Q2. 30, 220 kV, 50 Hz, 115 km long transmission line consisting of three conductors each of 20 mm diameter and spaced 1-5 m apart in an equilateral triangle formation. The temperature of air is 40°C and the atmospheric pressure is 600 mm of mercury. Take irregularity factor as 0-9. lonization of air may be assumed to take place at a maximum voltage gradient of 30 kV/ cm. Estimate 1. Critical disruptive voltage 2. Visual critical Voltage 3. Power loss due to corona

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.23P
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Q2. 30, 220 kV, 50 Hz, 115 km long transmission line consisting of three conductors each of 20 mm
diameter and spaced 1-5 m apart in an equilateral triangle formation. The temperature of air is 40°C and
the atmospheric pressure is 600 mm of mercury. Take irregularity factor as 0-9. lonization of air may be
assumed to take place at a maximum voltage gradient of 30 kV/ cm. Estimate
1. Critical disruptive voltage
2. Visual critical Voltage
3. Power loss due to corona
Transcribed Image Text:Q2. 30, 220 kV, 50 Hz, 115 km long transmission line consisting of three conductors each of 20 mm diameter and spaced 1-5 m apart in an equilateral triangle formation. The temperature of air is 40°C and the atmospheric pressure is 600 mm of mercury. Take irregularity factor as 0-9. lonization of air may be assumed to take place at a maximum voltage gradient of 30 kV/ cm. Estimate 1. Critical disruptive voltage 2. Visual critical Voltage 3. Power loss due to corona
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