A lø transformer has an equivalent leakage reactance of 0.04 per unit. The full-load copper loss is 0.015 per unit and the no-load power loss at rated voltage is 0.01 per-unit. The transformer supplies full-load power at rated voltage and 0.85 lagging power factor. Determine (a) the efficiency of the transformer and (b) the voltage regulation.

A lø transformer has an equivalent leakage reactance of 0.04 per unit. The full-load copper loss is 0.015 per unit and the no-load power loss at rated voltage is 0.01 per-unit. The transformer supplies full-load power at rated voltage and 0.85 lagging power factor. Determine (a) the efficiency of the transformer and (b) the voltage regulation.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.64P: The per-unit equivalent circuit of two transformers Ta and Tb connected in parallel, with the same...

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