Transformer » Exercise - 112. The main purpose of performing open-circuit test on a transformer is to measure its : (a) Cu loss (b) core loss (c) total loss (d) insulation resistance
Transformer » Exercise - 15. Transformer cores are laminated in order to : (a) simplify its construction (b) minimise eddy current loss (c) reduce cost (d) reduce hysteresis loss
Transformer » Exercise - 114. At relatively light loads, transformer efficiency is low because : (a) secondary output is low (b) transformer losses are high (c) fixed loss is high in proportion to the output (d) Cu loss is small