Electrical Engineering - Transformers - Discussion

Discussion Forum : Transformers - General Questions (Q.No. 2)
2.
The turns ratio required to match an 80 source to a 320 load is
80
20
4
2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
101 comments Page 9 of 11.

Md.mofiz said:   1 decade ago
Why the tranformer rating in kva?
(1)

Viji said:   1 decade ago
sqrt(v1/v2)=r1/r2;
so,k=2

Shajeer said:   1 decade ago
Turns Ratio = sqrt.(r2/r1)
= sqrt (320/80)
= sqrt (4)
= 2

BHABANI SHANKAR BEHERA said:   1 decade ago
I am satisfy with Pruthiwi Raj answer.

Satya said:   1 decade ago
As in a transformer input power = output power i.e. energy is transformed, v1^2 / z1 = v2^2 /z2. hence turns ratio = sqrt(z2/z1)

Soujanya said:   1 decade ago
What kallan said is right and less time consuming as wel as easy to remember.

Relish said:   1 decade ago
Turns ratio=a(n2/n1a)
Therefor R2=a^2*R1
a^2=R2/R1=4
a=2

Raju said:   1 decade ago
Somebody told turns ratio equal to sqrt of the load. Is it correct or not ?

Zeeshan said:   1 decade ago
If the above statment true that turn ratio is equal to load /source then answer comes 2.

Siva said:   1 decade ago
In transformers we use the 50hz, because of how much of load is given it will be operated at the same frequency so that we use the constant.


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