Autotransformer Turn Ratio

Discussion in 'Power Electronics' started by airplane100000, Sep 7, 2016.

1. airplane100000 Thread Starter Member

Aug 2, 2016
40
0

What is the turn ratio of this component (1-2:2-3)?
Is it 8.7? - 1/76 = (1/n)^2

2. AlbertHall Well-Known Member

Jun 4, 2014
1,430
272
That will be a reasonably close approximation. Note that the inductances have a 10% tolerance.

3. Dodgydave Distinguished Member

Jun 22, 2012
4,794
708
The resistance ratios are 1:28 roughly....

4. airplane100000 Thread Starter Member

Aug 2, 2016
40
0
Yes...
So which is it?

5. AlbertHall Well-Known Member

Jun 4, 2014
1,430
272
I would expect the inductance ratios to be the better estimate. The resistances depend on the wire diameter used whereas the inductance doesn't.

6. Dodgydave Distinguished Member

Jun 22, 2012
4,794
708
Well i would input a low voltage ac into pins 2-3 and measure it on 1-2 to see the difference in ratios.

7. airplane100000 Thread Starter Member

Aug 2, 2016
40
0
Thanks...
You wanna buy it and send it to me?