Search Results - "2012 IEEE International Symposium on Electrical Insulation"

FRA vs. short circuit impedance measurement in detection of mechanical defects within large power transformer by Bagheri, M., Naderi, M. S., Blackburn, T., Phung, T.

“…Power transformers are supposed to be and remain in service in various environmental circumstances under different electrical and mechanical stresses. Base on…”
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Ac and transient electric field distributions along a 380 kV V-string insulator by Ilhan, S., Ozdemir, A., Jayaram, S. H., Cherney, E. A.

“…This paper presents the results of a study of the ac and the transient electric field distributions along a 380 kV V-string of glass cap-and-pin suspension…”
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Study on aging characteristics of silicone rubber insulator sheds using FTIR by Hui Zhang, Youping Tu, Yi Lu, Zhuo Xu, Conghui Chen, Lifang Xie

“…In order to explore a method for assessing the aging characteristics of composite insulators, the composite insulators in service were studied using the…”
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Dielectric frequency response measurements and dissipation factor temperature dependence by Werelius, P., Jialu Cheng, Ohlen, Matz, Robalino, D. M.

“…The condition of the insulation is an essential aspect for the operational reliability of electrical power transformers, generators, cables and other high…”
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Water absorption and water vapor permeation characteristics of HTV silicone rubber material by Lutz, B., Guan, Z., Wang, L., Zhang, F., Lu, Z.

“…The water absorption characteristics of a HTV silicone rubber material were investigated at different relative air humidity (RH). The two-sided water…”
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3D electric field computation of a composite cross-arm by Peesapati, V., Zachariades, C., Li, Q., Rowland, S. M., Cotton, I., Green, P. R., Allison, F., Chambers, D.

“…The use of composite insulators for overhead transmission lines has increased in the past decade. Various designs and models are now available for a wide range…”
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Simultaneous measurement of partial discharge using TEV, IEC60270 and UHF techniques by Reid, A. J., Judd, M. D., Duncan, G.

“…This paper explores a means of quantifying the relationship between transient earth voltage (TEV), ultra-high-frequency (UHF) and IEC60270 partial discharge…”
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Effect of nanoparticles on electrical characteristics of transformer oil-based nanofluids impregnated pressboard by Zhou You, Zhong Yu-xiang, Chen Mu-tian, Zhang Sheng-nan, Du Yue-fan, Lv Yu-zhen, Li Chengrong, Liu Tong

“…In order to improve the electrical characteristics of transformer oil-impregnated pressboard, transformer oil-based nanofluids were used to impregnate…”
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Charge behavior in Palm Fatty Acid Ester Oil (PFAE) / pressboard composite insulation system under voltage application by Kojima, H., Hayakawa, N., Okubo, H., Kato, K., Kawanishi, K., Koide, H.

“…Palm Fatty Acid Ester Oil (PFAE) is one of the most promising environment-friendly biodegradable insulating oils for transformers. PFAE has significant…”
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Study on the oxidative stability of palm fatty acid ester (PFAE) as an insulating oil for transformers by Kano, T., Suzuki, T., Oba, R., Kanetani, A., Koide, H.

“…Today, esters obtained from plant oils are attracting attention as insulating oils from the viewpoints of renewable resources and low environment impact in the…”
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Gassing behavior of various alternative insulating liquids under thermal and electrical stress by Jovalekic, M., Vukovic, D., Tenbohlen, S.

“…Dissolved gas in oil analysis (DGA) has been used for many years successfully for diagnosis and condition monitoring of mineral oil filled transformers. Due to…”
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Gases dissolved in natural ester fluids under thermal faults in transformers by Yu Liu, Jian Li, Zhaotao Zhang

“…Natural ester fluids are biodegradable and fire-resistant liquid dielectrics which have been used in power transformers in recent years. This paper presents…”
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A coastal trial facility for high voltage composite cross-arms by Zachariades, C., Cotton, I., Rowland, S. M., Peesapati, V., Green, P. R., Chambers, D., Queen, M.

“…A trial site has been developed within a substation on the North East coast of Scotland for electrical testing high voltage composite cross-arms. A 400 kV…”
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Dielectric and thermal properties of boron nitride and Silica epoxy composites by Couderc, H., Frechette, M., Savoie, S., Reading, M., Vaughan, A. S.

“…Samples containing only submicrometric filler (BN), only nanometric filler (Silica) and both fillers were prepared by gravity moulding. A pure epoxy sample was…”
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Electrical conductivity of medium voltage XLPE insulated cables by Hestad, O. L., Mauseth, F., Kyte, R. H.

“…Improved knowledge on the charge transport phenomena in XLPE is important to control the field distribution in the cable insulation, and thus further improve…”
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Numerical simulations of ice-covered EHV post station insulator performance equipped with booster sheds by Volat, C., Emran, S. M. A., Farzaneh, M.

“…The main objective of this paper is to study numerically the influence of addition of 6 booster sheds (BS) to 2 units of EHV porcelain post insulator on their…”
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Partial discharge on-line monitoring of outdoor insulators by Shurrab, I. Y., El-Hag, A., Assaleh, K., Ghunem, R.

“…The main objective of this study is to investigate the feasibility of using an RF antenna to detect partial discharges in outdoor insulators. Moreover, the…”
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Improvements of the transformer insulation XY model including effect of contamination by Jialu Cheng, Werelius, Peter, Robalino, Diego, Ohlen, M.

“…Dielectric Frequency Response, DFR (also known as Frequency Domain Spectroscopy, FDS), was introduced more than 20 years ago and has been thoroughly evaluated…”
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Alarm management in permanent PD monitoring for generators by Fornasari, L., Montanari, G. C., Cavallini, A.

“…Permanent Partial Discharge Monitoring (PDM) systems were installed in several generators in South America from 2009 to 2011. The installation fell within a…”
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Quantifying the operational benefits of new HV cable systems in terms of dielectric design parameters by Pilgrim, J. A., Lewin, P. L., Vaughan, A. S.

“…In recent years, a significant volume of work has been undertaken on the development of novel dielectric materials which offer improvements in a variety of…”
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