- Location
- Massachusetts
No it is not supposition Tony, it is what we use here.
Single phase from three phase transformer
- Thread starter storeytime
- Start date
- Status
No it is not supposition Tony, it is what we use here.
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
So the OP is looking for a new transformer based on something you haven’t seen?
Dry type don’t have to be monoblock so coil endings are most likely to be accessible to isolate one leg of the primary.
Believe it or not, the rest of the world use transformers, they just hum a different tune.
Last edited:
- Location
- Massachusetts
Tony, the OP is in Texas not the UK, I have a pretty firm grip on what the transformer they have is like.
Regardless of electricity working the same on both sides of the ocean we use different equipment than you do.
This picture likely represents what the OP has.
Could it be something else? Sure, maybe a 1% chance if it was a special order.
- Location
- Massachusetts
I believe it.
But the differences in the equipment used is why I would not go to an English forum and tell them how to wire it based on my American experiances.
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
I believe it.
But the differences in the equipment used is why I would not go to an English forum and tell them how to wire it based on my American experiances.
Since I left engineering college many years ago I can’t think of anything major that has changed transformer construction.
As for differing countries, as senior moderator of a UK site I would welcome you to join in discussions.
You have codes, we have regulations, neither have an effect on the basic laws of physics. That is unless you know different.
- Location
- Massachusetts
Tony you are being silly.
I never suggested that laws of physics work differently from here to there only that the equipment and codes are different.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
No the OP said they bought a transformer off of a material list so it is not likely a special order unit.
The OP went on to ask what he could do about with the incorrect transformer to make it work. He was not asking about purchasing a special transformer.
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
Drawing to follow
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
A half apology, so don’t get used to it.
Rearranging the primary windings will work but it involves swapping the start and finish of a primary winding.
The colour at each end of the winding represents the start. (Sorry for the horrible yellow colour but with my eyesight I can’t see yellow on a white screen.)
Given that the OP is trying to get his backside out of the fire it may help.
Rearranging the primary windings will work but it involves swapping the start and finish of a primary winding.
The colour at each end of the winding represents the start. (Sorry for the horrible yellow colour but with my eyesight I can’t see yellow on a white screen.)
Given that the OP is trying to get his backside out of the fire it may help.
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
You should try 60Hz power.
You’re not dragging me in to that argument……..
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
That will require the OP to field modify the welded aluminum winding connections of his transformer, thereby voiding its warranty and making it likely to be rejected by the AHJ.
I agree with Jim...If you refer to the picture of a common small tranny's guts in post #23 (link), you'll see one end of each primary winding conductor is brought and welded to a terminal bus. The other end of each winding is actually doesn't leave the winding, but voltage taps near that end of the windings are visible and you can see how they are connected...
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
OK, it’s simple enough, the OP goes and spends more $XXX when a situation and reputation could be rescued.
It’s no skin off my nose whatever he does.
It’s no skin off my nose whatever he does.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
It would be easier to convert the UK power grid to 60Hz then it would be to convert the US power grid to 50Hz.
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
What do we do with all the other areas? Europe, Africa, India, China, Russia, etc. You’re the odd bods as far as frequency is concerned.
Japan really is the odd man out with both 50Hz and 60Hz
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Tony S
Senior Member
- Location
- Resting under the Major Oak UK
We’ll just slow you down, it’s easier.
You’ll need to catch up with our technology first though.
You’ll need to catch up with our technology first though.
- Location
- Massachusetts
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
I disagree, every power transformer in North America will loose something like 18% of its KVA rating, not to mention the primary voltage may need to be reduced to prevent saturation. On the other hand the UK will actually see an increase in KVA.
- Status