7%) Problem 13: Suppose you needed to transmit 110 MW ofAC power at a voltage of

Question

7%) Problem 13: Suppose you needed to transmit 110 MW ofAC power at a voltage of 35 kV 33% Part (a) What current (in kA) is required to do this? Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 8 (0% per attempt) de tailed view cos0 tan Sin cotan0asin atan acotansinhO cosh0 acos tanhOcotanh0 END Degrees Radians BACKSPACE DEL CLEAR Submit Hint I give up! lins: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. 33% Part (b) Find the power loss in a 1.00 transmission line in MW 33% Part (c) What percent loss does this represent?

Explanation / Answer

a)

Required current is

I=P/V =(110*106)/(35*103)

I=3142.86 A=3.143 KA

b)

Power loss in transmission line

Ploss =I2R =3142.862*1

Ploss =9.88 MW

c)

% Loss =(9.88/110)*100=8.98%

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