Surface resistance measurements on nonceramic insulators

Gorur, R.S.; Schneider, H.; Cartwright, John; Beausajour, Y.; Kondo, Kenta; Gubanski, S.M.; Hartings, R.; Shah, M.; McBride, Joseph; Tourreil, C. de; Szilagyi, Z.

doi:10.1109/61.956772

Cited by 52 publications

(21 citation statements)

References 4 publications

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“…Other polymer families such as EPDM and epoxy, and porcelain belong to the inert (or passive) category. For the same ESDD, the surface resistance values are much lower for inert material than for active materials [31]. Table 5 shows the measured surface resistance under wet conditions for different levels of ESDD.…”

Section: Role Of Active and Non-active Materialsmentioning

confidence: 99%

“…For example, for the same ESDD, the surface resistance values are much lower for hydrophilic materials like porcelain, EPDM and epoxy than silicone rubber whose surface is hydrophibic [30]. Experiments were conducted to investigate the relationship between the ESDD and surface resistance, in a fog chamber using conditions specified by the IEEE Task Force on surface resistance measurements [31,26].The results were used to convert conductivity to ESDD in the program. The measurement was conducted on three types of insulators, whose details are shown in Table 2.…”

Section: Conversion From Conductivity To Esddmentioning

confidence: 99%

See 1 more Smart Citation

Modeling flashover of AC outdoor insulators under contaminated conditions with dry band formation and arcing

Liu

Gorur

2012

IEEE Trans. Dielect. Electr. Insul.

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Section: Role Of Active and Non-active Materialsmentioning

confidence: 99%

Section: Conversion From Conductivity To Esddmentioning

confidence: 99%

Modeling flashover of AC outdoor insulators under contaminated conditions with dry band formation and arcing

Liu

Gorur

2012

IEEE Trans. Dielect. Electr. Insul.

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“…Fig. 4 shows the low voltage surface leakage current measurement [12] of only two sheds at a voltage stress of 20 V/mm. Repeated leakage current measurements over several days recorded current as high as 24 mA, demonstrating the unusually high conductance and adherence of the droppings.…”

Section: Characteristics Of Contamination Nesting and Roostingmentioning

confidence: 99%

Preventive Measures to Reduce Bird Related Power Outages—Part II: Streamers and Contamination

Sundararajan

Burnham

Carlton

et al. 2004

IEEE Trans. Power Delivery

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“…COMPOSITE insulators made of silicone rubber are proverbially used as outdoor insulation due to their advantages of light weight, higher impact strength, better anti-contamination performance and lower cost [1][2][3]. As the insulators are subject to various environments including soluble and non-soluble contamination, the surface performance in severe conditions has caused more concerns about the reliability of transmission and distribution lines as well as the substation equipments [4,5].…”

Section: Introductionmentioning

confidence: 99%

Recurrent plot analysis of leakage current on flashover performance of rime-iced composite insulator

Liu

2010

IEEE Trans. Dielect. Electr. Insul.

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Due to the wide application of composite insulators in the power industry, the insulator performance is challenged by various environments. To determine the flashover performance of rime-iced composite insulator, laboratory investigation was carried out in an artificial climate chamber to simulate different rime-ice morphology on the insulator surface. The configuration and characteristics of the rime-ice were demonstrated to establish the relationship between the rime-ice parameters and the flashover performance. In accordance with the discharge phenomena, the transition of leakage current (LC) until the flashover was analyzed by using a recurrent plot approach. After extracting the high frequency components by using a wavelet transform technique, the LC just before the flashover was extended to m dimensional phase space based on a phase space reconstructed method. The recurrent plot was obtained to reveal the non-linear characteristics of LC for identifying the dynamic behaviors on the insulator surface. It is shown that the propagation and properties of the discharges can be graphically projected on the topological structure of recurrent plot as a function of the rime-ice parameters. The process and underlying mechanism of flashover performance of rime-iced composite insulator can be visually reflected by the recurrent plot and the quantitative indicators of LC.Index Terms -composite insulator, rime-iced condition, flashover, leakage current, recurrent plot, dynamic behavior.

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Surface resistance measurements on nonceramic insulators

Cited by 52 publications

References 4 publications

Modeling flashover of AC outdoor insulators under contaminated conditions with dry band formation and arcing

Modeling flashover of AC outdoor insulators under contaminated conditions with dry band formation and arcing

Preventive Measures to Reduce Bird Related Power Outages—Part II: Streamers and Contamination

Recurrent plot analysis of leakage current on flashover performance of rime-iced composite insulator

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