Robert Bruninga via EV wrote:
I was talking about 240V split phase which is the standard in the USA. ANd
split phase is the same as two-phase (180 degrees apart).
No; split phase is not the same as 2-phase.
Split phase is just single-phase 240v with a center-tap. You get 120v
each side of the center tap, and 240v across the ends. It usually comes
from a transformer with a center tap.
Two-phase has two equal voltages that are phase-shifted 90 deg. from
each other. If they each have a common neutral and you have 120v between
neutral and each phase, then you get 120 x sqrt(2) = 170v between the
ends (not 240v).
Lee Hart
--
A designer knows he has achieved perfection not when there is
nothing left to add, but when there is nothing left to take away.
-- Antoine de Saint Exupery
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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