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THESE QUESTIONS ARE FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS 9. Define and explain string efficiency. Can...

THESE QUESTIONS ARE FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS

9. Define and explain string efficiency. Can its value be equal to 100% ?

10. Show that in a string of suspension insulators, the disc nearest to the conductor has the highest voltage across it.

11. Explain various methods of improving string efficiency.

12. What is corona? What are the factors which affect corona ?

13. Discuss the advantages and disadvantages of corona.

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