NDLI: A comparison of AC and DC surface discharges characteristics for silicone rubber

Content Provider	IEEE Xplore Digital Library
Author	Jeong-Yun Heo Han-Goo Cho Lee-Yong Soon
Copyright Year	2012
Description	Author affiliation: Technology Institute, Sang Won Co., Ltd., Ansan, Korea (Lee-Yong Soon) \|\| Nano Fusion Technology Center, Korea Electrotechnology Research Institute (KERI), Changwon, Korea (Jeong-Yun Heo; Han-Goo Cho)
Abstract	High voltage direct current (HVDC) transmission technology has been known as a green energy transfer technology to make large capacity transmission possible and allow towers to be compact with low power loss and lower insulation level than AC. However the overhead insulators of HVDC capture a lot of dirty materials due to specific static electricity phenomenon of DC differently from AC scheme. As this change of surface characteristics not only reduces water repellent due to leak current but also leads destructions such as tracking, erosion, etc. HVDC overhead insulators significantly require contamination resistance performance. Thus this paper has considered surface discharge and tracking characteristics under AC and DC with silicone rubber that has been widely used as an insulation material. As DC has constant minor flame discharge and electrical corrosion, metal is ionized by the current and the electrode is consumed. To the contrary, as AC is alternating electric field, it has occasional discharges with short discharging time, less erosion and little mass lost on the electrode.
Starting Page	629
Ending Page	632
File Size	338368
Page Count	4
File Format	PDF
ISBN	9781467310192
e-ISBN	9781467310208
DOI	10.1109/CMD.2012.6416224
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-23
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Temperature distribution AC Surface discharges Surface contamination surface discharges Insulators Discharges (electric) electrical corrosion Silicone rubber DC
Content Type	Text
Resource Type	Article

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