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 ?

Answers were Sorted based on User's Feedback



WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / rvg

Question :

WHY THE FREQUENCY IS 50 HZ IN INDIA

Ans: The material properties of ferromagnetic substances
having great importance in selecting frequency. Frequency
range from 45 Hz to 70 Hz is useable region.
Another consideration is the core and copper loss. In core
loss, the power loss is proportional to frequency, and for
copper loss, is proportional to sq.of frequency.
Developing countries like India, defenitely select the
chepest option, thats 50 HZ.
Another consideration is equipment availablity.
Equipment availibility is only in the range of 50 Hz and 60
Hz. If we chose some other frq. say 70 Hz, Indian
manufactures has to produce accordingly, and that will
create less utilization of ferro magnetic materials.

From above, the conclusion is 50Hz is most suitable and
economical option.

Is This Answer Correct ?    78 Yes 9 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / prerit saraswat

Yes we can use another frequency but for this change we have
to change in our power system such as
(1) As we know in generating stations the alternator is used
for producing electric energy and its frequency is given by
f= (Ns)*P/120
where Ns is synchronous speed and P is number of poles so
for increasing the frequency we have to increase the number
of poles which becomes very costly & so uneconomically
And another reason is that we used electrical instrument
which are standardized at 50 hz, 230 v
so we have to also change our electrical systems which are
also very costly
so this is only standard value we can change it but it is
very uneconomical

Is This Answer Correct ?    83 Yes 18 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / saisudha patro

It is a standard choosen.We can choose some other frequency.
If we change the frequency the power system will be
disrupted,the instruments&appliances has to be designed
accordingly.

Is This Answer Correct ?    98 Yes 69 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / alok bahukhandi

being a colony of britishers for about 200yrs, all the
standards in india were set up by the britishers.this is
because the frequency in india is tuned to 50hz, since the
british follow the same.after the post independence period
if our country would have changed some other frequency it
would be a huge hurdel in development of a country like
india, since all the machines and the entire power system
was tuned to 50hz and replacing it would cost huge for
india.presently if it is done then the effiency of all the
machines and the entire power system would be drop by 20%
resulting a drop in india's growth rate.
as far as the range of frequency is concerened it lies in
the band of 45 to 70 hz (which is most efficient) and we
took the average or closest to the average i.e 50 or 60hz.

Is This Answer Correct ?    17 Yes 3 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / p kannan

For a Electrical system to get synchronised, one of the
condition to get satisfy is the system frequency.
If frequency to be changed , then it is to be considered
right from power generation system.
While changing the frequency of the stationthe following
factors to be considered.
Frequency = 12o*poles/speed of the machine.
If this frequency factor to get change.....then pole of the
machine and the speed of the machine has to design
accordingly, which is quite inefficient and many factors to
be further considered.

Is This Answer Correct ?    38 Yes 31 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / 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

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / ajay

in earlier days we used our power system only for lighting purpose and later other motors and generators were invented so before their invention we adopted 50hz frequency system and it costs a lot for changing the entire system into 60hz frequency system.

Is This Answer Correct ?    0 Yes 0 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / ram

actually our generation design is for 50 hz thats why india follow 50 hz and our equipement also design for same if we want to change the frequency we need to change the all electrical equipment

Is This Answer Correct ?    0 Yes 0 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / alok.bahukhandi999

being a colony of the britishers for about 200yrs ,all the
standards in india were set up by the britishers.therefore
the frequency in india is tuned to 50hz since the same is
used by the britishers.after the post independence period
if india would have changed its frequency then it would
cost a lot to india and will be a huge hurdel in the
development of a country like india.as far the range is
concerened it lies in the band of 45 to 75hz(which is most
efficient) and we use the average or the figure i.e 50 or
60hz.at present if we change the frequency then the
efficiency of all the machines and the entire power system
will be drop by about 20% which in return would drop the
growth rate of india .

Is This Answer Correct ?    2 Yes 3 No

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WH..

Answer / theja jayathilaka

All electrical equipment are using the frequency of 50Hz.
If we change the range of frequency in all the electrical
system the equipment also damage.

Is This Answer Correct ?    2 Yes 3 No

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