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.
Kazi mosaib said:
3 years ago
V1= 60v,
T=3:1 then we have n1=3 and n2=1.
N2/N1=V2/V1 1/3=V2/60.
So we get V2= 20v.
OR N1/N2=V1/V2 also we get 20v.
T=3:1 then we have n1=3 and n2=1.
N2/N1=V2/V1 1/3=V2/60.
So we get V2= 20v.
OR N1/N2=V1/V2 also we get 20v.
(1)
Priyanka said:
3 years ago
Look at the ratio. It's greater than 1.
It means it's a step-down t/f. So, try both ways. In whichever way the secondary V has a smaller value.
It means it's a step-down t/f. So, try both ways. In whichever way the secondary V has a smaller value.
Dipali Atkale said:
8 years ago
Answer is 180.
Ns/Np=3/1.
Vs=?
Vp=60.
Ns/Np=Vs/Vp=3/1=Vs/60.
Vs=180v.
Ns/Np=3/1.
Vs=?
Vp=60.
Ns/Np=Vs/Vp=3/1=Vs/60.
Vs=180v.
Spoorthi said:
8 years ago
I agree with you @Ajh.
Ajh said:
8 years ago
Turns ratio = n2/n1 = n2:n1. In question it is clearly given turns ratio is 3:1... it mean n2 = 3 & n1 = 1.
Wkt ,
n2 / n1 = v2/v1,
3 / 1 = v2/60,
V2 = 60 * 3 = 180.
Wkt ,
n2 / n1 = v2/v1,
3 / 1 = v2/60,
V2 = 60 * 3 = 180.
Gautam said:
8 years ago
Turns ratio means= N2/N1.
Always remember it,
So answer is 180.
Always remember it,
So answer is 180.
Er.Pratikkumar said:
8 years ago
@All.
Please remember the turns ratio is always N2/N1.
There is no in any book given that if ratio is single digit then N1/N2 & if ratio is like 3:1 then N2/N1.
So, it's N2/N1 that's all.
Please remember the turns ratio is always N2/N1.
There is no in any book given that if ratio is single digit then N1/N2 & if ratio is like 3:1 then N2/N1.
So, it's N2/N1 that's all.
(1)
ANUPAM ANAND said:
9 years ago
Sometimes you take turn ratio means n1/n2 & sometimes you take n2/n1. So tell me that what is actual means of turn ratio?
Aghogho said:
9 years ago
Turns ratio = transformer ratio = N2/N1=3/1.
So solve and get 180.
So solve and get 180.
(1)
Er Sahal said:
9 years ago
V2 / V 1= N2 / N1,
V2 / 60 = 1/3,
V2 * 3 = 60 * 1 (Cross Multiplication),
V2 = 60 / 3,
V2 = 20 V.
V2 / 60 = 1/3,
V2 * 3 = 60 * 1 (Cross Multiplication),
V2 = 60 / 3,
V2 = 20 V.
(1)
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