Thermal Rating of Overhead Insulation-Covered Conductors in the Steady-State Regime

Girshin, S. S.; Goryunov, V. N.; Кузнецов, Е. А.; Петрова, Е. В.; Бубенчиков, Антон Анатольевич; Batulko, Dmitrii

doi:10.1051/matecconf/20167010006

Cited by 2 publications

(4 citation statements)

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“…3. Calculations of the temperature and active power losses in the overhead conductors are carried out according to equations (7), (6).…”

Section: Simulation and Resultsmentioning

confidence: 99%

“…The temperature of the outer insulation surface in the steady state mode can be determined based on the converted heat balance equation [6] for two models: 1) Calculation when there is natural convection; 2) Calculation when there is forced convection. The heat balance of the insulation-covered conductor in a steady state mode can be written as follows:…”

Section: Temperature Determination On Outer Surface Of Conductor'smentioning

confidence: 99%

“…Equations (12), (14) can be solved with the method of iterations. After calculating the temperature of the conductor insulation outer surface the conductor temperature is calculated according to equation 7and active power losses according to equation (6).…”

Section: Temperature Determination On Outer Surface Of Conductor'smentioning

confidence: 99%

“…temperature depends on the mode and climatic factors: current density, ambient temperature, wind strength and direction, solar radiation intensity, the conductor type [4], [6]. To complete successfully the task of determining the conductor temperature and to increase capacity in real time we are to realize the current value flowing through the power line.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Insulation on Thermal Behavior of Overhead Line Conductors

Кузнецов¹,

Goryunov²,

Girshin³

et al. 2018

IJMERR

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To provide the accurate thermal rating of overhead power lines is required to consider the conductor temperature depending on a variety of weather factors. New types of conductors, such as overhead insulation-covered conductors are widely used in electrical networks. Wellknown IEEE 738 and CIGRE standards calculate the bare overhead conductors only and are not applicable for thermal rating of overhead insulation-covered conductors. Numerical methods are able to calculate the insulated conductors, but have many drawbacks, such as the difficulty of modeling and low computation speed. The authors propose an analytical mathematical model to determine the thermal rating both overhead insulation-covered and bare conductors. Results of temperature calculation and active power losses calculation for overhead insulation-covered and bare conductors with the same cross section at selected weather conditions and changes in load current have been presented. Neglect of insulation can lead to errors in calculating of temperature up to 30%.  Index Terms-insulation-covered conductors; bare conductors; overhead lines; conductor temperature; thermal rating; active power losses; weather conditions Vladimir N. Goryunov received the D.Sc. degree in electrical engineering from Moscow Power Engineering Institute, Moscow, Russia in 1992. Currently, he is a Professor and Head of

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“…3. Calculations of the temperature and active power losses in the overhead conductors are carried out according to equations (7), (6).…”

Section: Simulation and Resultsmentioning

confidence: 99%

Section: Temperature Determination On Outer Surface Of Conductor'smentioning

confidence: 99%