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fan load
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     The fan load and operation characteristics of various speed regulation technique method for fan is put forward.
     本文分析了风机负荷与不同调速方式的运行特性,并提出合理的风机调速方式。
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     In this paper, a new Control method of thyristor adjustableSpeed System of high power factor for induction motor and theprimary Construction princples of system are discussed. Theexperimental power factor curves of system, mechanical characteris-tics, Closed and open-Loop fan load, generator load characteristiccurves and experimental waves are also given.
     本文论述了晶闸管感应电动机高功率因数交流调速系统的一种新颖的控制方案和基本结构原理,给出了样机实验的功率因数曲线、机械特性、开环和闭环风机负载、发电机负载特性曲线和实验波形;
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     Introduces the start-up of small and middle size centrifugal fan and its applications conditions. Based on analyzing fan load characters, briefs the problems that must be considered in start-up process of fan, as well as selection of fan.
     介绍中小型离心风机的启动方式及其适用条件,在分析风机负载特性的基础上,简述了风机的启动过程及在风机选型时必须考虑的启动问题。
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  fan load
The nonlinearity includes theeffect of magnetization saturation and a nonlinear fan load.
      
Fan load penalty and change in no-load spin losses related to demagnetization during testing.
      
Experimental responses for step change in reference speed with fan load Experimental results show a better performance of the FLC drive system.
      


This paper describes a method of solid-liquid extraction to replace the conventional solvent extraction, using FAN loaded polyurethane foams in batch and column operation for preconcentration of the trace Cu, Zn, Cd in aqueous solution. The effects of pH, various anions in batch method and flow-rate in column process on the extraction behavior of Cu, Zn, Cd have been investigated. Preconcentration of Cu, Zn, Cd ions from natural water is successful.

本文研究了PAN负载的聚氨酯泡沫在静态法和动态法对水溶液中Cu、ZnCd离子的萃取行为,同时试验了pH、阴离子以及流速的影响。回收率试验表明,该法能定量捕集天然水中Cu、Zn、Cd离子,结果令人满意。

The fan load and operation characteristics of various speed regulation technique method for fan is put forward.

本文分析了风机负荷与不同调速方式的运行特性,并提出合理的风机调速方式。

In this paper, a new Control method of thyristor adjustableSpeed System of high power factor for induction motor and theprimary Construction princples of system are discussed. Theexperimental power factor curves of system, mechanical characteris-tics, Closed and open-Loop fan load, generator load characteristiccurves and experimental waves are also given. A comparisonof this system and other ac Speed control Systems are beingdescribed.

本文论述了晶闸管感应电动机高功率因数交流调速系统的一种新颖的控制方案和基本结构原理,给出了样机实验的功率因数曲线、机械特性、开环和闭环风机负载、发电机负载特性曲线和实验波形;文末与有关交流调速系统进行了比较。

 
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