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???
02/25/07 16:48
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#133667 - Autotransformer for AC motor.
Responding to: ???'s previous message
Hi Chitrakar,

You can't change speed of AC induction motor using autotransformer or SCR phase angle control methods. Only AC fan motor's speed can be varied by varying applied voltages not Induction motor.

Speed of an Induction motor depends on applied AC frequency and for changing speed you will need to use a variable frequency output invertor.

Regards,
Prahlad Purohit

List of 6 messages in thread
TopicAuthorDate
not autotransformer            01/01/70 00:00      
   'Soft starter'            01/01/70 00:00      
   What speed range?            01/01/70 00:00      
   Autotransformer for AC motor.            01/01/70 00:00      
   Why SCR?            01/01/70 00:00      
      buy an 'inverter'            01/01/70 00:00      

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