NDLI: Research on dielectric loss characteristic of 550kV AC resin-impregnated paper oil-SF bushing

Content Provider	IEEE Xplore Digital Library
Author	Hu, W. Xie, X.J. Zhang, S.L. Xu, Z.M. Liu, P. Cheng, J.W. Peng, Z.R.
Copyright Year	2012
Description	Author affiliation: China Electric Power Research Institute, State Grid Corporation of China, No. 143 Luoyu Road. Wuhan, Hubei, China, 430074 (Xie, X.J.; Xu, Z.M.) \|\| State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road., Shanxi, China, 710049 (Hu, W.; Zhang, S.L.; Liu, P.; Cheng, J.W.; Peng, Z.R.)
Abstract	This paper studied the dielectric loss characteristic of the first 550kV AC RIP oil-SF bushing designed and manufactured by China. A testing platform was established in the 1000kV UHV AC testing base of China, and thermal stability test of the bushing at different temperature were carried out on the platform. The influence rules of temperature and voltage on the dielectric dissipation factor (tanδ) of the bushing was obtained in this paper. Test results demonstrated that the tanδ of the bushing decreases slowly while testing time increasing, and decrease to a steady value at every test temperature (25°C∼90°C). When the bushing reaches thermal-stabilization at a certain temperature, its tand varied a little with testing voltages. Similar to the pure epoxy, the tand of the RIP oil-SF bushing decreases first and then increases with the increase of temperature, that is accordance to the dielectric's physicochemical characteristic in the alternative electric field. The tested bushing shows good insulating characteristic in the testing temperature range, the main insulation material of the bushing has stable and reliable insulating performance. The testing results can provide reference for researching 1100kV AC RIP Oil-SF bushing in China.
Starting Page	1
Ending Page	6
File Size	1089356
Page Count	6
File Format	PDF
ISBN	9781467328524
ISSN	21609241
e-ISBN	9781467328517
DOI	10.1109/ICPADM.2012.6318995
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-24
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Thermal stability Voltage measurement Switches thermal stability oil-SF6 bushing resin-Impregnated Paper dielectric loss factor tanδ
Content Type	Text
Resource Type	Article

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