Electrical Engineering - Alternating Current and Voltage - Discussion
Discussion Forum : Alternating Current and Voltage - General Questions (Q.No. 2)
2.
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is
Discussion:
38 comments Page 1 of 4.
Trupti said:
5 years ago
rps=400*60=24000=Ns.
P = 2
Ns = 120f/p.
120*f/Ns*p.
f = Ns*p/120,
f = 24000*2/120,
f = 400.
P = 2
Ns = 120f/p.
120*f/Ns*p.
f = Ns*p/120,
f = 24000*2/120,
f = 400.
(3)
Jek Culabres said:
4 years ago
Frequency = 1 cycles/second.
1 cycles/second = 1 Hertz.
Cycles is the same revolution or rotation.
1 cycles/second = 1 Hertz.
Cycles is the same revolution or rotation.
(1)
Jansi said:
10 years ago
Here given data is:
No. of poles = 2;
Speed (N) = 400 rps;
Usually speed is calculated in rpm. So here we convert 400 rps (revolution per second) in terms of rpm (revolutions per minute).
As 1 min = 60 sec; we multiply 400x60 rpm;
As we know N = 120f/p.
f = np/120;
f = 400x60x2/120.
f = 400 hz.
So hope no one has any doubts regarding this explanation.
No. of poles = 2;
Speed (N) = 400 rps;
Usually speed is calculated in rpm. So here we convert 400 rps (revolution per second) in terms of rpm (revolutions per minute).
As 1 min = 60 sec; we multiply 400x60 rpm;
As we know N = 120f/p.
f = np/120;
f = 400x60x2/120.
f = 400 hz.
So hope no one has any doubts regarding this explanation.
(1)
Feroz khan said:
7 years ago
1rpm=60rps.
so 1rps 1/60 rpm and,
400rps=400 * 1/60 rps.
I think the answer is wrong @Kiran.
so 1rps 1/60 rpm and,
400rps=400 * 1/60 rps.
I think the answer is wrong @Kiran.
(1)
Kalai sasi said:
10 years ago
Its a number of poles.
Mrityunjay said:
1 decade ago
Please any one tell from where 2 is came?
Rakshith said:
9 years ago
As we all know,
Ns = ( (120 * f) /p); Here Ns is in rpm. Therefore,
Ns = Ns/60 rps.
So,
Ns = ((2 * f)/p),
And f = ((p * ns)/2),
f = 2 * 400/2,
f = 400Hz.
Ns = ( (120 * f) /p); Here Ns is in rpm. Therefore,
Ns = Ns/60 rps.
So,
Ns = ((2 * f)/p),
And f = ((p * ns)/2),
f = 2 * 400/2,
f = 400Hz.
Hassan said:
9 years ago
How did you guys get that 120?
Fatima said:
9 years ago
@Hassan.
Formula contains Ns syncronous speed ,Ns = (( 120 * f ) /p).
Formula contains Ns syncronous speed ,Ns = (( 120 * f ) /p).
Bhanu said:
9 years ago
Great job @Jansi.
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