Single phase transformer has 24KVA, 2400/240, 50 Hz. Its series impedance Z, 0.15+j0.6pu connected tthe load of 21.60KVA at 0.80 power factor lagging. The input power factor is0.634 laggingO 0.999 laggingO 0.999 leadingO unityzero leadingO 0.56 lagging

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Answered: Single phase transformer has 24KVA,…

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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A single phase 9.6 kVA, 500 V / 1.5 kV transformer has an impedance of 1.302 Ω with respect to primary side. and secondary sides. Find its per-unit impedance with respect to primary side only a. 0.02 b. 0.03 c. 0.04 d. 0.05
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2. Find the turns ratio for the ideal transformer at right required to match the 10000 source impedance to the 100 load. Vs 1₁ 1000 22 V₁ n:1 + V₂ 12 080 1022
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The turn ratio and type of transformer required for the circuit shown in figure, where the average value is 15.9 and the input voltage is 120v rms: reeeeeee 0.294 step up O 0.147 step down eeeeeee 0.294 step down 2:1 step down O 5:1 step down Other: R₁
A 120 kVA, 1350/330 V single phase transformer has the following parameters: R1 = 0.34 Q, X1 = 0.59 0, R2 = 0.014 Q, X1 = 0.029 Q, Rc = 380 and Xm = 320 Q. The no load current is 4.7 A at a power factor of 0.36 lagging and the no load losses are 4.6 kW. For a full load and 0.9 power factor lagging with 300 V load terminal voltage, determine (a) equivalent circuit parameters referred to primary side, (b) percentage regulation and (c) full load efficiency. O:01 AM
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Excercies: 1. Two transformers A and R to a load of (2+jh5) Their impedanas in secondary terms Coltjo.6)5r EA = 200 Lov output and Power factor of each transformer are Connected in parallel ZA = (o15t+j 0.8)2 and zR= Their noload termind nltages are and Es = 21010V Fnd the poer are %3D 11 2. Two trans formes A andB of ratings 500KVA and 25okVA supplying a load kVA of 750 at a8 Pf lagging. Their open circuit voltayes are 400V and 410V respecctively. Transformer A has 1% rsistance and 5/ reactance and transformer B hay s resistance and 4 reactance. Fnd (a) Cross-curnt in the seondaries load shared by each transforcmer. are on no-load,b) the 2.
QUESTION 11 A single phase 600v/120v transformer has a load of 30 ohms resistive and 20 ohms inductive in series. What is the secondary load impedance with the phase angle? O a. 36.1<33.7 degrees O b. 39.5<38 degrees O c. 30.8<28 degrees O d. 46.2<53 degrees

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Single phase transformer has 24KVA, 2400/240, 50 Hz. Its series impedance Z, 0.15+j0.6pu connected t the load of 21.60KVA at 0.80 power factor lagging. The input power factor is