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 6 of 10.
R D VASHISHTA said:
10 years ago
Transformer ratio = K = N2/N1.
K = 2000%400 = 5.
K = 2000%400 = 5.
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.
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.
Venky said:
10 years ago
Definition of turn ratio is N1/N2.
Hyacinth salim said:
9 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.
Chaitanya Patel said:
9 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.
Arjun Roy said:
9 years ago
As per my knowledge turn ratio= n1/n2.
Transformation ratio = n2/n1.
So, as per formula the ans will be 0.2.
Transformation ratio = n2/n1.
So, as per formula the ans will be 0.2.
Kirthi Arora said:
9 years ago
Turn ratio is define as ratio of turns of wire in the primary winding to its secondary winding. So Turn ratio = Np/Ns => 400/2000 = 0.2.
Izaz said:
9 years ago
Turns ratio (a) = N1/N2.
Transformation ratio (k) = V2/V1 =N2/N1 = I1/I2.
So answer should be 0.2.
Please don't interchange d meaning of. Tuns ratio and transformation ratio.
Transformation ratio (k) = V2/V1 =N2/N1 = I1/I2.
So answer should be 0.2.
Please don't interchange d meaning of. Tuns ratio and transformation ratio.
Chilufya said:
9 years ago
turn ratio = n1/n2
n1 = 400,
n2 = 2000,
.'. 400/2000 = 0.2.
n1 = 400,
n2 = 2000,
.'. 400/2000 = 0.2.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers