Answer / cnu

Please be specific in asking your question.

max load in the sense, the max load is defined to a
particular cable that is operating at a particular voltage.

and max voltage from earth to phase means...... how can you
decide that.

a 3-ph 415V supply has a earth to phase volate of 230V,
which is the one we have in our house.

Same way a 11KV line has an earth to phase violtage of
6.3kV. and so on we go upto 800KV.

Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

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