Question { Bhel, 113255 }
why the generating voltage in India is 11kV or why is it be
transmitted as multiples of 11
Answer
We always use a multiple of 1.11 bcoz for a pure sine
wave the FORM FACTOR is the ratio of rms value of voltage
or current with the avg. value of voltage or current and for pure sine wave rms value of current is Imax/root '2' and avg. value is 2Imax/pie. and which comes out to be 1.11 so,we cant have a combination of other then a multiple of 1.11.