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H1083 Pages: 2

Draw the schematic of a 3 phase PAR with thyristor tap changers having ternary (7)

proportioned winding sections for discrete level voltage control and Explain the

working
Also draw the phasor diagram of the 3 phase PAR (3)
How a TCSC can be implemented? Explain with Schematics. (4)
Draw the V-I operating region of TCSC in voltage and reactance control modes (6)
PART D

Answer any two full questions, each carries 10 marks.
Explain the direct control of SSSC with neat Schematic (10)
Draw the schematic of implementation of a UPFC. (4)
What are the functions of series converter, shunt converter and DC link in the (6)
UPFC?
Compare STATCOM and SVC (10)

CRE

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