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相关语句
继电器
    JDC A Electric Relay Intelligent Detecting Set
    JDC-A型继电器智能检测台
    High Accuracy Measurement of Delay Time for the Time Electric Relay
    时间继电器延迟时间的高准确度测量
    Abstract Through careful compensation to control proportioning of concrete mixing station,this computer control system may eliminate weighing error which is usually brought since lag of stock column under automatic control of adopting overtravel limit switch,electric relay and programmer, thus it can satisfy requirement of production on accuracy.
    该计算机控制系统是通过谨慎补偿来控制混凝土搅拌站配料,可以克服通常利用行程开关、继电器或编程器的自动控制方式控制配料时由料柱滞后产生的称量误差,并满足生产精度要求。
    Development about Microcomputer-based Detecting System for the Temperature Electric Relay
    温度继电器微机检测系统的研制
    It is composed of four parts: DC (Direct Current) power supply, resonance charging and polarity reverse unit, electric relay control unit and computer control unit.
    它主要由四部分组成:三相整流直流电源,谐振充电及电压反向单元,继电器控制单元,计算机控制单元。
    Based on the detecting process of the temperature electric relay this detecting system adopted external bus technology,printer intellectual interface block design method and some craftsmanships determining the switch logic states
    根据温度继电器的检测工艺,该检测系统采用了外总线技术、智能打印机接口、模块化的软件设计方法,以及判断开关量逻辑状态的某些技巧。
    The drawbacks of using electric relay control as interface circuit with crane remote control device are presemted in this paper,which introduces also the functional features of F 21A remote control device and the control requirements of 10t OTC. The paper puts forward GE 1 type PC as interface circuit between crane and remote control device to extend functions of the device. The characteristics of both interface circuits are compared in the paper.
    指出用继电器控制作为F系列起重机遥控器接口电路的缺点,介绍了F-21A遥控器的功能特点及10t桥式起重机的控制要求,提出了用GE-I型PC作为上述遥控器与起重机之间的接口电路,实现遥控器功能扩展的设计方案,比较了两种接口电路性能特点。
    The principle,characteristics,function and applied prospect about the JDC A electric relay intelligent detecting set were introduced in this paper.
    介绍JDC-A型继电器智能检测台的工作原理、特点、性能和应用前景。
    2 electric arc furnace were made of S5—115U PLC of Siemens company and R150 system of America. The structure of this control system was simplicity,its function and operation reliability were well. Thus,maintenance of the control system was low,and its life performance was better than the control system of electric relay.
    采用德国西门子S5—115U PLC和HONEYWELL公司的R150 集散系统来分别构成涟钢1# 、2# 电弧炉控制系统, 使控制系统结构简单, 功能强大, 实用可靠, 克服了传统继电器控制系统的可靠性低、维修量大、继电器寿命短等缺点。
    Questions on control—protected electric circuit were analyzed. Practicability and advantage of substitution of PLC for control—protected system of electric relay were also discussed . Designing and collocation of hardware of the PLC control-protected system,program composition of the PLC system, its application effect were introduced.
    分析了大电流整流机组中保护、控制电路中存在的问题 ,以及可编程控制器取代继电器保护、控制系统的可行性和优越性 ,介绍了 PLC保护、控制系统的硬件设计与配置 ,PL C程序设计 ,以及应用效果。
    The application of PLC in elevator's control system overcomes the sh ortages of more complicated circuit, bigger volume, higher failure rate and diff icult maintenance of the control circuit controlled by the electric relay, and m akes the system reliability be strengthened.
    将PLC应用于电梯控制,克服了继电器控制的控制线路复杂、体积大、故障率高、难于维护等缺点,控制系统可靠性增强。
    The application of PLC in elevator's control system overcomes the shortages of more complicated circuit,bigger(volume,) higher failure rate and difficult maintenance of the control circuit controlled by the electric relay,and makes the system reliability be strengthened.
    将PLC应用于电梯控制,克服了继电器控制的控制线路复杂、体积大、故障率高、难于维护等缺点,控制系统可靠性增强。
    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。
 

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