Answer / vijaykumarht

The generated voltage in india is 11kv, so as to share the
load on each generator, as almost all generators were
running parallel.
The insulators anyhow designed for 11kv, but the series
insulators will not take 11kv each if connected in series,
hence as a standardization the voltage is transmitted in 11kv.
Anyhow the calcullation also becomes easier for the design
of insulators is may one of the reason.

Answer / ashli

size of the insulator plays an imp role in its breakdown
voltage. for porcelain the breakdown voltage is 40 to 200
kv per inch . so i think insulators are so designed since
transmission voltages are multiples of 11

Answer / zakeer

standerd cell(battery) voltage is 1.1v so we are prefered
multiples of 11 oniy

Answer / kavitha

In india voltage is transmitted in multiples of 11 because,
we all know insulators(procelain) has with stand capacity
of 11kv, depending upon the voltage its number
increases .For example for 33kv transmission no of
insulators used are 3.So to maintain the exact no of
insulators so that there is no leakage the voltages r
transmitted in multiples of 11.

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