On Fri, 09 Jan 2004 13:04:46 -0800, Jim Stewart wrote:
I don't have a clue as to what a good starting resistance would
be. If I were doing this, I'd probably try 100-200 watts
of light bulb for each resistance to see if it would start.

The cold resistance of the bulbs might be too low to allow
soft start. Something on the order of 20 to 40 ohms sounds
about right for starting a 20 hp wound rotor motor.

Gary