Answer / 7anoter4

There are generators of which supply voltage is up to 30 kV
[usually 22-23 kV for 500-800 MVA].The problem is the
insulation- will be very expensive for higher voltage-the
generator it self and the auxiliary switchgear and
transformer. A medium voltage generator and a step-up
transformer is cheaper and more convenient for maintaining.

Answer / rahul anand

The generating
capacity of
power plant is
given by
multiple of form
factor(1.11)

Answer / abdul muneeb khan

ABB research
http://www.abb.com/cawp/seitp202/c1256c290031524bc12567310024e1e4.aspx

Answer / chyray

that are no limit on generating "Voltage"
e.g. Singapore HT network system are 22Kv, so standby
Generator are 22kv or 415v at LT side.
BTW generating power unit are "KVA" or "MVA" not voltage.

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