[geeks] D'OH!

Greg A. Woods woods at weird.com
Fri Feb 1 18:31:05 CST 2002


[ On Friday, February 1, 2002 at 15:24:18 (-0500), Dave McGuire wrote: ]
> Subject: Re: [geeks] D'OH!
>
>   In this way, a 110V circuit can come off of one breaker, or you can
> put in a two-pole "ganged" breaker which connects to both "hot1" and
> "hot2", giving you a two-phase 220V circuit for an air conditioner,

"SINGLE PHASE"!!!!!!!

> electric appliances, Cray, etc.  And if you populate it with 110V
> circuits going down without skipping positions, you wind up evenly
> distributing the load across the two phases.

two halves of a CENTRE-TAPPED SINGLE PHASE transformer!!!!!!

(The evenness of the load distribution depends more on how the ciruits
are loaded than how they are plugged into the bus.  You could perfectly
fill a centre-tapped 220VAC panel and still have almost all the normal
load on one half of the transformer's secondry winding.)

-- 
								Greg A. Woods

+1 416 218-0098;  <gwoods at acm.org>;  <g.a.woods at ieee.org>;  <woods at robohack.ca>
Planix, Inc. <woods at planix.com>; VE3TCP; Secrets of the Weird <woods at weird.com>



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