Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 5)
5.
A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is
Discussion:
94 comments Page 3 of 10.
Chaitanya Patel said:
10 years ago
Transformation Ratio = E2/E1 = v2/v1 = N2/N1 = k.
Turn Ratio = E1/E2 = V1/v2 = N1/N2 = 1/k.
So, Turn Ratio 1/k = N1/N2 = 400/2000 = 0.2.
So , the answer should be 0.2.
Turn Ratio = E1/E2 = V1/v2 = N1/N2 = 1/k.
So, Turn Ratio 1/k = N1/N2 = 400/2000 = 0.2.
So , the answer should be 0.2.
Hyacinth salim said:
10 years ago
Dear,
Turns ratio n = n1/n2, so answer is 0.2.
But, transformation ratio, voltage ration k = v2/v1 proportional.
Step up transformer - turns ratio less than 1.
Step down trfr - turns ratio greater than 1.
Matching transformer - turns ratio = 1.
But voltage transformation ratio is the other way step up - greater than 1, step down - less than 1.
Hope above is clear.
Turns ratio n = n1/n2, so answer is 0.2.
But, transformation ratio, voltage ration k = v2/v1 proportional.
Step up transformer - turns ratio less than 1.
Step down trfr - turns ratio greater than 1.
Matching transformer - turns ratio = 1.
But voltage transformation ratio is the other way step up - greater than 1, step down - less than 1.
Hope above is clear.
Venky said:
10 years ago
Definition of turn ratio is N1/N2.
SHARAD PAWAR said:
10 years ago
Definition of the turns ratio of transformer is n1/n2 and not n2/n2.
So turns ratio is n1/n2 = 400/2000 = 1/5 = 0.2.
So turns ratio is n1/n2 = 400/2000 = 1/5 = 0.2.
MUHAMMAD MUNEER said:
10 years ago
This answer is wrong because for step-up transformer turn ratio a<1, for step-down transformer turn ratio a>1. The turn ratio is N1/N2, answer is 0.2.
R D VASHISHTA said:
10 years ago
Transformer ratio = K = N2/N1.
K = 2000%400 = 5.
K = 2000%400 = 5.
Sachin sharma said:
1 decade ago
As we know that the transformer turn ratio N2/N1 so that 2000/400 = 5 so answer is C correct.
Mayur said:
1 decade ago
I think the answer must be 0.2 as we N1=400 and N2=2000 so the ration should be 1/5 not 5/1.
Sai said:
8 years ago
The Answer is 0.2.
Nithin said:
4 years ago
Here, it's asked for turns ratio, not transformation ratio.
Turns ratio is N1/N2.
2/N1 is the transformation ratio.
Turns ratio is N1/N2.
2/N1 is the transformation ratio.
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