Time resolved measurements of x-ray induced partial discharges

Adili, Sedat; Herrmann, Lorenz; Franck, Christian M.

doi:10.1109/ceidp.2012.6378737

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…The most important of these are: ultra-high frequency (UHF) [2,3], acoustic wave generation (AE) [4][5][6][7], optical radiation [8][9][10] and high-energy X-rays [11,12]. Based on these phenomena, measurement methods have been applied, which are used in diagnostics of insulation systems in power transformers [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Mathematical model of optical signals emitted by electrical discharges occuring in electroinsulating oil

Kozioł

2017

E3S Web Conf.

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Abstract. The article presents a parametric model describing the registered distributions spectrum of optical radiation emitted by electrical discharges generated in the systems: the needle-needle, the needleplate and in the system for surface discharges. Generation of electrical discharges and registration of the emitted radiation was carried out in three different electrical insulating oils: fabric new, operated (used) and operated with air bubbles. For registration of optical spectra in the range of ultraviolet, visible and near infrared a high resolution spectrophotometer was. The proposed mathematical model was developed in a regression procedure using gauss-sigmoid type function. The dependent variable was the intensity of the recorded optical signals. In order to estimate the optimal parameters of the model an evolutionary algorithm was used. The optimization procedure was performed in Matlab environment. For determination of the matching quality of theoretical parameters of the regression function to the empirical data determination coefficient R 2 was applied.

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