On 2010-05-28, Robert Swinney wrote:
Don sez:

Not quite. The balance is a function of the load. Tune it
for proper balance with one machine (load) and if you turn on a
different one with a different horsepower, the balance will be off a
bit, as will it be when you turn on a second machine while the first is
running. (Each extra machine adds to the rotary transformer capability,
but does not add to the tuning capacitance.)

Well, it depends on how sensitive to additional "load" your RPC is. Tuning, (actually power factor
correction) in a well designed RPC is quite broad and is proportional to the ratio of load to idler
motor HP. In a good RPC voltage regulation over minor load variations is no problem. Don's
implication is correct; balance is a function of load. Good RPCs are designed to operate with a
fairly constant load to idler ratio. That is reason is it good practice to have a 1.5 to 2, or
greater, ratio.

My own converter gives decent voltages (close to one another) both
with and without load. I did test it.

i