The breaking and closing of main loop and grounding ioop aer realized by operating device . the speed is determined by the spring , with no regrad to handling speed . the remote inducting and control are available if equipped with automatic instrument 由独立于开关的手动或电动操动机机构进行主回路,接地回路的分合和开断,开关的分合速度由弹簧决定,与手动速度无关,在加装自动化仪表后,可实现遥感和遥控。
Suitable for and exchange specified voltage for 300500v and following generally or special environmental terms have high computer monitoring system that require relatively to anti - interference performance , collecting the scattered control system ( dcs ) , automatic instrument device and signal which measures the letter instrument are transmitted 适用范围适用于交流额定电压为300500v及以下一般或特殊环境条件下对于抗干扰性能有较高要求的计算机监控系统,集散型控制系统( dcs ) ,自动化仪表装置及检测信仪器的信号传输。
Transformed the six - bar guide - bar mechanism realizing linear displacement in automatic instruments into a basic rotating guide - bar mechanism , established the mathematical model of velocity approaching constant by the classical approximate synthesis theory and the modern error theory , discussedthe influences of the existent region of main mechanismic parameters on kinematic and dynamic properties , analysed the theoretical transmission ratio error , advances systematic , complete steps and methods for dimensional synthesis of this mechanism with computer aided design 将自动化仪表中实现线性输出的六杆导杆机构转化为基础转动导杆机构,应用经典的机构近似综合理论与现代的误差理论,建立了速度逼近常数的数学模型,讨论了主要机构参数存在区域及对运动、动力性能的影响,分析了传动比理论误差,提出了系统完整的计算机辅助尺度综合的步骤与方法。