Question 1. The primary side-reduced equivalent circuit parameters of a three-phase Δ/Δ connected 50 Hz, 300 KVA, 2400:600 V transformer are as follows. This transformer supplies a balanced full load with a power factor of 0.7 at rated voltage. Using the equivalent circuit given below; R_1=2 Ω X_1=5 Ω G_c= 3 mS R_2'=1 Ω X_2'=4 Ω B_m=4 mS A) Calculate the iron losses of the transformer. (Other units to be entered in kilowatts will not be accepted.) B) Calculate the copper losses of the transformer. (Other units to be entered in kilowatts will not be accepted. Two digits will be entered after the comma.) C) Calculate the efficiency of the transformer.
Question 1. The primary side-reduced equivalent circuit parameters of a three-phase Δ/Δ connected 50 Hz, 300 KVA, 2400:600 V transformer are as follows. This transformer supplies a balanced full load with a power factor of 0.7 at rated voltage. Using the equivalent circuit given below; R_1=2 Ω X_1=5 Ω G_c= 3 mS R_2'=1 Ω X_2'=4 Ω B_m=4 mS A) Calculate the iron losses of the transformer. (Other units to be entered in kilowatts will not be accepted.) B) Calculate the copper losses of the transformer. (Other units to be entered in kilowatts will not be accepted. Two digits will be entered after the comma.) C) Calculate the 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 3.54P: An infinite bus, which is a constant voltage source, is connected to the primary of the...
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Question 1. The primary side-reduced equivalent circuit parameters of a three-phase Δ/Δ connected 50 Hz, 300 KVA, 2400:600 V transformer are as follows. This transformer supplies a balanced full load with a power factor of 0.7 at rated voltage. Using the equivalent circuit given below;
R_1=2 Ω X_1=5 Ω G_c= 3 mS
R_2'=1 Ω X_2'=4 Ω B_m=4 mS
A) Calculate the iron losses of the transformer. (Other units to be entered in kilowatts will not be accepted.)
B) Calculate the copper losses of the transformer. (Other units to be entered in kilowatts will not be accepted. Two digits will be entered after the comma.)
C) Calculate the efficiency of the transformer.
D) Calculate the voltage regulation of the transformer.
E) Calculate the amplitude of the primary line current. (The result will be two digits after the comma and other units to be entered in ampere will not be accepted.)
F) Calculate the primary power factor. (The value will be entered as 0.95, two digits after the comma.)
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