Long term investigation of thermal behaviour of 110 kV underground transmission lines in the Belgrade area

Sredojevic, M.R.; Naumov, R.M.; Popovic, Dj.P.; Simie, M.D.

doi:10.1049/cp:19970548

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present paper uses an enhanced version of the previously mentioned model, which now incorporates also the effects of the heat transfer by radiation and solar emission, to evaluate the loading capacity of a pair of three-phase cable systems sharing the same trench. These two phenomena partially compensate each other at specific ambient condition, which explains the good behavior of the model suggested in [8] when compared with experimental results [9]. However, the model presented in this paper accounts for all processes affecting the heating of cables and, therefore, can be applied in all ambient conditions appearing in practice.…”

Section: Introductionmentioning

confidence: 59%

Evaluation of the loading capacity of a pair of three-phase high voltage cable systems using the finite-element method

Nahman

Tanaskovic²

2011

Electric Power Systems Research

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 59%

Evaluation of the loading capacity of a pair of three-phase high voltage cable systems using the finite-element method

Nahman

Tanaskovic²

2011

Electric Power Systems Research

View full text Add to dashboard Cite

“…The developed model was checked for the considered 110‐kV cable. The temperatures at various points in the cable trench have been calculated using the suggested model and compared with the field‐test data . The cable load pattern was as depicted in Figure with 250‐A peak current.…”

Section: Applicationmentioning

confidence: 99%

“…The cable model, indicated in Figure 4 by a bold printed rectangle, is plotted more detailed in Figure 5. [15]. The cable load pattern was as depicted in Figure 3 with 250-A peak current.…”

Section: Cable and Trench Datamentioning

confidence: 99%

Calculation of the ampacity of high voltage cables by accounting for radiation and solar heating effects using FEM

Nahman

Tanaskovic²

2011

Int. Trans. Electr. Energ. Syst.

View full text Add to dashboard Cite

SUMMARY The paper presents a finite‐element model for the evaluation of the ampacity of an underground 110‐kV three‐phase system of cables in normal operation and in case of emergency. The proposed model takes the effects of convection, radiation, and solar heating at the trench surface into account, which enhances the previous approaches. The calculations performed have shown that these phenomena affect the heating of cables and that the IEC approach that treats the trench surface as an isothermal plane at ambient temperature, widely used in practice, might underestimate the ampacity of cables in certain cases. The model considers in detail the shape and construction of the cable trench, and the thermal properties of backfilling materials and concrete and asphalt covers including the effects of the drying out of soil. The effects of various approximations have been also investigated. The model has been applied to a real life example, and the calculation results have been compared to some experimental data. Copyright © 2011 John Wiley & Sons, Ltd.

show abstract

Long term investigation of thermal behaviour of 110 kV underground transmission lines in the Belgrade area

Cited by 2 publications

References 0 publications

Evaluation of the loading capacity of a pair of three-phase high voltage cable systems using the finite-element method

Evaluation of the loading capacity of a pair of three-phase high voltage cable systems using the finite-element method

Calculation of the ampacity of high voltage cables by accounting for radiation and solar heating effects using FEM

Contact Info

Product

Resources

About