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???
12/01/05 13:42
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#104490 - It is a common misconception that you ta
Responding to: ???'s previous message
Valentin,
Intersting what you post, but I still stand by my answer to the question:

please also explain me the effect of higher frequency say 120 hz. to 50 hz rated motor.

It is a common misconception that you take "a" motor and drive it through an inverter. You need a motor designed for inverter drive and (as you mention) in some cases even forced cooling.

Erik


List of 14 messages in thread
TopicAuthorDate
ac drive            01/01/70 00:00      
   How to select            01/01/70 00:00      
   Speed sensor            01/01/70 00:00      
      Re: ac drive            01/01/70 00:00      
   AC drives (inverters)            01/01/70 00:00      
       AC Drive- Can you help?            01/01/70 00:00      
         ABB, Siemens            01/01/70 00:00      
         No, I have not been involved in inverter            01/01/70 00:00      
            When & which make?            01/01/70 00:00      
               I recall            01/01/70 00:00      
   most likely it will blow up            01/01/70 00:00      
      Not in every case            01/01/70 00:00      
         It is a common misconception that you ta            01/01/70 00:00      
            motor drives            01/01/70 00:00      

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