Research on Dynamic Characteristics of 10kv Three-Core Cable Layers of Material Thermal Resistance

Abstract:

The paper focus on the influence of the deviation of material thermal resistance coefficient on the conductor temperature calculations, based on the three-core cable thermal circuit model. Meanwhile we also design a temperature rise test of the 10kv three-core cable in step current, measuring the temperature of the cable structure in different steady state. Then we calculate the thermal resistance of the cable body and the thermal resistance of the layer material , find the change law of the thermal resistance with the temperature and analyses the effect of the dynamic characteristic of the material thermal resistance on the conductor temperature calculations in the three-core cable thermal circuit model.

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 588-592
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.588
• Online since: August 2014
• Authors: Wen Xiang Li, Rui Bo Su, Gang Liu, Peng Wang, Zhen Ning Pan
• Keywords: 10kv Three-Core Cable, Air Laying, Thermal Resistance Coefficient

References

[1] Gu Wei-lan, Yang Yan-sheng. Effect of temperature on thermal contact resistance[J]. Journal of Nanjing University of Aeronautics and Astronautics, 1994, 26(3): 342-350.

[2] Gong Zhao, Yang Chun-xin. A simplified theoretical model of the thermal contact resistance[J]. Journal of Engineering Thermophysics, 2007, 28(5): 850-852.

[3] Qiu Guan-yuan. Theory analysis of a network[M]. Bei Jing: Science Press, (1984).

[4] LENHART L，ECKHARD K, FOHRER N，et al．Comparison of two different approaches of sensitivity analysis[J]．Physics and Chemistry of the Earth，2002, 27: 645-654.

DOI: 10.1016/s1474-7065(02)00049-9

[5] Li You-rong, Wu Shuang-ying. Analysis of heat transfer thermal circuit teaching[J]. Higher Architectural Education，2012，21(1)：51-53.

[6] Song Chang-hua. Application of heat circuit graph analysis method in the course of heat transfer[J]. Journal of Chong qing Electric Power College, 2004, 9(3): 19-24.

[7] Meng Yu-yong, Wang Jian-jun, Zhou Li and so on. Study on thermal conductivity of different steel grades with the variation of temperature[J]. 2013, 34(3): 97-106.