Answer / den

WE CAN'T CALCULATE THE POWER LOSE BECAUSE THE CKT. IS OPEN
AND THERE IS NO FLOW OF CURRENT.**** thanks

Answer / den jagus

we can't Calculated the power lose of an open ckt. Because
there is flow current.**** THANKS

Answer / nur.asidik

we can calculate no load loss of TR, but you need to know impedance of TR

Answer / k.prakashchandra

Short the LV side ,increase voltage on HV ,till you get the rared current. The percentage of this voltage against rated voltage is % impedance . if you connect a watt meter you get copper losses . With open circuit apply rated voltage ,to measure the iron losses with a watt meter .

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