Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 14)
14.
The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 
load. The turns ratio is 3:1. What is the secondary voltage?
load. The turns ratio is 3:1. What is the secondary voltage?Discussion:
27 comments Page 1 of 3.
NITESH said:
1 decade ago
v1=60v
n2/n1=1/3
v2=?
v2/v1=n2/n1
v2=60/3
=20v
n2/n1=1/3
v2=?
v2/v1=n2/n1
v2=60/3
=20v
Rajasekhar said:
1 decade ago
Doubt:
v1=60v
n2/n1=3/1 ?
Can you please explain?
v1=60v
n2/n1=3/1 ?
Can you please explain?
Gopi said:
1 decade ago
v1=60v
n2/n1=v2/v1
1/3=v2/60
.3333=v2/60
v2=.3333*60
v2=19.999
n2/n1=v2/v1
1/3=v2/60
.3333=v2/60
v2=.3333*60
v2=19.999
Pranay said:
1 decade ago
Here,
Turn ratio = 3:1 means
n1 = 3, n2 = 1,
v1 = 60
Turn ratio = k = 3:1 = n1/n2 = v1/v2
so, v1 is 3 times higher than v2
v1 is 60 then v2 must be 20 = 60/3.
Turn ratio = 3:1 means
n1 = 3, n2 = 1,
v1 = 60
Turn ratio = k = 3:1 = n1/n2 = v1/v2
so, v1 is 3 times higher than v2
v1 is 60 then v2 must be 20 = 60/3.
Rizwan B said:
1 decade ago
k=n2/n1.
n2=1.
n1=3.
Then v2/v1=n2/n1.
v2/60=1/3.
3v2=60.
v2=60/3.
v2=20.
n2=1.
n1=3.
Then v2/v1=n2/n1.
v2/60=1/3.
3v2=60.
v2=60/3.
v2=20.
ROHINTHH said:
1 decade ago
How to decide that whether the turns ratio given is N2/N1 or N1/N2?
I thought N2/N1 = 3/1.
SO N2/N1 = E2/E1 = 3/1.
Hence E2 = 3*60 = 180V.
Please explain?
I thought N2/N1 = 3/1.
SO N2/N1 = E2/E1 = 3/1.
Hence E2 = 3*60 = 180V.
Please explain?
Sriram said:
1 decade ago
@Rohinthh.
If the transformer ratio is given as 3:1 then it is n1:n2,
If the transformer Ratio is 3 or any other no. given as single digit then we have to consider n2:n1.
I think you're clear with my suggestion, have a wonderful day.
If the transformer ratio is given as 3:1 then it is n1:n2,
If the transformer Ratio is 3 or any other no. given as single digit then we have to consider n2:n1.
I think you're clear with my suggestion, have a wonderful day.
K sravanthi said:
1 decade ago
If the transformer Ratio is 3 or any other numbere given as single digit then we have to consider n2:n1.
Mukesh said:
1 decade ago
Since turn ratio is 3:1, means k>1 so this is step down transformer. Primary has 60v so the secondary should low voltage than primary that's why 60/30 = 20v.
Kalyan said:
1 decade ago
Turn ratio was given as 3:1 that means n2=3 and n1= 1 and I agree to @Rohinthh.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers