Extra High Voltage (EHV) AC Transmission Interview Questions:

Following are the below Extra High Voltage (EHV) AC Transmission Interview Questions and Important Questions which is very useful for interviews and exams

1. Give the advantages, drawbacks and limitations of EHV ac transmission.

2. What are the problems involved in transmission of power using EHV ac system ? Discuss in detail. Also state how these problems are being solved.

3.  What do you understand by hollow, ACSR and bundled conductors ?

4. Explain in detail the reasons for adoption of bundled conductors in EHV (extra high voltage) ac transmission lines.

5. What are disadvantages of HVAC transmission.

6. Discuss the various problems of EHV power transmission.

7. Describe the design considerations of EHV transmission lines.

8. Discuss the points which are considered while designing a transmission line.

9. Describe the various conductor configurations and choice of number of circuits for EHV transmission lines.

10. Discuss the advantages of using ‘bundled conductors’ in EHV overhead transmission lines.

11. What is series compensation ? What for it is provided ‘? Give its advantages and problems associated with it.

12. Discuss the series and shunt compensation of a transmission line.

13. What is passive compensation ? Compare series and shunt compensators.

14. Identify the utility of FACTS devices in power network.

15. Explain the principle and usefulness of flexible ac transmission system.

16. Discuss the principle and advantages of using Flexible AC transmission (FACT) system.

17.  Explain in brief the role of flexible ac transmission systems.

18. What are the various FACTS controllers ? Explain the operating principle of any one of them.

19. How FACTS controllers make ac transmission flexible ? Describe working principle of TCSC and show how it enhances power transfer capability of lines.

20. Write short notes on the following :

  • Necessity of EHV ac transmission.
  • Problems associated with EHV ac transmission.
  • Limitations of EHV ac transmission.
  • Special features of EHV ac transmission.
  • Series and shunt compensation.
  • FACTS.

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