Study of the Model of Electrical Field Distribution of Bundle Conductor After Energized Rime Icing

doi:10.11985/2018.08.008

Abstract

Abstract:

Rime makes conductor surface become extremely rough, growth of ice tree can distort the electrical field seriously and cause harm to safe operation of the power system. Therefore a series test for single, double and triple bundle conductors are implemented in the artificial climate chamber, combining with the rime morphology to establish icing trees’electrical field model, using finite element method for simulation analysis. The results shows that the tip of icing tree will seriously increase the bundled conductor’surface electrical field. Ice-tree growing longer and sharper will make the electric field distorted more serious. Conductor surface electrical field increases fluctuant with the icing electric increasing. More sub-conductors will get lower surface electrical field than others.

Key words: Bundle conductor, energized icing, rime, electric field distribution, finite element method

CLC Number:

TM85

Zhang Man,Ran Junde,Tian Zhihua,Fei Xigang,Zou Can,Hu Fei. Study of the Model of Electrical Field Distribution of Bundle Conductor After Energized Rime Icing[J]. Journal of Electrical Engineering, 2018, 13(8): 43-48.

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	场强/ (kV/cm)	单导线	双分裂		三分裂
	场强/ (kV/cm)	单导线	1#	2#	1#	2#	3#
冰厚 /mm	0	4.5	4.6	4.5	4.6	4.5	4.6
	5	5.8	5.9	5.8	5.9	5.7	5.8
	10	6.5	6.4	6.2	6.5	6.2	6.4
	15	5.2	5.3	5.1	5.3	5	5.1
	20	4.6	4.7	4.6	4.7	4.6	4.7
冰树枝底径 /mm	0	1.55	1.53	1.56	1.53	1.53	1.54
	5	1.56	1.55	1.54	1.57	1.56	1.53
	10	1.54	1.52	1.56	1.54	1.54	1.54
	15	1.57	1.55	1.58	1.53	1.53	1.56
	20	1.54	1.57	1.55	1.54	1.55	1.55
冰树枝高度 /mm	0	1.45	1.43	1.45	1.44	1.42	1.44
	5	2.54	2.51	2.53	2.53	2.54	2.51
	10	5.15	5.17	5.13	5.17	5.19	5.18
	15	1.83	1.79	1.81	1.82	1.85	1.83
	20	1.01	1.1	1.07	1.07	1.05	1.03