Answer / shahulsnfa

In electric meter we will have CT for measurement. Each
phase will have one CT. so in 1 phase one CT will be there.
in 2 phase will be there but they both will be connected in
such a way that the total measurement is also can be
measured. 3 p will have 3 CT else all same as like previous

open circuit test when performed on double the voltage & double the freq, then what will happen with p.f and current magnitude?

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briefly explain principle of resistance welding

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