QUESTION 3A 2000 kVA, 33/0.433 kV, three-phase, 50 Hz, two winding transformer has four2.5 % taps on its primary winding and percentage impedance of (1 + j7) 2.Assume the supply voltage remains constant.a)i)Draw the two winding transformer and clearly indicate the four taps on theprimary.Calculate the tapping that should be used to maintain 433 V, if on-loadsecondary voltage reduces to 422 V.ii)iii)Determine the tapping that must be used to maintain rated voltage at thesecondary on full load at 0.8 lagging power factor.

Given data The rated kVA of the transformer is S=2000 kVA,induced emf ratio is…

QUESTION 3 A 2000 kVA, 33/0.433 kV, three-phase, 50 Hz, two winding transformer has four 2.5 % taps on its primary winding and percentage impedance of (1 + j7) 2. Assume the supply voltage remains constant. a) i) Draw the two winding transformer and clearly indicate the four taps on the primary. ii) Calculate the tapping that should be used to maintain 433 V, if on-load secondary voltage reduces to 422 V. iii) Determine the tapping that must be used to maintain rated voltage at the secondary on full load at 0.8 lagging power factor.

QUESTION 3 A 2000 kVA, 33/0.433 kV, three-phase, 50 Hz, two winding transformer has four 2.5 % taps on its primary winding and percentage impedance of (1 + j7) 2. Assume the supply voltage remains constant. a) i) Draw the two winding transformer and clearly indicate the four taps on the primary. ii) Calculate the tapping that should be used to maintain 433 V, if on-load secondary voltage reduces to 422 V. iii) Determine the tapping that must be used to maintain rated voltage at the secondary on full load at 0.8 lagging power factor.

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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