Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 19)
19.
To step 120 V ac up to 900 V ac, the turns ratio must be
Discussion:
29 comments Page 2 of 3.
Amarjyoti Sarmah said:
1 decade ago
Is turns ratio different for step up and step down transformer?
N2/N1 is transformation ratio while,
N1/N2 is turns ratio, Is not it right. I am very much confused. Please help me?
N2/N1 is transformation ratio while,
N1/N2 is turns ratio, Is not it right. I am very much confused. Please help me?
Naveed said:
1 decade ago
The ratio of a four-to-one step-down transformer is written as 4:1.The ratio of a one-to-four step-up transformer should be written as 1:4. Notice in the two ratios that the value of the primary winding is always stated first.
Rajan India said:
1 decade ago
Turns ratio k = v2/v1.
Here, k = Turns ratio of transformer.
v2 = Secondary voltage of transformer.
v1 = Primary voltage of transformer.
Here, k = Turns ratio of transformer.
v2 = Secondary voltage of transformer.
v1 = Primary voltage of transformer.
Vicky said:
10 years ago
Turns ratio means ratio of high voltage side to low voltage side turns.
Stuti kushwaha said:
10 years ago
Please help me that where we can use n1/n2 and where we can use n2/n1?
Mehaboob Nadaf said:
9 years ago
N2/N1 = V2/V1.
900/120 = K=7.5.
900/120 = K=7.5.
San said:
9 years ago
Is it same for V2/V1, R2/R1 & I1/I2?
Raghuvamsi said:
9 years ago
Yes, @Ahmed.
The answer should be 0.13.
Here the problem is asking turns ratio, not transformation ratio.
The answer should be 0.13.
Here the problem is asking turns ratio, not transformation ratio.
Ramesh said:
9 years ago
Finally, what is the correct answer?
Ajit said:
9 years ago
Yes, I agree the answer is 0.13.
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