Kollmorgen used to have the problem you refer to with their printed motors.
They had great acceleration characteristics, but without a substantial
thermal mass in the rotor, could not sustain significant overdrive without
damage.
Regards,
Steve.
At 08:27 PM 8/3/99 +0100, you wrote:
>O'K for short time intervals and small systems. One of the problems with a
>large sytem consuming power on this scale is than it is dangerous to assume
>that you know the peak demand well from the study of relatively small samples.
>
>I designed some air gapped, iron cored power frequency inductors using your
>principle many years ago, I have never seen similar in print. However,
>physical inductors corresponded to calculations well. One is still in use
>in my
>arc welder.
>
>Best wishes
>
>Adrian
>
>"S. Weir" wrote:
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