Why all voltage levels are the multiples of 11KV?
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Answer Posted / johince
Multiples of 11 has no role decoded from form factor and
anything like that (I believe). the relation to form factor
is just a coincidence.
In early days when technology has not advanced this much,
the transmission lines consumes around 10% of the total
power transferred. Normally loads are designed as multiples
of 10 or 100 KW. So the generation done for required load
power + transmission loss. ie 11KW, 110KW etc. So generated
voltage also was designed as multiples of 11.
Hence the insulators has to be designed for these volatges
and hence the form factor coincidently derived as 1.11.
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