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The secondary winding of a transformer has a terminal voltage of vsec (t) = 234 sin (377t) V. The turns ratio of the transformer (N1/N2) is 72:201. If the secondary current of the transformer isec (t) = 12 sin(377t + [25°]), (a) What is the RMS value of the primary current of this transformer? (b) What are its voltage reg- ulation and (c) efficiency? The impedances of this transformer referred to the primary side are Rsc = 0.292, Xsc = 0.759 and Rc = 30022, Xm = 7022. N.B. To compute the regulation, neglect the excitation current of the transformer, io = ic+im. Single phase transformer with a load. Re jXsc www (~) v₂ (1) -R₂ ww jX m. N₁ N₂ (a) RMS of primary current: A (b) Voltage regulation: % (c) Efficiency: % —

The secondary winding of a transformer has a terminal voltage of vsec (t) = 234 sin (377t) V. The turns ratio of the transformer (N1/N2) is 72:201. If the secondary current of the transformer isec (t) = 12 sin(377t + [25°]), (a) What is the RMS value of the primary current of this transformer? (b) What are its voltage reg- ulation and (c) efficiency? The impedances of this transformer referred to the primary side are Rsc = 0.292, Xsc = 0.759 and Rc = 30022, Xm = 7022. N.B. To compute the regulation, neglect the excitation current of the transformer, io = ic+im. Single phase transformer with a load. Re jXsc www (~) v₂ (1) -R₂ ww jX m. N₁ N₂ (a) RMS of primary current: A (b) Voltage regulation: % (c) Efficiency: % —

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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need correct answers for part 2 and 3 . the correct current is 23.524 for part a .

The secondary winding of a transformer has a terminal voltage of vsec (t) = 234 sin (377t) V. The turns ratio of the transformer (N1/N2) is 72:201. If the secondary current of the transformer isec (t) = 12 sin(377t + [25°]), (a) What is the RMS value of the primary current of this transformer? (b) What are its voltage reg- ulation and (c) efficiency? The impedances of this transformer referred to the primary side are Rsc = 0.222, Xsc = 0.759 and Rc = 30022, Xm = 7022. N.B. To compute the regulation, neglect the excitation current of the transformer, io = ic+im. Single phase transformer with a load. Rsc jX, (~) v₂ (1) -R₂ www jX m. N₁:N₂ (a) RMS of primary current: A (b) Voltage regulation: % (c) Efficiency: % —
Transcribed Image Text:The secondary winding of a transformer has a terminal voltage of vsec (t) = 234 sin (377t) V. The turns ratio of the transformer (N1/N2) is 72:201. If the secondary current of the transformer isec (t) = 12 sin(377t + [25°]), (a) What is the RMS value of the primary current of this transformer? (b) What are its voltage reg- ulation and (c) efficiency? The impedances of this transformer referred to the primary side are Rsc = 0.222, Xsc = 0.759 and Rc = 30022, Xm = 7022. N.B. To compute the regulation, neglect the excitation current of the transformer, io = ic+im. Single phase transformer with a load. Rsc jX, (~) v₂ (1) -R₂ www jX m. N₁:N₂ (a) RMS of primary current: A (b) Voltage regulation: % (c) Efficiency: % —
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