Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Jacob Boyce
01/03/13 06:44
Read: 638 times
Philadelphia
USA


 
Msg Score: +1
 +1 Informative
#189061 - RE
Responding to: Raghunathan's previous message
Raghu,

If I remember correctly, a DC motor's speed is voltage dependent. So you slowly ramp up the voltage until you reach the speed that you desire. The startup current is defined as I = (load Torque)x(Torque constant for the motor) + (motor no load startup current).
The manufacturer should be able to give you the Torque constant and the no load startup current(stall current).


List of 11 messages in thread
TopicAuthorDate
Starting a 110V DC / 10KW motor      Raghunathan      01/03/13 05:10      
   RE        Jacob Boyce      01/03/13 06:44      
      Back to basics !      Raghunathan      01/03/13 21:59      
   Soft starting        Mahmood Elnasser      01/03/13 09:53      
      Good ideas..      Raghunathan      01/03/13 22:03      
         more       Mahmood Elnasser      01/04/13 05:20      
            IGBTs and money      Erik Malund      01/04/13 07:42      
               A very practical tip. Thanks.      Raghunathan      01/04/13 09:16      
               110VDC      Mahmood Elnasser      01/04/13 11:20      
            All on the module !      Raghunathan      01/04/13 09:16      
               COMPLETE saturation      Erik Malund      01/04/13 13:27      

Back to Subject List