控制部分采用印 刷板焊接结构，减少了控制箱的接线，提高了电器控制的可靠性。
The control section of relay is adopted the welding structure of printed circuit board, it reduces wiring of control box, improves reliability of electric control.
继电器控制部分采用印刷板焊接结构，减少了控制箱的接线，提高了电器控制的可靠性。
The device offers plentiful electric parameter for microcomputer relay protection equipment and reduces the difficulty of realization.
该设计可以为微机继保装置提供丰富的电气参数，同时大大降低了实现难度。
This text introduces a relay solution of reliably switching high-voltage DC motor load for Hybrid Electric Vehicle.
介绍了一种能够可靠切换混合动力汽车高电压、直流电机负载的继电器解决方案。
Existing electric locomotive air brakes of Shao Shan types are mostly used DK-1 model electric-air braking machine as control component, its core is to adopt the relay and touch logic control.
现有的韶山型电力机车空气制动系统大都采用DK—1型电空制动机作为控制部件，其核心是采用继电器有触点逻辑控制。
The article analyses control circuit of relay contactor in electric circuit experiment and puts forward to control it with logic function.
对电路实验中继电接触器控制线路进行了研究分析，并提出由逻辑函数实现其控制的方法。
The utility model relates to an intermittent relay of an electric fan.
本实用新型为一种电扇间歇继电器。
This paper exemplifies the circuit construction, the function and working principle of the device of control, protect and working state display of electric maching using solid state relay.
介绍了利用固态继电器组成的电机控制、保护、运行状态显示装置的电路组成和工作原理。
The paper introduces the designing method of the digital time-delay relay and gives the detailed electric circuit picture.
阐述了数字式时间继电器的设计方法，给出了详细的电路图。
National Electric Power Dispatching & Communication Center. Questions and Answers About Power System relay[M]. Beijing:CEPP. 2000
国家电力调度通信中心。电力系统继电保护实用技术问答[M]。北京：中国电力出版社.2000。
In the system of relay protection of electric power, abnormal state information given by relay protection devices has two types: accident information message and warning information message.
在电力继电保护系统中，继电保护设备给出的异常状态信息报文通常可分为两类：事故信息报文和预告信息报文。
The relay protector is an extremely important installation to the stability of the operation of the whole electric power system as well as the protected electric facilities.
继电保护装置对整个电力系统的稳定运行以及被保护的电气设备都是极端重要的设施。
The relay protector is an extremely important installation to the stability of the operation of the whole electric power system as well as the protected electric facilities.
继电保护装置对整个电力系统的稳定运行以及被保护的电气设备都是极端重要的设施。
应用推荐