Xfmr winding test question

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electricalist said:
If the primary side of a xfmr has 10 windings.
How many windings does the secondary have.
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Sounds like a trick question to me :?

All known from that query (assuming windings means turns) is it is either a low voltage primary or a high frequency PWM type transformer or has one humongous core.
Or it is a mis labeled question, By definition, a transformer PRIMARY has only ONE winding, may have taps for multivoltage or phase shifting on 3 phase, but only one winding per phase, not ten.


The secondary has 10*Vout/Vin turns; or is it 10*Vin/Vout? That determination is left to the student. :lol:


As to how many WINDINGS does the secondary have, that depends on how many different output voltage one wants :eek:
 
Wouldn't the secondary have 10 windings also? Doesn't a 3Ø transformer has 3 windings on the primary and 3 on the secondary? A hypothetical 10 winding transformer would have the same on both sides too. I'm just guessing. :cool:
 
electricalist said:
If the primary side of a xfmr has 10 windings.
How many windings does the secondary have.
Click to expand...

Might help to know what KIND of test this is on - who wrote the test, for what level of student?

Essay test or multiple choice, or just a blank for the answer?
 
infinity said:
Wouldn't the secondary have 10 windings also?
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Not for multiple secondary voltages that share the same flux with a single primary winding.

infinity said:
Doesn't a 3Ø transformer has 3 windings on the primary and 3 on the secondary? A hypothetical 10 winding transformer would have the same on both sides too. I'm just guessing. :cool:
Click to expand...
They are probably meaning just 10 like you guessed.

If they would have meant a single ratio solution it seems like they would have said turns.

I vote yours the best answer until we get more info.
 
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