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- current frequency converter 电流频率变换
- VFC? Voltage to Frequency Converter? 电压频率变换器?
- Along with the appearance of various compulsive criteria of harmonic suppression,designing the frequency converter with APFC circuit will become a current. 随着各种限制谐波污染的强制规范陆续出台,在变频器中加入APFC电路将成为一种趋势。
- The system can measure the direct current frequency acceleration. 该系统可以测量频率低至直流的加速度。
- Purpose: UHF frequency converter, local oscillator,wide band am plifier. 用途:用于超高频频率转换,负载振荡器,宽频放大。
- Programmable controller, man-machine interface and frequency converter are of Japanese "Mitsubishi" brand. 可编程控制器、人机界面、变频器采用进口产品。
- The displacement of GMI peaks with increasing of driving current frequency appears also. 随着驱动电流频率的增大。
- The testing system was mainly composed of PLC, MMI, frequency converter, approach switch and acceleration transducer. 并通过plc、MI、频器、近开关、速度传感器等组成的控制系统完成了对零部件的振动试验。
- Bear the function of spare unit but consume you less investment when compared with frequency converter. 相比变频,多了备用机的功能,投资反而更少了。
- Cost you less than frequency converter but save you more energy in a certain range. 比变频的投资更少,在部分范围更节能。
- The switchgear cabinets for this crane series feature frequency converter technology. 此系列起重机的开关箱采用变频器技术。
- This paper describes a Static Phase Advancer using thyristor AC-AC frequency converter which is designed for asynchronous induction motor. 介绍了一种由可控硅构成的交交变频器为主要结构的异步电动机静止进相器。
- The New Techniques Development of High Voltage High Power Frequency Converter of ABB Co. ABB高压大功率变频器的最新技术发展
- Adopt multi-function digital-indication frequency converter, and stepless variable speed. 采用多功能数显变频器,无级变速;
- Man-machine interface, programmable controller, tem-controller and frequency converter are of import brand. 人机界面、可编程控制器、温控模块、变频器采用进口产品。
- We mensure voltage、current、frequency and power by using AC synchronized sample technique.We multifrequency and conpensate the sample signal to reduce the errors caused by the change of frequency. 控制器采用交流同步采样方法测量电压、电流、频率、功率等电气量,通过软件对采样信号进行倍频和补偿,以减小频率变化对测量结果造成的误差。
- This new crane has the new FR. Tronic, with continuous speed control of the various motors using a static frequency converter, as standard equipment. 此新型起重机配备新型FR.;tronic;作为标准配置;安装有一个使用静止变频器的马达转速连续控制器。
- Zhao in the business quite busy, and in the current frequency shuttle between Jervois, because in his original home on June 1 before successfully see through property transfer procedures. 面对日益失衡的房地产市场,2003年起,苏州政府出台了一系列调控政策,如期房限转、50平方米以下房子不放贷等政策,严格的政策加上流通渠道不畅,使得精明的江浙投资者闻到了风险的味道。
- This product is used for connecting motor and frequency converter of some other places where higher shielding performance is required. 本产品与变频器连接的电机引线或其它有较高屏蔽要求场合使用。
- Abstract: The method to realize rise and fall o f elevator and control of the door switch by a frequency converter was introduc ed. 文摘:介绍了电梯改造中用一台变频器实现电梯升降及门开关控制的方法,以及电梯调试的一点体会.