Power system operation and control
Set : 3
21. Dog conductor use for
...
Answer is B)
66 kv .
22. What is current carrying capacity for 'Mossse' conductor at 75°C ?
...
Answer is D)
800 Amp .
23. For air ionizetion minimum electric field intensity is ?
...
Answer is A)
30 kV/cm .
24. For corona which is not true
...
Answer is D)
Low voltage .
25. due to corona ?
...
Answer is D)
All of above .
26. Which factor affect the corona ?
...
Answer is D)
All .
27. At Which voltage corona produce
...
Answer is B)
30 kV/cm
28. Air break down voltage in rms is ?
...
Answer is C)
21 kV/cm
29. What is surface factor for stranded conductor ?
...
Answer is D)
0.82
30. which is not a insulators properties?
...
Answer is D)2
good conductivity
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