Question

In distribution transformer:

• A. Core loss is less than copper loss
• B. Eddy current loss is equal to copper loss
• C. Core loss is equal to copper loss
• D. Hysteresis loss is equal to copper loss

Hint:

Copper loss increases with the current (load), while core loss remains constant under normal operation.

Answer 1

The Correct Option is A

In a distribution transformer, core loss (hysteresis and eddy current losses) is generally less than copper loss (I²R losses) under normal operating conditions. Copper loss increases with the load, whereas core loss remains relatively constant.