Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / m. ahatesham shaikh
mostly electrical power is generated by running alternators with the help mechanical turbine. and turbines gives best efficiency in the speed range of 3000rpm to 3600rpm.
and frequency of generated electricity is given by
f=((P*N)/120)Hz, P= No. of poles of alternator, N= Speed in rpm.
and mostly 2 poles alternators are used.
therefore ((2*3000/)/120)=50
that's why some countries have selected 50Hz (using 3000rpm) and some 60Hz (3600rpm).
and India has selected 50Hz using 3000rpm.
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
what is plunger and what's the use of it in motor alignment?
"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS
how to select fuse rating for a 3-phase motor ???
What is the permissable nutral current of three phase system as per IS standards?
when elecromagnatic waves are propogated in a wave guide?
can u give me a brief idea about power line carrier communication ??
my b-tech percentage is 50%. what answer will satisfy the hr ?
in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4
What are protections for dty type transformers
Which cable is use for rtcc control panel
How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.
Explain about c.t?
How to findout raw or ups power? its not indicated in socket,
How servo stabilizer works.
why cable i burning without tripping. how can protect led street lights
