Question

the open circuit test in a transformer is used to mesure ​

Answer 1

Answer:

The purpose of the open-circuit test is to determine the no-load current and losses of the transformer because of which their no-load parameters are determined. This test is performed on the primary winding of the transformer. The wattmeter, ammeter and the voltage are connected to their primary winding.

Answer 2

Answer:

The open circuit test in a transformer is used to measure the core losses.

Explanation:

The open-circuit test also known as the no-load test is one of the methods used in to determine the no-load impedance in the excitation branch of a transformer. The no-load can be represented by the open circuit. The main purpose of the open-circuit test is to determine the excitation admittance of the transformer-equivalent circuit, the core loss, the no-load excitation current, and the no-load power factor. The current drawn during this open Circuit test will be the excitation current.

Hence, it can be concluded that the open circuit test in a transformer is used to measure the core losses.

#SPJ3