Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ?
2) Why ups required dedicated earth?

Answer Posted / guest

for every 100V ,we gotta add 10V in order to compensate the
transmission loss.hence its in this series. its actual
story goes like this.... thomas alva edisn introduced the
first dc distribution systm..i.e, manhatten dc system.he
wanted to make one incandescent lamp glow.for that he tried
with 100V n found the lamp to glow brightly.but when this
lamp was fixed in a street corner, it did not glow with the
xpected brightness.so he made it as 110V and tried the same
n he found the lamp to glow with that original
brightness.from that time, it became a std to add 10V for
the trans loss compensation.

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