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.
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)
Shoon said:
6 years ago
1min = 60sec.
If 400rps then 400/60 rpm.
As from small quantities to bigger quantities we do division, from bigger quantities to small we do multiplication.
Kindly explain it.
If 400rps then 400/60 rpm.
As from small quantities to bigger quantities we do division, from bigger quantities to small we do multiplication.
Kindly explain it.
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.
AMARENDRA DASH said:
1 decade ago
We know N = 120F/P.
SO F = N*P/120.
Here n = 400rps(revolution per second).
n = 400*60rpm(rps=Hz=60*rpm).
Thus,
F = 400*60*2/120.
F = 400Hz answer.
SO F = N*P/120.
Here n = 400rps(revolution per second).
n = 400*60rpm(rps=Hz=60*rpm).
Thus,
F = 400*60*2/120.
F = 400Hz answer.
Ahmed said:
1 decade ago
n= 120*f/p.
n : rapid per minute.
f: frequency.
p:no of poles.
n=400*60(rps) =24000(rpm).
f=n(rpm)*p/120.
f=24000*2/120.
f=400 HZ.
n : rapid per minute.
f: frequency.
p:no of poles.
n=400*60(rps) =24000(rpm).
f=n(rpm)*p/120.
f=24000*2/120.
f=400 HZ.
Girishgowda said:
1 decade ago
p = 2.
n = 400.
rps its converted in to rpm its value is 6.66 rpm.
Then f = pn/120.
= 2*6.66/120.
= 0.111 hz.
n = 400.
rps its converted in to rpm its value is 6.66 rpm.
Then f = pn/120.
= 2*6.66/120.
= 0.111 hz.
Sandeep said:
1 decade ago
P=2
N= 400 r/s (rps )= 400 r/(m/60)=400*60 r/m
=400*60 rpm
we know f = N P /120= 400*60*2/120=400 Hz.
N= 400 r/s (rps )= 400 r/(m/60)=400*60 r/m
=400*60 rpm
we know f = N P /120= 400*60*2/120=400 Hz.
Aurangzaib said:
5 years ago
Actually, rps is rev/sec so to convert it to rpm =rev/sec/60 that's why we multiply with 60 directly.
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)
Ribka A said:
1 decade ago
In three phase generators we will consider the angle between three coils should be 120 degrees.
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