Running DC motor at higher than rated speeds

by zaman999
Tags: dc motor speed, motor, rated, running, speeds
zaman999 is offline
Nov23-13, 08:02 AM
P: 6
I had this power electronics lab experiment where we control the speed of a separately excited dc motor using thyristors. The dc motor is rated at 1500 RPM but we do get readings where the speed is above 2500 RPM. How is that possible?

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Baluncore is offline
Nov23-13, 01:13 PM
P: 1,309
Without a load a DC motor will run at a speed determined by the average voltage provided. The motor speed specification also specified voltage and load. You have changed the voltage or load from those specified for that RPM.

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