Answer / lokesh ranjith

ctpt= current transformer & potential transformer

CT connected in series with the circuit & pt connected in
parallel to trivector meter

trivector meter is metering device which reads all
parameter of electrical devices like
KW,KVA,KVAR,KVARH,PF,I,V,etc

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

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