Electrical Engineering - Alternating Current and Voltage - Discussion

Discussion Forum : Alternating Current and Voltage - General Questions (Q.No. 4)
4.
To produce an 800 Hz sine wave, a four-pole generator must be operated at
200 rps
400 rps
800 rps
1,600 rps
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 3 of 3.

Sachin sharma said:   9 years ago
Same calculate Rpm than calculate Rps N = 120f/p = rpm/60 for convert rps.

Mensah Ebenezer said:   4 years ago
What is the general formulae for solving this? Please explain.

Peter said:   3 years ago
Can we also have the answer in rads/sec?

Anyone, explain it please.

Abhishek said:   2 years ago
N = 120f/P.

where N=speed in rpm.
f = frequency.
P = Numbers of poles.
then calculate;
N=?, f = 800Hz, P = 4,
N=120 * 800/4.
= 24,000rpm
then 24,000 convert into rps because options are given in rps that's why we convert into rps.
i.e 24,000/60 = 400rps.
(2)


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