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EN
The aim of the research works, results of which are presented in this paper, was to determine the feasibility and to indicate the application scope of optical method in the diagnosis of high-voltage (HV) long rod insulators. Diagnosis of technical condition of HV insulators is critical, because the insulation system undergoes aging processes, which cause deterioration of the insulating properties. The measurements were performed during test under laboratory conditions using an UV camera. Corona partial discharges occurring on the long rod insulator were registered, while the supply voltage value was increased. The presented analyses consider dependencies of the supply voltage value on the count number of UV photons emitted by partial discharges occurring in long rod insulator made of porcelain.
PL
Tematyka artykułu dotyczy określenia możliwości i wskazania zakresu zastosowania w diagnostyce izolatorów liniowych kamery rejestrującej promieniowanie ultrafioletowe. W artykule przedstawiono wyniki pomiarów promieniowania ultrafioletowego emitowanego przez wyładowania niezupełne powierzchniowe (WNZP) generowane na modelu izolatora wsporczego umieszczonego w powietrzu. Rejestracje wykonano przy wykorzystaniu profesjonalnej kamery UVollé firmy OFIL umożliwiającej wykonywanie pomiarów promieniowania ultrafioletowego w zakresie od 250 nm do 280 nm.
EN
The scope of this paper considers possibility determination and application area indication of a camera for ultraviolet radiation recording in diagnosis of linear insulators. Measurements results of ultraviolet radiation emitted by surface partial discharges (SPDs) generated on a post insulator mounted in the air are presented in the paper. Recording was performed by use of a professional UVollé camera by the firm OFIL which enables for ultraviolet radiation measurement in the range from 250 nm to 280 nm.
PL
Tematyka artykułu dotyczy określenia możliwości i wskazania zakresu zastosowania metody spektrofotometrii optycznej w diagnostyce izolatorów liniowych i stacyjnych. W artykule przedstawiono wyniki pomiarów promieniowania optycznego emitowanego przez wyładowania niezupełne generowane na modelu izolatora wsporczego. Podstawowym celem przeprowadzonych badań była ocena wpływu zmian wartości napięcia zasilającego na intensywność i charakter zarejestrowanych widm promieniowania optycznego.
EN
The subject area of the paper concerns the determination of possibility and application scope suggestion for the optical spectrophotometry method in the linear isolators' diagnosis. Measurement results of the optical radiation emitted by surface partial discharges generated in a model of the stand-off 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 of 270 to 1600 nm. The main aim of laboratory research works performed was to estimate the influence of the supply voltage value changes in range of 0 to 0,98 Ub (breakdown voltage) on the intensity and character of the optical radiation spectrum emitted by surface partial discharges occurring in the ceramic insulating surface of the stand-off isolator. In the scope of research works the analysis of voltage value change 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.
PL
Tematyka artykułu dotyczy określenia możliwości i wskazania zakresu zastosowania w diagnostyce izolatorów liniowych i stacyjnych kamery rejestrującej promieniowanie ultrafioletowe. W artykule przedstawiono wyniki pomiarów promieniowania ultrafioletowego emitowanego przez wyładowania niezupełne powierzchniowe generowane na modelu izolatora przepustowego umieszczonego w powietrzu. W ramach przeprowadzonych badań dokonano analizy wpływu szeregu czynników metrologicznych na uzyskiwane wyniki.
EN
The scope of this paper considers possibility determination and application area indication of a camera for ultraviolet radiation recor-ding in diagnosis of linear isolators. Measurement results of ultraviolet radiation emitted by surface partial discharges (SPDs) generated on a bushing isolator mounted in the air are presented in the paper. Recording was performed by use a professional UVollé camera by the firm OFIL which enables for ultraviolet radiation measurement in the range of 50 nm to 280 nm. The main aim of works, performed under laboratory conditions, was to estimate the influence of supply voltage value changes in the range of 0 to 0.98 Up (breakdown voltage) on the counting quantity of partial discharges occurring on the surface of the ceramic bushing isolator. Moreover, the measurements and analyses performed, enclosed the influence estimation of the duration time of voltage applied to high tension electrodes, on the optical phenomena progress connected with SPDs generation. In the scope of works executed also the influence analyses of the distance between electrodes as well parameters of camera applied (sensitivity, amplification and size of the counting window) on the achieved results were investigated. Additionally, a comparative analysis of measurements results achieved for two diameters of the metal electrode (refill) for bushing isolator model was performed.
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