20. The output of a single phase mid-point rectifier is 20 A, 150 V dc while the inputsupply voltage is 220 V AC (rms). Find the transformer rating, voltage ratio andtransformer primary current. Assume the firing angle to be 30° and the load to beinductive.[Hint. Ref. Ex 4.8]21. A single phase full controlled bridge is fed from 220 V ac rms supply. The loadcurrent for the RL load resistance is 8A and the firing angle is 60°. Calculate theactive and reactive inputs. If one of thyristors gets open circuited obtain the aver-age dc output voltage and current for same firing angle. How can you ensure thatthe load current be continuous ?[Hint. Ref. Ex 4.15]22. A single phase half wave rectifier alongwith a commutating diode is used tosupply a heavily inductive load from a 250 V ac supply. Assuming the load cur-rent to be 15 A, find the average load voltage for a=45°. What is the load resis-tance ? If the firing angle is made 100°, does the load voltage become negative ?[Hint. Ref. Ex 4.18]

Answered: Image /qna-images/answer/e3def91f-fb4f-4415-9fbd-9d5459605942.jpg

20. The output of a single phase mid-point rectifier is 20 A, 150 V dc while the input supply voltage is 220 V AC (rms). Find the transformer rating, voltage ratio and transformer primary current. Assume the firing angle to be 30° and the load to be inductive. [Hint. Ref. Ex 4.8] 220 V rme eupply The load

20. The output of a single phase mid-point rectifier is 20 A, 150 V dc while the input supply voltage is 220 V AC (rms). Find the transformer rating, voltage ratio and transformer primary current. Assume the firing angle to be 30° and the load to be inductive. [Hint. Ref. Ex 4.8] 220 V rme eupply The load

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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