a) b) [² c) Deu Peu 7-The all day efficiency of a transformer depends primarily on a) It's copper loss 9 9 b) The amount load c) The duration of load. d) Both (b) and (c) 8-A single-phase, 2200/200 V transformer takes 1 A at the H.V side on no load at a power factor of 0.23 lagging. The magnetizing current is a) 0.46 A 50.973 A c) 0.23 A d) 0.5 A (16 marks) (B)-Draw the connection diagram of three-phase transformer with Y-D connection and give the mathematical relationships of line and phase (voltage, current) for both sides, and out power (kW) (5 marks) nestivaly Its full load
a) b) [² c) Deu Peu 7-The all day efficiency of a transformer depends primarily on a) It's copper loss 9 9 b) The amount load c) The duration of load. d) Both (b) and (c) 8-A single-phase, 2200/200 V transformer takes 1 A at the H.V side on no load at a power factor of 0.23 lagging. The magnetizing current is a) 0.46 A 50.973 A c) 0.23 A d) 0.5 A (16 marks) (B)-Draw the connection diagram of three-phase transformer with Y-D connection and give the mathematical relationships of line and phase (voltage, current) for both sides, and out power (kW) (5 marks) nestivaly Its full load
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
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