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- AC frequency inverter 交流变频
- Experience in frequency inverter, motor ,MCC, instrumentation. 熟悉变频器;电机;MCC;仪表等现场设备.
- Extruder and hual off adopt AC frequency conversion technology. 挤出机、牵引机等采用交流变频控制技术,调整方便。
- Frequency inverter is a kind of circuit that uses power electronic device to change AC from 50Hz to other frequencies and includes AC/AC and AC/DC/AC types. 变频是指利用电力电子器件将50Hz的交流电变换为用户所要求频率的交流电,它分为直接变频(交-交变频)和间接变频(交-直-交变频)。
- Adopt multi-function digital frequency inverter, and stepless variable speed. 采用多功能数显变频器,无级变速;
- Drive and control part: adopting AC frequency conversion speed, drive step by step, digital closed loop control system. 五、传动及控制部:采用交流变频调速,分步传动,全数字闭环控制系统。
- ALC can be connected; revolution,speed and pressure can be adjusted by touchable screen and PLC program as required .Can be driven by AC frequency conversion electric machine. 根据用户要求,可与ALC(频率监控仪)的连接,可以采用触摸屏与PLC程序控制,可以采用交流变频电机驱动。
- This paper mainly explicates the high frequency inverter circuit and its features and deliberates the question of how to prevent the short circuit of inverter. 主要阐述了高频逆变电路及其特点,以及防止高频逆变桥短路的方法。
- If the load to change the speed of change, with the AC frequency speed not enough to pace disorders, tend to stop or cause damage. 倘若负载改变而使转速改变时,转速即与交流电频率不合,足使其步调紊乱,趋于停止或引起损坏。
- Y. Hatanaka, “Zero-Current-Switching High Frequency Inverter With Constant Frequency Power Control,” Power Conversion Conference, Yokohama, No. 19-21, Apr. 1993, pp. 265-270. 黄少崴,“新型零电流切换脉波宽度调变蓄电池充电器”,昆山科技大学电机工程系硕士论文,2005年。
- The magnetic critical current by magnetic hystersis loop is dependent on field sweeping rate dH/dt and j(subscript c) determined by ac susceptibilty depends on the ac frequency. 交流磁化率法测量的临界电流与交流频率有关,使用高频测量时临界电流的判据较大。
- The scres extruder and the extractor adopt the imported AC frequency control devicc The vacuum pump and the electric vehicle motor employ the superior goods. 螺杆挤出机及牵引机采用进口交流变频调速装置,真空泵及牵引电机均采用优质产品。
- Control Circuit Design of AC Frequency Conversion Systems for Speed Governing[A]Proceedings of 4th International Symposium on Test and Measurement(Volume 2)[C], 2001 . 陈萌;叶桦;达飞鹏.;自动售货机主控制器及执行机构的设计与实现[A]第七届全国信息隐藏暨多媒体信息安全学术大会论文集[C];2007
- Discus sed a tension automatic control system with AC frequency control system and tension sensors, although the normal PID controller is easy to act, its adaptability is bad. 摘要讨论采用交流变频器作为执行机构,压力传感器作为张力检测元件构成的张力控制系统;
- HWH middle frequence inverter,controller and PQS process monitoring system for resistance welding. 德国HWH公司中频电阻焊变频机,控制器,PQS 智能焊接质量检测系统。
- ALC can be connected; revolution, speed and pressure can be adjusted by touchable screen and PLC program as required. Can be driven by AC frequency conversion electric machine. 根据用户要求,可与ALC(率监控仪)连接,可以采用触摸屏与PLC程序控制,可以采用交流变频电机驱动。
- A half-bridge bi-directional current mode high frequency inverter was proposed, and the problem of unequal voltage of capacitance in this circuit can be resolved by adding a balance coil. 提出了半桥双向电流源高频链逆变器的拓扑结构,并对电路固有的电容电压不平衡问题提出了解决方法,采用平衡绕组可以彻底解决电容电压不平衡。
- This paper introduces the application of the programmable controller,the direct current velocity modulation system,the frequency inverter and the electronic cam switch in chamfering machine. 介绍可编程控制器、直流调速系统、变频器、电子凸轮开关在倒棱机中的应用。
- Application of frequency inverter in woolen mill 变频器在毛纺厂的应用
- Frequency Inverter and Environment Protection 变频器与环保