Interested to Buy Any Domain ? << Click Here >> for more details...
WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER
FREQUENCY.IF SO WHAT IS THE RANGE AND WHAT WILL BE THE
EFFECT IN PRESENT POWER SYSTEM IF WE CHANGE THE FREQUENCY
AS YOU SUGGEST ?
- 32 Answers
- 58852 Views
- L&T, MCL, I also Faced
- E-Mail Answers
Answer Posted / uk
there are many reason behind the use of 5o hz ...
1. in india all power plant set on the basis of given formula.
F = (P * N) / 120
where F = Frequency (in Hz)
P = the number of poles of the generator rotor
N = Speed of generator rotor (in RPM)
F*120=p*N should be equal to 6000.
if the we change the frequency the we have to change the 6000 factor which is uneconomical
2. core is combination of hysteresis loss and eddy current loss
hysteresis loss is directly proportional to the frequency and the eddy loss is directly proportional to square of the frequency. therefore as we increase the frequencies these loss also increase...
3. skin effect is depend on the frequency as we increase the frequency the skin effect is increases in the transmission line and the line become more resistive and copper loss is increase..
4. the using of ferromagnetic substance works efficiently on the frequency in between 44 hz to 70hz and the we go beyond the 70hz the life of the substance is decreases....
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?
what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?
What is the meaning of loop in transformer
Why is back emf used for a DC motor? Highlight its significance.
can we find the inductance of a induction motor?
Explain what is clipper and clamper circuits?
How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?
can u tell me the promotion from oiller to enginer
how much LT load can bear by the 100 KW HT connection.
What is the different types of cable & current capacity of cable
Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078
what are the preventive maintanance actions taken for air circuit breaker? please answer me
Currently what is the highest capacity (MVA) of SPPg generator available in the market?
The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?
