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Posted by on October 27, 2009, 8:34 pm
On Tue, 27 Oct 2009 08:27:24 -0700 (PDT), in alt.home.repair,
trader4@optonline.net wrote:
>That was precisely my point. That to support a 400 amp 120V load,
>the load must be perfectly balanced. And that is because only a max
>of 200 amps is flowing in the service cable and the 400 amp, 120V load
>must appear as two 200 amp, 120V loads in SERIES.
Two 200A 120V loads in series makes a 200A 240V load.
>It's a very basic and simple electrical question as to how many amps
>are flowing in that 200 amp service cable and it's 200 amps. You
>could support all kinds of loads of varying voltages off it, including
>400 amps at 120V, provided the load is perfectly balanced. I could
The only way you can get 400A out of a 200A service is with a step-down
transformer.
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Posted by on October 27, 2009, 8:36 pm
On Tue, 27 Oct 2009 08:27:24 -0700 (PDT), in alt.home.repair,
trader4@optonline.net wrote:
>That was precisely my point. That to support a 400 amp 120V load,
>the load must be perfectly balanced. And that is because only a max
>of 200 amps is flowing in the service cable and the 400 amp, 120V load
>must appear as two 200 amp, 120V loads in SERIES.
Two 200A 120V loads in series makes a 200A 240V load.
>It's a very basic and simple electrical question as to how many amps
>are flowing in that 200 amp service cable and it's 200 amps. You
>could support all kinds of loads of varying voltages off it, including
>400 amps at 120V, provided the load is perfectly balanced. I could
The only way you can get 400A out of a 200A service is with a step-down
transformer.
On Tue, 27 Oct 2009 08:27:24 -0700 (PDT), in alt.home.repair,
trader4@optonline.net wrote:
>That was precisely my point. That to support a 400 amp 120V load,
>the load must be perfectly balanced. And that is because only a max
>of 200 amps is flowing in the service cable and the 400 amp, 120V load
>must appear as two 200 amp, 120V loads in SERIES.
Two 200A 120V loads in series makes a 200A 240V load.
>It's a very basic and simple electrical question as to how many amps
>are flowing in that 200 amp service cable and it's 200 amps. You
>could support all kinds of loads of varying voltages off it, including
>400 amps at 120V, provided the load is perfectly balanced. I could
The only way you can get 400A out of a 200A service is with a step-down
transformer.
--
Due to Usenet spam, emailed replies must pass an intelligence test: if
you want me to read your reply, be sure to include this line of text in
your email, but remove this line before sending, otherwise my filters
will delete your email with all due prejudice. Thanks!
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Posted by on October 28, 2009, 5:24 am
On Oct 27, 8:36=A0pm, usenet-659f31de7f953...@asgard.slcc.edu wrote:
> On Tue, 27 Oct 2009 08:27:24 -0700 (PDT), in alt.home.repair,
> trad...@optonline.net wrote:
> >That was precisely my point. =A0 That to support a 400 amp 120V load,
> >the load must be perfectly balanced. =A0 And that is because only a max
> >of 200 amps is flowing in the service cable and the 400 amp, 120V load
> >must appear as two 200 amp, 120V loads in SERIES.
> Two 200A 120V loads in series makes a 200A 240V load.
> >It's a very basic and simple electrical question as to how many amps
> >are flowing in that 200 amp service cable and it's 200 amps. =A0 You
> >could support all kinds of loads of varying voltages off it, including
> >400 amps at 120V, provided the load is perfectly balanced. =A0I could
> The only way you can get 400A out of a 200A service is with a step-down
> transformer.
> On Tue, 27 Oct 2009 08:27:24 -0700 (PDT), in alt.home.repair,
> trad...@optonline.net wrote:
> >That was precisely my point. =A0 That to support a 400 amp 120V load,
> >the load must be perfectly balanced. =A0 And that is because only a max
> >of 200 amps is flowing in the service cable and the 400 amp, 120V load
> >must appear as two 200 amp, 120V loads in SERIES.
> Two 200A 120V loads in series makes a 200A 240V load.
> >It's a very basic and simple electrical question as to how many amps
> >are flowing in that 200 amp service cable and it's 200 amps. =A0 You
> >could support all kinds of loads of varying voltages off it, including
> >400 amps at 120V, provided the load is perfectly balanced. =A0I could
> The only way you can get 400A out of a 200A service is with a step-down
> transformer.
I think we are in agreement, except for perhaps one point.
