Example: A 50 kVA distribution transformer has iron loss of 600W and full-load copper loss of 700w. the transformer is supplying load. The load cycle is as under: 35kW and 0.8 power factor lag for 6 hours; 30kW and 0.707 lag for 8 hours and no- load for 10 hours. Calculate the all-day efficiency of the transformer.
Example: A 50 kVA distribution transformer has iron loss of 600W and full-load copper loss of 700w. the transformer is supplying load. The load cycle is as under: 35kW and 0.8 power factor lag for 6 hours; 30kW and 0.707 lag for 8 hours and no- load for 10 hours. Calculate the all-day efficiency of the transformer.
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 3.15P: Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at...
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