StickThatInYourPipeAndSmokeIt wrote: (acting like the d-s he accuses others of)
So you think an entire town is fed from not just one substation, but one (coutem 1) SINGLE phase transformer?? get real. [You don't even generally get, two 240 v sources from a singe ph XF anyway, but lets ignore that] But even still, you you can have that much variation, especially if measured at two different times, with different loading, different MV source voltage, and different connection impedance.
jk
Difference between the 2 sides of a residential (split phase, or whatever you want to call the American 115/230 volt system) is NOT uncommon, and is virtually always caused bu a bad neutral connection somewhere.
Yes, it could be, but we're talking about industrial machinery, generally powered by three phase. I have serious doubts that a single phase CNC would contain a $4,000 board when you can buy the machines for that amount of money.
I'm convinced the wiring in question is three phase. The only remaining question is whether it's delta or wye. Considering wye reads 208 volts leg to leg, I'm pretty sure its delta. You?
Harold
He is a retarded troll, and he deliberately refrains from treating the crap he posts at the of the crap he posts as a sig.
To be more specific: hyphen, hyphen, space, newline.
The point is that a measurement of 245V, in and of itself, is not proof of
3-phase delta service. I measure 243V between the two legs of my residential service, and I'm quite sure that it's only single-phase.
What is the voltage at the old location? If it is 240 then there is no issue with anything the electrician did...
How ever, it is most likely originating from a 3 phase source via a single phase xformer.
What's that got to do with the price of oats in China?
I don't know about oats, but I hear the price of rice is up!
Your name Shoppa or Lammeh? Just wondering, because that is a pretty lame outlook.
I figured that you were talking through your ass again.
I'm concerned that the system engineer (was one) didn't know what they were doing - no internal protection - or was the customer to cheap and didn't buy an option.
I hate that kind of option - to lower the price and risk failures.
Power lines have gone from 200 to 245 in my lifetime and will likely continue to inch up.
Remember 100v and then 107 and 110 and 115 and 120 and 125 and 130...
Pushing more power with the same cables - requires higher voltages.
Mart>> >>
Sigh! I'm through wasting my time with you. Take it up with someone that gives a damn.
Harold
It is always from a three phase source. That's the way it comes from the generators, although only one leg is generally used for distribution.
Where I live, one leg of the three phase ran the power for everyone on the hill. When they needed to increase capacity, I paid for the third leg to be installed while they were upgrading the service with the second leg. That's how I ended up with three phase service in my shop, having had the primary lines extended for over two miles.
Harold
Not a lot, but it may have a profound effect on the tariff on peanuts in Brazil.
Harold
That's a matter for opinion and apparently, yours don't count!
That is a matter of fact, though you wouldn't know a fact if it bit you where you talk.
All three legs are generally used for distribution.
That's unusual. All three phases are generally on each pole in populated areas. Some rural areas do have only one phase distributed down each road. It is uncommon to have all three phases run into a home, though.
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