I believe that AC systems must be grounded, if only just so lightning
protection works.
boB
On 2/3/2013 7:31 PM, Carl Emerson wrote:
Jay,
One leg is called Phase here, this is the hot leg.
The other is Neutral and is bonded to ground at every main
distribution board.
In theory one cannot get bitten coming into contact with the Neutral
but this can happen if there is poor earthing, or a poor connection on
the Neutral return.
Regards
Carl Emerson
Hi Carl,
thanks and yes, I think its why they only did a 120v version here.
Another question for you there.
Its my understanding that neither of your legs is bonded to ground
correct?
jay
peltz power
On Feb 3, 2013, at 4:22 PM, Carl Emerson wrote:
Hi Jay,
Yes you have described our grid waveform correctly.
It is strange to me that they call yours 240V, the rationale used to
describe yours and mine are different I guess.
Your grid seems to present less volts and more current.
If this is correct then I am guessing that the transformers used in
the units here will not work for you.
Regards
Carl Emerson
Hi Carl,
Your 230vac is a single wave form right?
RMS peak to zero crossing of 230v
vs our
240vac which is 2 phase wave form
RMS peak to zero crossing of 120v
Have I got this right?
thanks,
jay
peltz power
On Feb 2, 2013, at 6:56 PM, boB wrote:
Carl, NZ is 240 VAC right ? 240 VAC 2 wire ?
I think that the problem may have to do with leg to leg voltage cross
regulation
imbalance in 120/240 3 wire systems.
boB
On 2/2/2013 3:23 PM, Carl Emerson wrote:
Goodness knows why 240V Sunny Island's are unavailable in the US...
We have been installing these in NZ for years !!!
Regards
Carl Emerson
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