Why in india freq. is 50HZ & in U.S.A. it is 60HZ?
- 2 Answers
- 5956 Views
- MacLellan, I also Faced
- E-Mail Answers
Answer Posted / m.kumaran
Normally the formula for speed is N=120f/P
N=Speed in RPM
f=Frequency
P=No of poles
Example
f=50Hz
P=2
so N=3000 RPM.but we use 4 pole machine we get 1500 RPM
The indian machines are manufactured only 2&4 poles only so
we get 50Hz frequency. but most of indian power generating
stations are follow this technique. but we want to change
this method total methods of generating station will de
changed.
| Is This Answer Correct ? | 4 Yes | 5 No |
Post New Answer View All Answers
Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp
Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?
Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?
sir plz send some previous year questions of jspl.
What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?
Why is water motor not taking the pressure? what is the problem?
Details about Flux Compensated magnetic Amplifer starter for motors
Which power will flow first if we switch on a motor Active or Reactive? How?
11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter
How many sprinklers should be in one pipe line?
Electronic circuit
could you measure current in parallel?
Define open loop control system.
Why is remote backup preferred to local backup?
What do you understand by oldham's coupling ?
