High Voltage Direct Current (HVDC) Interview Questions:

Following are the below High Voltage Direct Current (HVDC) Interview Questions and Important Questions which is very useful for interviews and exams

1. What is the principle of HVDC system operation ? Discuss the technical and economic advantages of dc systems over ac systems.

2. Briefly discuss the advantages and the operational problems of HVDC transmission.

3. Explain the advantages of HVDC transmission.

4. Explain the advantages and limitations of HVDC transmission system.

5. What are the problems in EHVAC transmission ? How are they overcome in HVDC transmission ?

6. Write merits and demerits of high voltage dc transmission systems.

7. Discuss merits and demerits of HVDC transmission over EHV-AC transmission.

8. Compare EHV AC and HVDC options for an integrated power network.

9. Discuss types of HVDC links.

10. Discuss layouts, relative merits and demerits of different types of HVDC links.

11. Give a comparisons of monopolar and bipolar HVDC links.

12. Explain with necessary diagrams kinds of HVDC links used in HVDC systems. Also explain the relative advantages and disadvantages of using these links. What are the precautions needed for series and parallel connections of thyristors to construct a HVDC system ?

13. What is ground return and why is it employed ? Give the problems associated with the use of ground as the return conductor.

14. What are the types of HVDC transmission system applications ?

15. Give a neat sketch of a 12-pulse bipolar HVDC station indicating the position of various equipment. Give the uses and limitations of each equipment.

16. Write short notes on the following :

• HVDC transmission.
• Special features of HVDC transmission.
• Techno-economic aspects of HVDC transmission.
• EHV DC transmission versus EHV AC transmission.
• Terminal components of HVDC transmission system.
• HVDC links and its types.