On Oct 28, 7:00*pm, JIMMIE wrote:
On Oct 28, 5:43*pm, wrote:

I'm not counting electrons twice. * Neither is Bud. * I take 200 amps
worth of 120Volt eqpt and plug it into outlets that are driven off of
one hot leg of the 240Volt 200 amp service. * * I take 200 amps worth
of 120volt eqpt and plug it into outlets that are driven off the
second hot leg. * * I am now supporting 400 amps of 120volt loads.
It doesn't get any more basic than that. * I agree the current is
flowing in series and is actually a 240Volt total load and the service
is running 200 amps. *That is what I have been saying all along when
others were saying that you have conductors in parallel, a second
conductor carrying more current, etc. * But from any reasonable
perspective, if I can plug 400 amps worth of 120volt eqpt into the
house, then I am in fact driving those loads.

If the homeowner asked you how many amps worth of 120Volt eqpt is the
max that the 200 amp service can support, what would your answer be?- Hide quoted text -

- Show quoted text -

200 AMPS, *

Wrong.



200 amps x 240 volts also equals 48000 watts. I suggest you
post this to one of the engineering groups. This is a classic question
that has been in electical course for years. Ive been thru three such
courses in the last 22 years and havent missed the question yet. One
course was for power distribution, one was for HVAC and the other was
for power generation.


And I have a degree in electrical engineering from MIT and I say you
are nuts. The homeowner brings home twenty 20 amp 120 volt
heaters. He connects half of them to outlets on one side of the
service. He connects half of them to outlets on the other side of
the service. He now is unquestionably supporting 400 amps of
120volt load. It doesnt' get any simpler than that. In fact, I
think everyone in the entire thread except you would agree with the
above. Sure it is because it works as a series circuit and appears
at the service point as a 240volt, 200 amp load. Everyone knows
that. But as far as the loads go, you do have 400 amps going
through them, 120V * 400a = 48KVA of power

Accoridng to your answer above, what would the homeowner do? If he
listened to your answer, the homeowner could only buy and connect ten
of those 20 amp heaters, because he can only support 200 amps at
120volts.

And aren't you the same Jimmie that posted this back in the beginning
of the thread?

"Assume you are using one leg at 200 amps, that is all the breaker
will handle that is 120 volts X 200 amps or 24,000 watts. If you
again max out the breaker with 200 amps flowing on both sides that is
240 volts x 200 amps or 48000 watts. Thats the same as 120 X 400
amps.
I think the OP wanted to know if he could get a total of 400 amps at
120VAC. Lets rephrase that to could he power 400 1 amp 120 VAC loads
from this box under residential conditions. The answer is yes "

Yet, now you say it aint' so.




And yes you are counting electrons twice. And your perspective is
wrong because the loads are not across 120, there return path is not
through the neutral. You have 2 120vac loads connected in series
across 240 vac.


The homeowner can bring home 400 amps worth of 120volt eqpt and plug
it in and it works. Any place in the universe, that means the
service is supporting 400 amps of 120volt load.

In fact, that is exactly what you said in your own post, which I
showed above.