Answer / prashant rajak

Beacuse of the form factor in AC system which is 1.111111
therefore transmission in Av system is multiple of 11

Answer / kuldeepsinh

In our india, transmission losse are 10% of transmission voltage, hence we want to transmit 10kv then 10% of 10 is 1... So we use to transmit 11mv...similar For 30 kv =33kv,
60kv=66kv
120kv=132kv
200kv=220 kv and more. Thanks

Answer / vinod

this is because of form factor in case of A.C. which is 1.11
as sinusoidal waveform are used in A.C.but if we prefere
square waveform voltage are not in multiple of 11kv because
form factor is 1 in case of square waveform

Answer / tarkeshwar

As we know very well for distribution or transmission
purpose we use Transformer in any type of substation. And
the Form factor of Transformer is 1.11 that's why
transmission voltages are in multiple of 11kv.

Answer / saravanan

Because of m.f is 1.111

Answer / neeraj pati

IT is due to the form factor which equal to 1.111111.
therefore the transmission voltages are in multiple of 11.

Answer / piyush

A single disc used in the insulator is made to withstand 11kv voltage and it works more efficiently at 11kv. so voltage is in multiples of 11 such that we can use the disc accordingly.
if we take form factor as its reason, then its wrong because there is no such relation between F.F and voltage.

Answer / dhanashri

bcoz the transmission of electricity is of long distance
and there may be loss of power . there are steps of
electricity transmissionare as generation of power ,
primary transmission, sec transmission ,pri
distribution ,sec distribution .for all this steps
different vtg level is used .and it is done by using step
down transformwer.11kv is used at the time of distibution.
may there is an relation of form factor .

Answer / tom reji

3. The power loss in line is proportional to
resistance and square of current. (i.e. P LOSS=I^2*R).
Higher voltage transmission and distribution thus would
help to minimize line voltage drop in the ratio of
voltages, and the line power loss in the ratio of square of
voltages. For instance, if distribution of power is raised
from 11 kV to 33 kV, the voltage drop would be lower by a
factor 1/3 and the line loss would be lower by a factor
(1/3)^2 i.e., 1/9. Lower voltage transmission and
distribution also calls for bigger size conductor on
account of current handling capacity needed.
4.

Answer / shyamala

giv the correct answer plz

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