Corona loss in DC transmission supply is _________. 

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SSC JE Electrical 14 Nov 2022 Shift 3 Official Paper
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  1. 10 times more than AC
  2. infinite
  3. zero
  4. less than AC

Answer (Detailed Solution Below)

Option 4 : less than AC
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Detailed Solution

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Concept

The corona loss in a transmission line is directly proportional to the operating frequency.

PC α (f + 25)

where, PC = Corona loss

f = Operating frequency 

Calculation

fdc = 0 Hz and fac = 50 Hz

Hence, the corona loss in DC transmission is less than AC.

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