From your previous post, you clearly agree that you can in fact have
two 120volt, 200 amp loads connected in series across the 240volt
service. That is a perfectly balanced load. You now have 200 amps
flowing in series through each load. In my world that is in fact
"supporting" 400 amps of 120volt load. Lets say I had forty 10 amp,
120volt heaters. I could could clearly put twenty of them between one
leg and neutral and twenty between the other leg and neutral and it
would work. You now have a fully loaded balanced service. There
is zero current flowing in the neutral and 200 amps flowing in the
service. It works because the loads on one side are connected in
series to the loads on the other side.
My whole point all along has been that the actual current in a 200
amps service is limited to 200 amps which clearly you agee with.
And it has nothing to do with "parallel circuits", or power, voltage
or anything else. It looks like the only difference we have is your
definition of "supporting loads" may be stricter than mine.
And I think all of us are still waiting for a simple answer from Doug
as to how many amps are actually flowing in a fully loaded 200 amp
service cable circuit. I've asked that several times now and still
have no answer, despite having fully answered all his questions.
--
> Due to Usenet spam, emailed replies must pass an intelligence test: if
> you want me to read your reply, be sure to include this line of text in
> your email, otherwise my filters
> will delete your email with all due prejudice. =A0Thanks!
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Posted by on October 28, 2009, 11:15 am
On Wed, 28 Oct 2009 02:24:20 -0700 (PDT), in alt.home.repair,
trader4@optonline.net wrote:
>On Oct 27, 8:36=A0pm, usenet-659f31de7f953...@asgard.slcc.edu wrote:
>> The only way you can get 400A out of a 200A service is with a step-down
>> transformer.
>I think we are in agreement, except for perhaps one point.
>From your previous post, you clearly agree that you can in fact have
>two 120volt, 200 amp loads connected in series across the 240volt
>service. That is a perfectly balanced load. You now have 200 amps
>flowing in series through each load. In my world that is in fact
>"supporting" 400 amps of 120volt load.
Your semantics create confusion. In NO CASE can you flow more than 200 amps
through any single load. To say that you have many 120V loads drawing a
total of 400A is WRONG and obscures the fact that two balanced 120V loads is
absolutely identical to a 240V load.
--
Due to Usenet spam, emailed replies must pass an intelligence test: if
you want me to read your reply, be sure to include this line of text in
your email, but remove this line before sending, otherwise my filters
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Posted by on October 28, 2009, 6:25 pm
> In article
> =A0trad...@optonline.net wrote:
> > And I think all of us are still waiting for a simple answer from Doug
> > as to how many amps are actually flowing in a fully loaded 200 amp
> > service cable circuit. =A0 I've asked that several times now and still
> > have no answer, despite having fully answered all his questions.
> You've done a terrific job debating this, and you've explained it better
> than I could have. I bowed out early on for two reasons: One reason was
> that I have limited patience for explaining things to people who
> stubbornly defend their own ignorance. The second reason is that I
> really am not thoroughly conversant in residential wiring schemes. You
> clearly know a lot more about that than I do.
> As far as Doug, I'd trust him to install, upgrade, maintain, or repair
> any wiring in my house, anytime. I consider him one of the groups
> foremost NEC experts, and he clearly knows everything he needs to know
> to work with residential wiring at any level.
> But, and I mean no disrespect for him, it's very clear to me from this
> thread and others, that he doesn't understand electric circuit
> fundamentals at all. His grasp of ohm's law, series vs. parallel vs.
> series-parallel, etc., is shaky at best. You've brought up our pal
> Kirchoff on several occasions, and I'd bet a cup of designer coffee that
> Doug has never heard of the fellow.
> Now, I don't hold ignorance against a man. What does raise an eyebrow is
> when someone who doesn't understand something, declines to acknowledge
> that, puffing up his chest and blundering confidently along, refusing to
> stand corrected. Damn the torpedoes. At this juncture I'm not insisting
> on putting Doug or anyone else in those shoes. Let each man evaluate his
> own stance. But I do have my opinions about it.
> As for the intent of the OP's question, I've yet to really understand
> it, though I'm sure the thread has strayed beyond what he might have
> wanted to know. I've learned some things along the way as I've lurked,
> which is good.
Thanks for the kind words Smitty. :)
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>the load must be perfectly balanced. And that is because only a max
>of 200 amps is flowing in the service cable and the 400 amp, 120V load
>must appear as two 200 amp, 120V loads in SERIES.