Code No: A4305, A4902, A6402, A5603/ C4305, C6402, C5603
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
M.Tech I Semester Supplementary Examinations September 2010
(COMMON TO POWER ELECTRONICS, ELECTRICAL POWER
ENGINEERING, POWER ENGINEERING AND ENERGY SYSTEMS, POWER
SYSTEMS (HIGH VOLTAGE))
Time: 3hours Max.Marks:60
Answer any five questions
All questions carry equal marks
1.a) Explain the merits of connecting HVAC system by HVDC tie lines?
b) Explain about the modern trends in HVDC system.
2. Derive the expression for magnitude of direct current for six-pulse bridge
converter having the overlay angle less than 600.
Discuss about the design of a single tuned filter for elimination of harmonics in
Discuss about the actual control characterstics of the converter.
Explain the interaction between HVAC and HVDC systems?
Explain about MTDC links and systems?
Discuss about transient over voltages in HVDC systems?
8. Explain the over current protections in HVDC systems?