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udit narayan mishra

· started a discussion

· 1 Months ago

corona loss (Question:138936.0)

corona loss description

Question:

The corona loss on a particular system at 50 Hz is 1 KW/km/phase what is the corona loss at 60 Hz in KW/km/phase?

Options:
A) 0.83
B)

1.0

C)

1.13

D)

1.2

Solution:
Ans: (c) Use peek’s formula, P \(\alpha\) (f + 25)

\(\therefore\cfrac{P_2}{1}=\cfrac{60+25}{50+25}\)

\(\Rightarrow P_2=1.13\) KW/km/phase.

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