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In india the power supply is always in multiple of 11,
eg.220 V, 440 V...
what is the reason?

Answers were Sorted based on User's Feedback



In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / ashu

DEAR
THE FORM FACTOR FOR A PURE SINE WAVE IS 1.1
SO, THE power supply is always in multiple of 11,
eg.220 V, 440 V...

Is This Answer Correct ?    61 Yes 6 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / mohideen

that is due to the form factor of a pure sine wave is 1.1.
form factor is given by the expression form factor=(rms/average)

Is This Answer Correct ?    19 Yes 4 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / m.s.ramya

Since the form fator of a sine wave is 1.1,because of this
reason the power supply is multiples of 11,220 and 440volts.

Is This Answer Correct ?    11 Yes 5 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / pratik p

1.1 form factor is everywhere in world.....

K_f = \frac{RMS}{Average} = \frac{\frac{1}{\sqrt{2}}}
{\frac{2}{\pi}} = \frac{\pi}{2\sqrt{2}} \approx 1.110720735

Is This Answer Correct ?    1 Yes 1 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / vinodmalik2009

There is no specific technical reason for the adoptation of
the voltage in multiple of 11, it is just to standardise
for manufacturing of different fittings, insulators or
other switchgears accordingly to limit the varieties.

Is This Answer Correct ?    1 Yes 1 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / arunkumar

i am sure that the reason for voltage becomes like multiple
of 11 is not due to the power factor.because in india
highest transmission voltage is 765 and 765 is not a
multiple of 11.so we can not say like it is due to the form
factor

Is This Answer Correct ?    3 Yes 6 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / rudra pratap singh

In India, there is a loss of 10% in overall system. So
suplly is given in the formet.........

VOLTAGE+10% OF SUPLLY VOLTAGE

Is This Answer Correct ?    0 Yes 4 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / mansoor

its b/c ,the power factor of sin is 1.1

Is This Answer Correct ?    4 Yes 20 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / mohideen

this is due to the power factor of a pure sin wave is being 1.1

Is This Answer Correct ?    12 Yes 33 No

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?..

Answer / mrudang

because in generation side
genrator generate the 11kV voltage

Is This Answer Correct ?    1 Yes 22 No

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