Geometric mean radius of a 400 kV, 300 km long three-phase transmission line 20 mm. The roughness factor of the conductor is 0.82 and the geometric mean interphase length is 10 m. The air pressure along the line is 760 mm Hg and the temperature is 23 °C. In this transmission line; a)- Calculate the voltage at which ionization starts due to impact and the corona voltage. b)- Find the total corona loss in the three-phase system for the operating voltage with the Peek formula. c)- Find the total corona loss for the 10% increase in the operating voltage.
Geometric mean radius of a 400 kV, 300 km long three-phase transmission line 20 mm. The roughness factor of the conductor is 0.82 and the geometric mean interphase length is 10 m. The air pressure along the line is 760 mm Hg and the temperature is 23 °C. In this transmission line; a)- Calculate the voltage at which ionization starts due to impact and the corona voltage. b)- Find the total corona loss in the three-phase system for the operating voltage with the Peek formula. c)- Find the total corona loss for the 10% increase in the operating voltage.
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Geometric mean radius of a 400 kV, 300 km long three-phase transmission line 20 mm. The roughness factor of the conductor is 0.82 and the geometric mean interphase length is 10 m. The air pressure along the line is 760 mm Hg and the temperature is 23 °C. In this transmission line;
a)- Calculate the voltage at which ionization starts due to impact and the corona voltage.
b)- Find the total corona loss in the three-phase system for the operating voltage with the Peek formula.
c)- Find the total corona loss for the 10% increase in the operating voltage.
b)- Find the total corona loss in the three-phase system for the operating voltage with the Peek formula.
c)- Find the total corona loss for the 10% increase in the operating voltage.
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