Optical spectra of surface discharges in oil

Boczar, T.; Zmarzły, D.

doi:10.1109/tdei.2006.1657978

Cited by 30 publications

(21 citation statements)

References 12 publications

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“…Based on literature reports [1][2][3][4][5][6][7][8][9][10][11] it can be concluded that at an adequate regime of metrology, the optical spectrophotometry method not only enables for accurate detection of radiation generated by electrical discharges, but also for widely understood analysis.…”

Section: Introductionmentioning

confidence: 99%

“…However, measurements results reported in the literature confirm the high sensitivity of this method, revealing by changes of model parameters and tests conditions. Thus it becomes possible to study a number of phenomena inaccessible by application of conventional diagnostics for insulation systems of electric power devices such as the electric, gas chromatography and the acoustic emission methods [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…These properties are conditioned by the internal structure of a solid dielectric, and, first of all, by the presence of a dirt layer on its surface. Dielectrics such as glass or porcelain, contrary to dielectrics of the organic origin, do not participate actively in PDs formation and development [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Influence Estimation of the Voltage Value on the Measurement Results for the Optical Radiation Generated by Partial Discharges on Bushing Isolator

Frącz

2011

Acta Phys. Pol. A

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The subject area of the paper concerns determination of possibility and application scope suggestion for the optical spectrophotometry method in the linear isolators diagnosis. Measurements results of the optical radiation emitted by partial discharges generated on a model of bushing isolator, which was placed in the air, are presented in the paper. Recording was done by use of a spectrophotometer that enabled for measurement of optical radiation in the range from 250 to 1700 nm. The main aim of laboratory research works performed was to estimate the influence of the supply voltage value changes in range from 0 to 60 kV on the intensity and character of the optical radiation spectrum emitted by surface partial discharges occurring on the ceramic insulating surface of the bushing isolator. In the scope of research works, analysis of voltage value changes influence on the gathered spectra was performed while its accretion and decrease was investigated. Furthermore, the measurements and analysis performed enclose the influence estimation of the time, when the voltage was attached to the high voltage electrode, on the proceeding of the optical phenomena connected with generation of surface partial discharges. In addition a comparative analysis of measurements results gathered for two designed and implemented models of bushing insulators, which differ in geometric dimensions, was performed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence Estimation of the Voltage Value on the Measurement Results for the Optical Radiation Generated by Partial Discharges on Bushing Isolator

Frącz

2011

Acta Phys. Pol. A

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“…power transformers, change in time. Many factors (temperature, humidity, external electrical field) influences the deterioration of the oil [18][19][20]. Transformer aging is mainly related to the degradation of the insulation, caused mainly by the thermal stress of the insulating paper, together with the electrochemical decomposition of the oil.…”

Section: Acoustic Cavitation In Insulating Oilsmentioning

confidence: 99%

Frequency and Time-Frequency Analysis of Acoustic Cavitation Noise in Insulating Oils

2011

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“…Transformer aging is mainly related to the degradation of the insulation, caused mainly by the thermal stress of the insulating paper, together with the electrochemical decomposition of the oil. The physicochemical processes can be very complex [16,17].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Spectra of Ultrasound Induced Cavitations in Insulating Oils

et al. 2008

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Acoustic emission measurement results of acoustically induced cavitation bubbles in insulating oil are presented in this paper. Spectral analysis of acquired by a broadband transducer acoustic emission signals is proposed as a diagnostic tool for estimation of aging properties of mineral insulating oils. The article describes the main parts of the designed and built measurement apparatus used for acoustic cavitation investigation in insulating oils. In this note representative results of the experimental data taken from the apparatus are shown.

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Optical spectra of surface discharges in oil

Cited by 30 publications

References 12 publications

Influence Estimation of the Voltage Value on the Measurement Results for the Optical Radiation Generated by Partial Discharges on Bushing Isolator

Influence Estimation of the Voltage Value on the Measurement Results for the Optical Radiation Generated by Partial Discharges on Bushing Isolator

Frequency and Time-Frequency Analysis of Acoustic Cavitation Noise in Insulating Oils

Acoustic Spectra of Ultrasound Induced Cavitations in Insulating Oils

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