Ignoramus9179 wrote:

I built a self starting phase converter with a 10 HP idler and two 92
mF capacitors. It works great and starts in under 2 seconds.

I also have a very similar looking Century 7.5HP motor. They 10 HP and
7.5 HP look similar.

This 7.5 HP motor would NOT spin up from two other capacitors. If I
wire it with three capacitors (I have 5 total, 2 already used in the
main phase converter), it would spin up, but it takes it about 5
seconds to do so and it warms up appreciably. What gives?

Another tidbit is that the 7.5 HP motor starts just fine from 3 phase
output of my phase converter. I do not think that it is a bad
motor. Maybe some caps out of these three are in bad condition.

i

The inductance of the winding is different. The motor works.
Different caps than those used would work.

That is why the caps are approx and to adjust...

Remember, "we" are finding a way to get around the normal ways.
Different motors don't have to have the same specs, just have the power
and voltage ratings listed on the plate.

Martin

--
Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder

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