Question

open circuit test in transformer is preformed whit

primary winding only
secondary winding
both

Answer 1

$\huge\mathfrak{Answer}$

The test is conducted on the high-voltage (HV) side of the transformerwhere the low-voltage (LV) side or thesecondary is short circuited. A wattmeter is connected to the primary. An ammeter is connected in series with the primary winding. ... The ammeter reading gives the primaryequivalent of full load current IL.

$\huge\mathfrak{Thanks}$❤️