g- In a single-phase full converter, for discontinuous load current and angle ß >π, each SCR conducts for ..............1- α,2- ß-a,3-B,4- a+ß 5- Noneof previous.i-The number of thyristors required for three phase to three-phase 3-pulse typecycloconverter are ........... respectively 1-6, 2-12, 3-18, 4-36, 5-24.The peak voltage of UJT is ........... 1-VB2B1, 2- VB2B1+0.6, 3- VB2B1+0.6,4-VB2B1, 5-None of previous.j-K The time available to turn-off thyristor in load-commutated chopper is3- 2E2Cf, 4-E²C, 5- None of previous.10lo2EC1-2, 2-,EC

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g- In a single-phase full converter, for discontinuous load current and angle ß> π, each SCR conducts for ................ 1- α, 2- ß-a, 3-B, 4- a+ß None of previous. i- The number of thyristors required for three phase to three-phase 3-pulse type respectively 1-6, 2-12, 3-18, j- cycloconverter are. The peak voltage of UJT is 4- VB2B1, 5-None of previous. ********** 4-36, 5-24. 1-VB2B1, 2- VB2B1+0.6, 3- ÇVB2B1+0.6,

g- In a single-phase full converter, for discontinuous load current and angle ß> π, each SCR conducts for ................ 1- α, 2- ß-a, 3-B, 4- a+ß None of previous. i- The number of thyristors required for three phase to three-phase 3-pulse type respectively 1-6, 2-12, 3-18, j- cycloconverter are. The peak voltage of UJT is 4- VB2B1, 5-None of previous. ********** 4-36, 5-24. 1-VB2B1, 2- VB2B1+0.6, 3- ÇVB2B1+0.6,

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.14P: A single-phase 50-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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