4 Jan
2022
4 Jan
'22
8:07 p.m.
I mean if you want to add a transformer to it you can do anything to want
with voltages. It doesn't provide you 120V from the service transformer.
Corner grounded Delta gives you a grounded 3 phase service (safer than
ungrounded) with one less wire than high-leg delta (3 instead of 4), making
it cheaper when the wiring was the expensive part.
Patrick Finnegan
On Tue, Jan 4, 2022, 22:16 Grant Taylor via cctalk <cctalk at classiccmp.org>
wrote:
On 1/4/22 7:43 PM, Patrick Finnegan via cctalk wrote:
It's the even more obscure corner-grounded
delta, which requires even
more care and can't provide 120V power, since the phase to ground
voltage is 240V.
Why couldn't 120V be derived from either of the 240V phase and the
grounded corner via a 2:1 transformer?
I'm not sure how to get the two opposing 120 legs, or if they are
strictly required in this instance. I would wonder if it would be
possible to ground the center tap on the secondary side of the 2:1
transformer mentioned above or not.
--
Grant. . . .
unix || die