The performance of XLPE water tree resistant insulation systems against the requirements of DIN VDE 0276-605/A3

Aarts, Mark; Kjellqvist, Jerker; Mendelsohn, A.; Vaterrodt, K.

doi:10.1049/cp:20050967

Cited by 2 publications

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“…AC breakdown strength data were collected to observe any electrical effects caused by addition of the silicon dioxide. To gauge the reliability of the data, beta values from the 2 parameter Weibull fits were noted and observed to all be above 10, a value considered to be acceptable [7,8]. Previous comparison of varying PEO molecular weights has shown that the higher molecular weights exhibit a slight decrease in breakdown strength [7].…”

Section: Resultsmentioning

confidence: 99%

Comparison of rheological, thermal and electrical properties of poly(ethylene oxide) composites with micro and nano sized silicon dioxide filler

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Vaughan

2010

2010 10th IEEE International Conference on Solid Dielectrics

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Polyethylene oxide (PEO) is a water-soluble polymer often used as a model system to observe filler effects. This paper details an investigation into the physical, thermal and electrical properties of polyethylene oxide composites containing micro-(SD) and nano-silicon dioxide (nSD) filler. Three molecular weight host PEOs were used -100,000 g mol-1, 400,000 g mol-1 and 1,000,000 g mol-1 and the SD was dispersed into the PEO in solution in distilled water, by using controlled shear conditions, and the properties of the resulting materials then studied. Dispersion of the micro-and nano-sized fillers was analysed during the solution rheology phase by means of shear rate -shear stress data collection. The crystallisation and melting behaviour were examined using differenial scanning calorimetry. The AC ramp electrical breakdown strength was also analysed. This paper investigates the effect of SD filler loading and shear history on structural evolution, electrical breakdown behaviour in PEO, and the dependence on filler size.

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Section: Resultsmentioning

confidence: 99%