he geometric mean radius of the conductor in a 380 kV, 120 km long transmission line 24 mm. The roughness factor of the conductor is 0,98. Geometric mean length between phases of conductors 3,2 m. Air pressure across the line 725 mmHg, temperature 18 degrees Celcius and the conductor surface temperature is 85 degrees Celsius. According to this, a) Calculate the voltage at which ionization starts and the corona voltage. b) Find the corona loss for operating voltage with Peek formula. c) Calculate the total corona loss of the line with the Peek formula for a 15% increase in operating voltage.
he geometric mean radius of the conductor in a 380 kV, 120 km long transmission line 24 mm. The roughness factor of the conductor is 0,98. Geometric mean length between phases of conductors 3,2 m. Air pressure across the line 725 mmHg, temperature 18 degrees Celcius and the conductor surface temperature is 85 degrees Celsius. According to this, a) Calculate the voltage at which ionization starts and the corona voltage. b) Find the corona loss for operating voltage with Peek formula. c) Calculate the total corona loss of the line with the Peek formula for a 15% increase in operating voltage.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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The geometric mean radius of the conductor in a 380 kV, 120 km long transmission line 24
mm. The roughness factor of the conductor is 0,98. Geometric mean length between phases of conductors 3,2 m. Air pressure across the line 725 mmHg, temperature 18 degrees Celcius and the conductor surface temperature is 85 degrees Celsius.
According to this,
a) Calculate the voltage at which ionization starts and the corona voltage.
b) Find the corona loss for operating voltage with Peek formula.
c) Calculate the total corona loss of the line with the Peek formula for a 15% increase in operating voltage.
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