Allday 24 0/P Allday = Allday 24 0/P+ (Pivan) 24 + (Pau) 201 24 A10 KVA transformer During the day it is loaded as follows: For 6 hours For 8 hours For 10 hours full load at 0.9 p.f lag halve load at 0.8 p.f lag no load If the iron loss equal 60 watt and copper loss equal 100 watt, determine its all day efficiency. ANS. 97.4%

Allday 24 0/P Allday = Allday 24 0/P+ (Pivan) 24 + (Pau) 201 24 A10 KVA transformer During the day it is loaded as follows: For 6 hours For 8 hours For 10 hours full load at 0.9 p.f lag halve load at 0.8 p.f lag no load If the iron loss equal 60 watt and copper loss equal 100 watt, determine its all day efficiency. ANS. 97.4%

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 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...

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