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Q 3 A

Q 3 A

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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Q 3 A

Q3 (а) Indicate how the performance of a transformer will change given the following changes to the transformer design: (i) An increase in the primary winding wire diameter. (ii) An increase in the magnetising reactance. (iii) An increase in the stacking factor. (v) The use of oil cooling as opposed to natural air cooled. A 17.Gs 2 resistance is connected to the secondary winding of a single phase (b) 115 V/230 V transformer with the equivalent circuit parameters shown in Тable Q3b. Using this information determine the following: (i) The transformer turns ratio. (ii) The output voltage and output power (W) under load. (iii) The regulation and efficiency under load. (iv) The required load to operate at maximum efficiency. A transformer manufacturer requires a single phase 230 V/ 3G6 V (c) transformer to match the specification shown in Table Q3c. Using this specification determine the required transformer equivalent circuit parameters and turns ratio to match all the requirements. Parameter Value Units Хм 14 Rc 55 Ω 0.22 Ω Rieg X1eq 0.5 Ω Table Q3b
Transcribed Image Text:Q3 (а) Indicate how the performance of a transformer will change given the following changes to the transformer design: (i) An increase in the primary winding wire diameter. (ii) An increase in the magnetising reactance. (iii) An increase in the stacking factor. (v) The use of oil cooling as opposed to natural air cooled. A 17.Gs 2 resistance is connected to the secondary winding of a single phase (b) 115 V/230 V transformer with the equivalent circuit parameters shown in Тable Q3b. Using this information determine the following: (i) The transformer turns ratio. (ii) The output voltage and output power (W) under load. (iii) The regulation and efficiency under load. (iv) The required load to operate at maximum efficiency. A transformer manufacturer requires a single phase 230 V/ 3G6 V (c) transformer to match the specification shown in Table Q3c. Using this specification determine the required transformer equivalent circuit parameters and turns ratio to match all the requirements. Parameter Value Units Хм 14 Rc 55 Ω 0.22 Ω Rieg X1eq 0.5 Ω Table Q3b
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