Question basically asks to find the parameters of a transformer via an open circuit and closed circuit test. We were taught that for OCT,(adsbygoogle = window.adsbygoogle || []).push({});

V = (I * cos(theta)) * R

V = (I * sin(theta)) * X

To find the core losses. This makes sense, since we are only using the component of the current that is parallel to the real and imaginary impedances. However, for the SCT, we were taught

P = I^2 R

Wouldn't it be more logical to use

P = (I * cos(theta))^2 * R

since P is the real component of S, and therefore we should use only the real component of current I?

**Physics Forums - The Fusion of Science and Community**

# Calculate the transformer parameters

Have something to add?

- Similar discussions for: Calculate the transformer parameters

Loading...

**Physics Forums - The Fusion of Science and Community**