POLYMERIC INSULATOR PERFORMANCE TEST UNDER MAGNETIC FIELD EFFECT

Abstract

Çevresel ve elektriksel zorlayıcı etkiler enerji iletim dağıtım hattında yaygın olarak kullanılan silikon izolatörlerin yaşlanmasına sebep olurlar ve dielektrik performanslarını azaltırlar. Mekanik olarak taşıma kolaylığı, esnekliği ve hafifliği ile öne çıkan silikon izolatörler aynı zamanda yüksek elektrik direncine de sahiptir. Bu yalıtkanların yapısındaki herhangi bir bozulma, elektrik kesintilerine neden olarak ciddi finansal kayıplara yol açabilir. Enerji iletim-dağıtım hattı boyunca izolatörlerde, tellerden geçen akımın ürettiği manyetik alanın etkisi vardır. Bu alan, yalıtkan üzerindeki çalışma performansını değiştirecek bir etkiye neden olabilir. Bu çalışmada, silikon izolatörlerin çalışma performansını etkileyen AC manyetik alan, eğik düzlem testinde IEC 60587 ve ASTM 2303 standartlarına göre incelenmiştir. Ek olarak, üretilen bir elektrik alan ve kapasitif etki test edilmiştir. Numunelerin test süreleri, yalıtkan yüzeyinde üst elektrottan toprak elektroduna akan kaçak akım ve yüzey koşulları incelenmiş ve sonuçlar karşılaştırılmıştır.

Keywords

• Mineral yağ,pressboard,kısmi deşarj,dielektrik,yüzey bozulması

POLYMERIC INSULATOR PERFORMANCE TEST UNDER MAGNETIC FIELD EFFECT

Abstract

The environmental and electrical stresses age silicone insulators commonly used in energy transmission-distribution line and reduce their performance. Silicon insulators, which stand out mechanically with their ease of transportation, flexibility and light weight, have high electrical resistance as well. Any deterioration in the structure of these insulators can lead to power outages, causing serious financial loss. On the insulators along the energy transmission-distribution line there is the effect of the magnetic field generated by the current passing through the wires. This field can cause such an effect that will change the working performance on the insulator. In this study, AC magnetic field effecting the working performance of silicon insulators was examined in inclined plane test according to IEC 60587 and ASTM 2303 standards. In addition, an electric field generated and the capacitive effect were tested. Test times of samples, leakage current which flows on the surface of insulator from top electrode to the earth electrode, and surface conditions were examined and results were compared.

Keywords

• Mineral oil,pressboard,partial discharge,dielectric,surface degradation

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