One of the top Google results:
https://www.engineeringradio.us/blog/2012/02/the-open-delta-three-phase-ser…
Really really, there's only two pigs on the pole. And yet, delta power, though at a
lower rating than transformer nameplate (vs. if you had three).
Thanks,
Jonathan
??????? Original Message ???????
On Tuesday, January 4th, 2022 at 14:56, Grant Taylor via cctalk <cctalk at
classiccmp.org> wrote:
On 1/4/22 8:52 AM, Jonathan Chapman via cctalk wrote:
Indeed. This is not corner-grounded delta. Once
you figure out open
delta, look at dog-leg.
I did some brief reading on open delta and now think that it requires
three lines, independent of ground. So I fail to see how open delta
would be any benefit save for a simpler transformer (fewer coils) or
fewer transformers. It seems as if you would have the same line and
insulator cost as more common (closed) delta.
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Grant. . . .
unix || die