The insulation strength of an  EHV transmission line is mainly governed by 

  • ALoad power factor
  • BSwitching over-voltages 
  • CHarmonics
  • DCorona 
Correct Answer : (B)

Switching over-voltages 

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The insulation strength of an  EHV transmission line is mainly governed by Switching over-voltages.


The most serious consequence of a major uncleared short-circuit fault could be


Which of the following results in a symmetrical fault?

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