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what is the design voltage for 6.6KV 2000 KVAR HT capacitor?

what is the design voltage for 6.6KV 2000 KVAR HT capacitor?..

It is 7.2kV. This is arrived by taking into account 10%
increase in supply voltage & rounded off. However this is
for installation where series reactors are not used. In
case a reactor is used (6% for HT) then the design voltage
is 6.6x1.1/(1-6/100) = 7.72kV. The design kVAr also needs
to be increased accordingly otherwise the output is reduced
and detuning percentage changes & detuning frequency
deviates.

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