Q.Choose the correct answer from the following:2. A three-phase half-wave controlledconverter is constructed using 3 SCR devices.The circuit is supplying an R load with a<30°. As such, each SCR device would conductfora) 60° each cycleb) 120° each cyclec) 180° each cycled) 360° each cycle4. A thyristor has a maximum allowablejunction temperature of 120°C and theambient temperature is 40°C. If thermalresistance is 1.6° C/W, the maximumallowable internal power dissipation is:a. 20 Wb. 50 Wc. 92 Wd. 128 W6. In reverse blocking state of a thyristor:a) junction J2 is in reverse bias and J1, J3is in forward bias.b) junction J3 is in forward bias and J1, J2in reverse bias.c) junction J1, J3 is in reverse bias and J2is in forward bias.d) junction J1 and J2 is in forward bias andJ3 is in reverse bias.

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2. A three-phase half-wave controlled converter is constructed using 3 SCR devices. The circuit is supplying an R load with a< 30°. As such, each SCR device would conduct for a) 60° each cycle b) 120° each cycle c) 180° each cycle d) 360° each cycle

2. A three-phase half-wave controlled converter is constructed using 3 SCR devices. The circuit is supplying an R load with a< 30°. As such, each SCR device would conduct for a) 60° each cycle b) 120° each cycle c) 180° each cycle d) 360° each cycle

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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Question

Q.
Choose the correct answer from the following:
2. A three-phase half-wave controlled
converter is constructed using 3 SCR devices.
The circuit is supplying an R load with a<
30°. As such, each SCR device would conduct
for
a) 60° each cycle
b) 120° each cycle
c) 180° each cycle
d) 360° each cycle
4. A thyristor has a maximum allowable
junction temperature of 120°C and the
ambient temperature is 40°C. If thermal
resistance is 1.6° C/W, the maximum
allowable internal power dissipation is:
a. 20 W
b. 50 W
c. 92 W
d. 128 W
6. In reverse blocking state of a thyristor:
a) junction J2 is in reverse bias and J1, J3
is in forward bias.
b) junction J3 is in forward bias and J1, J2
in reverse bias.
c) junction J1, J3 is in reverse bias and J2
is in forward bias.
d) junction J1 and J2 is in forward bias and
J3 is in reverse bias.

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