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3 years ago

Explain the Corona discharge?

Engineering

1 answer:

rosijanka [135]3 years ago

8 0

Answer:

• Corona discharge means neutralization of charge action at a sharp point

example; a pear shaped conductor, lightening conductor, van de graaf generator.

Explanation:

• In corona discharge, When a sharp conductor is placed somewhere in open space. The charges of opposite chrage attract the opposite ions in the air around that conductor.

• This increases the charge density and electric field intensity at the sharp point, this neutralises the charge at sharp point hence a discharge known as corona discharge occurs.

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Answer / Explanation:

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Length of the rod (L) = 0.6m

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Size factor; k b = 0.85

Now by using mechanical engineering design data book,

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Se¹ = 385 M P a

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Assume Kb = 0.85 (check later)

Se = Kₐ Kb Se¹

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S e = 160 M P a

By using design data book,

a = ( f Sut )² / Se

b = - 1 / 3 log f Sut / Se

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Sf = 2553 (10⁴) ⁻ ⁰.²⁰⁰⁵

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M max = 2000 × 0.6

M max = 1200 Newton per meter

= M ( b/2) / I = M ( b/2) / bb³/12

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S f = n × σ a

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b = 30 m m

So, we assume the size factor, so the expression for checking the size factor is,

By using design data book,

de = 0.808 (hb)∧ 1/2

de = 0.808 b

de = 0.808 × 30

de = 24.2

Kb = ( 24.2 / 7.62) ∧-0.107

Kb = 0.88

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Explain the Corona discharge?​

Explain the Corona discharge?