STUPIDSID
1 (a)
Explain different types of HVDC links.
10 M
1 (b)
Explain with neat diagrams and waveforms the principle of 12 pulse converter.
10 M
2 (a)
What are the main components of HVDC transmission.
10 M
2 (b)
Explain the firing schemes in HVDC valves.
10 M
3 (a)
Explain the causes of harmonic generation in HVDC and its effects on the system.
10 M
3 (b)
Draw control characteristic of rectifier, inverter provided with both C.C. and C.E.A. controller and explain in brief.
10 M
4 (a)
Explain single communication with neat waveforms and diagrams.
10 M
4 (b)
Draw and explain a block diagram of the Hierarchical levels of controls of HVDC transmission system.
10 M
5 (a)
Give comparison between A.C. transmission and HVDC transmission.
10 M
5 (b)
Justify the statement converter consumes reactive power.
10 M
6 (a)
Explain the importance of current margin.
10 M
6 (b)
Operation of the bridge converter with overlap angle more than 60° is abnormal. Justify the statement.
10 M
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