Answer / dharamveer

we can increase our frequency rate but on increasing f rate
our whole generation system has to modified which is too
much costly on other hand our appliance design has to
modified

Answer / soumya

f=(n*p)/120;
f=frequency=50;
n=rpm=3000;
p=no of poles of generators=2;
changing p is quite impossible,
changing rpm is costly;
loads are to be changed;
so it is not likely to change f in any country

Answer / bhupendra & mayur

yes by coupling 50 hertz motor with the generator of 200 or
100 or required hertz so our input will be 50hertz with
output of required hertz(especially for testing purpose)
only.

Answer / ashish mewada

WE can not increase frequency in particular system because
of in our power grid system equipment operate on 50 Hz also
in domestic industrial equipment working @5oHz.so it's not
harmful for this.
We can increase & decrease Frequency BY AC DRIVE IT IS
POSSIBLE

any earth foult trip the relay but in welding time not trip by earth foult

0 Answers   Power Grid, Siemens,

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in dc transmission the frequency pi is zero, then how it will transmit communication signal?

1 Answers  

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what are the factors to be considered while design the breaker either HT or LT??

0 Answers  

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2 Answers  

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what is the preventive @ predective maintenance

2 Answers  

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explain with diagram how to protect transformers and substations from over current with help of CT's?

0 Answers   BARC,

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WHAT IS THE DIFFERANCE BETWEEN IP54 AND IP55

2 Answers  

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how to calculate power factor of capacitor? what is transformer rating?

2 Answers  

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which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?

0 Answers  

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1 Answers  

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Induction generator has = A negative speed B negative slip C negative voltage D negative current

2 Answers  

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what is the switching substation

2 Answers  

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