Measurement and Analysis of Partial Discharge using an Ultra-High Frequency Sensor for Gas Insulated Structures

• Autorzy: Wang G. , Kil G.-S.

Identyfikatory

DOI

10.1515/mms-2017-0045

• Języki publikacji: EN

Abstrakty

EN

Although the gas insulated structures have a high degree of reliability, the unavoidable defects are primary reason of their failures. Partial discharge (PD) has been regarded as an effective indication for condition monitoring and diagnosis of gas insulated switchgears (GISs) to ensure their reliable and stable operation. Among various PD detection methods, the ultra-high frequency (UHF) technique has the advantages of on-line motoring and defect classification. In this paper, there are presented 7 types of artificial electrode systems fabricated for simulation of real insulation defects in gas insulated structures. A real-time measurement system was developed to acquire defect patterns in a form of phase-resolve partial discharge (PRPD) intensity graph, using a UHF sensor. Further, the discharge distribution and statistical characteristics were extracted for defect identification using a neural network algorithm. In addition, a conversion experiment was proposed by detecting the PD pulse simultaneously using a non-induction resistor and a UHF sensor. A relationship between the magnitude of UHF signal and the amplitude of apparent charge was established, which was used for evaluation of PD using the UHF sensor.

Słowa kluczowe

EN

gas insulated structures; partial discharge; ultra-high frequency sensor; conversion

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2017
• Tom: Vol. 24, nr 3
• Strony: 515--524
• Opis fizyczny: Bibliogr. 24 poz., rys., wykr.

Twórcy

autor

Wang G.

• Korea Maritime and Ocean University, Department of Electrical and Electronics Engineering, 727, Taejong-ro, Yeongdo-gu, Busan, Korea

autor

Kil G.-S.

• Korea Maritime and Ocean University, Department of Electrical and Electronics Engineering, 727, Taejong-ro, Yeongdo-gu, Busan, Korea

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).