timelessbeing
- Jun 7, 2011
- 15
- Joined
- Jun 7, 2011
- Messages
- 15
What is the difference between these transformers?
Np=1, Ns=10
Np=1,000,Ns=10,000
Both have turns ratio = 1:10
Np=1, Ns=10
Np=1,000,Ns=10,000
Both have turns ratio = 1:10
Allow me to rephrase...
but you never see transformers with one winding. Why?
If you look at transformers in ordinary household appliances, lets say a simple halogen Ikea lamp, the turns number in the hundreds. If it were simply a matter of achieving the desired ratio, surely the transformer would have fewer of them.
daddles, my guess is that number of turns in the straight conductor don't play a significant role in the transformer calculations.
you never see transformers with one winding.
you still have to provide the appropriate load across the 120 (240) VAC primary side to that it doesnt look like a short circuit and promptly burn out. Hence still lots and lots of turns are needed.
OK that makes sense. How many turns do you have to use? This Ikea lamp uses 120VAC mains to power a 12V 20W halogen bulb.
Did I get that right?
Did I get that right?
Ampacity means current carrying capacity, does it not?
Yes it does, in the US at least. I have engineering documents that use that term from 30-40 years ago and, I believe, it has been part of the NEC for quite a while.Ampacity means current carrying capacity, does it not?
Yes it does, in the US at least. I have engineering documents that use that term from 30-40 years ago and, I believe, it has been part of the NEC for quite a while.