Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2016 - zeszyt 5

Investigation of Contact Resistance Influence on Power Cable Joint Temperature Based on 3-D Coupling Model

10.15199/48.2016.05.03

nr katalogowy: 98167
10.15199/48.2016.05.03

Aiming at the overheating problem of cable joint, a 3-D finite element model of a single-core cable joint considering the coupling of electromagnetic field and temperature field has been built. In order to consider the heat losses generated by contact resistance of cable joint, the equivalent conductivity is calculated. The validity of the model and calculation method is verified by the comparison with analytical values. Streszczenie. Do analizy zagadnienia przegrzania połączenia kablowego zbudowano trójwymiarowy model MES przy uwzględnieniu sprzężenia pola elektromagnetycznego i temperaturowego. W celu określenia strat ciepła wytwarzanego w rezystancji styku połączenia kablowego obliczono konduktywność zastępczą. (Badanie wpływu rezystancji styku połączenia kablowego na temperaturę za pomocą trójwymiarowego modelu sprzężonego). Keywords: Cable joint, Electromagnetic field, Temperature field, Contact resistance. Słowa kluczowe: Połączenie kablowe, Pole elektromagnetyczne, Pole temperaturowe, Rezystancja styku. Introduction Many years of operation experience has shown that due to the existence of contact resistance, poor performance of insulation material, imperfect manufacturing process and bad installation environment, more than 70% of the failures occur at the location of cable joints in power lines. As the weakest link of power cable, overheat of cable joint can lead to open circuit, short circuit, even fire and explosion of power cable and this may result in significant economic losses. [1]. Therefore, temperature is an important indicator to reflect that the operation state of cable joint is good or not. In previous studies, many scholars focused on the temperature field and ampacity using 2-D model of cable body [2-6]. And there are two methods to calculate the temperature of cable body: one is analytical method based on IEC-60287, another is numerical method [7-9] including boundary element method (BEM), finite element meth[...]

Bibliografia

[1] Yomna O, et al, Thermal modeling of medium voltage cable terminations under square pulses, IEEE Trans. Dielectr. Electr. Insul., vol. 21, no. 3, pp. 932-939, Jun. 2014.
[2] Rasmus Olsen, et al, Modelling of dynamic transmission cable temperature considering soil-specific heat, thermal resistivity, and precipitation, IEEE Trans. Power Del., vol. 28, no. 3, pp. 1909-1917, Jul. 2013.
[3] Ali Sedaghat, et al, Thermal analysis of power cables in free air: Evaluation and improvement of the IEC standard ampacity calculation, IEEE Trans. Power Del., vol. 29, no. 5, pp. 2306- 2314, Oct. 2014
[4] James A, et al, Rating of cables in unfilled surface troughs, IEEE Trans. Power Del., vol. 27, no. 2, pp. 993-1001, Apr. 2012.
[5] Merkebu Z, et al, Comparison of air-gap thermal models for MV power cables inside unfilled conduit, IEEE Trans. Power Del., vol. 27, no. 3, pp. 1662-1669, Jul. 2012.
[6] George J, et al, Ampacity calculation for cables in shallow troughs, IEEE Trans. Power Del., vol. 25, no. 4, pp. 2064-2072, Oct. 2010.
[7] G. Gela, J. J. Dai, Calculation of thermal fields of underground cables using the boundary element method, IEEE Trans. Power Del., vol. 5, no. 3, pp. 1341-1347, Oct. 1988.
[8] GJ. Anders, et al, New approach to ampacity evaluation of cables in ducts using finite element technique, IEEE Trans. Power Del., vol. 2, no. 4, pp. 969-975, Oct. 1987.
[9] NgocKhoa Nguyen, et al, New approach of thermal field and ampacity of underground cables using adaptive hp- FEM, in Proc. IEEE PES 2010 General Meeting, pp. 1-5, April 19-22, New Orleans, LA, USA.
[10] M’hemed Rachek and Soraya Nati Larbi, Magnetic eddycurrent and thermal coupled models for the finite-element behavior analysis of underground power cables, IEEE Trans. Magn., vol. 44, no. 12, pp. 4739-4746, Dec. 2008.
[11] Li Ling, et al, Thermal field calculation and influencing parameters analysis of gas insulated busbars, Transactions of China Electrotechnical Society, vol. 27, no. 9, pp. 264-270, Sep, 2012.
[12] S.W.Kim, et al, Coupled Finite-element-Analytic Technique for Prediction of Temperature Rise in Power Apparatus, IEEE Trans. Magn., vol. 38, no. 2, pp. 921-924, Mar. 2002.
[13] Juan Carlos, et al, Influence of different types of magnetic shields on the thermal behavior and ampacity of underground power cables," IEEE Trans. Power Del., vol. 26, no. 4, pp. 2659-2667, Oct. 2011.
[14] Y. Shiming, T. Wenquan, Heat transfer, Higher Education Press, Beijing, China, 2006 (In Chinese).
[15] Lin Shuyi, Xu Zhihong, Simulation and analysis on the threedimensional temperature field of AC solenoid valves, (in Chinese) Proce. CSEE, vol. 32, no. 36, pp. 156-164, Dec, 2012.
[16] Electric cables - Calculation of the current rating: Current rating equations (100% load factor) and calculation of losses - general, IEC Std. 60287-1-1, 2nd ed., 2006.
[17] Electric cables - Calculation of the current rating: Current rating equations (100% load factor) and calculation of losses - thermal resistance, IEC Std. 60287-2-1, 2nd ed., 2006.

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