[Elecraft] KPA1500 AC Mains wire colours

[Charlie T]

AAARRRGHH, I almost flunked out of engineering school on all that Delta/Wye
and conversion stuff !
Curiously, I sailed through the 1st two quarters where DC circuits & Ohm's
law was taught.
Hey, I had my ham license....I KNEW all this stuff already...HAH.  3Ø AC
theory just about did me in.

To this day, I don't believe I have EVER had the need for a Laplace
transform though.

73, Charlie k3ICH






-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Phil Kane
Sent: Sunday, May 19, 2019 2:14 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA1500 AC Mains wire colours

On 5/19/2019 6:04 AM, hawley, charles j jr wrote:

> BTW, I think if instead of saying "phases", it would be less confusing 
> to say two "legs" plus neutral for the single phase 240 vac coming 
> into the house.

As an electrical engineer whose major was "power" (back when it was actually
taught) I would agree wholeheartedly.  The "2 hot plus neutral"
is most often a single phase of a three-phase delta 240V secondary with
tapped center as "neutral".  It could not be two phases of a wye because the
voltage from phase to phase would then be 208V for 120V phase-to-neutral.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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