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Answer Posted / bilal ahmad
Basicaly Pakistan, Uk, Europ are using 50hz and have
advantage less losses in reactive and easy transmission on
high voltage and disadvantade is large size of machine and
USA,KSA have 60 hz have advantage of smal size of machine
mean low coast and disadvantage is more losses in reactve
lose and low level of transmition
but both system have some advantage and disadvantage and
both area are try to improve their disadvantage to suite
the system for future
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