本文選題：氣體絕緣金屬封閉式開關(guān)設(shè)備 + 局部放電�。� 參考：《電力自動化設(shè)備》2017年07期

【摘要】：為提高氣體絕緣金屬封閉式開關(guān)設(shè)備(GIS)局部放電特高頻(UHF)檢測技術(shù)現(xiàn)場應(yīng)用的有效性,有必要對UHF傳感器耦合性能進(jìn)行校核。為此,建立了基于吉赫茲橫電磁波(GTEM)小室的UHF傳感器有效高度測試平臺,采用0.3~1.5 GHz頻段內(nèi)的平均有效高度和該頻段內(nèi)有效高度大于等于2 mm的百分比表征UHF傳感器的耦合性能�；贕TEM750小室,采用時域脈沖和掃頻參考法對UHF傳感器的有效高度進(jìn)行了比對測試,并與GTEM1500小室的測試結(jié)果進(jìn)行了比較;基于GTEM750小室的時域脈沖參考法,討論了UHF傳感器類型、工裝、安裝角度對有效高度測試結(jié)果的影響。研究結(jié)果表明,不同方法和平臺對UHF傳感器在0.3~1.5 GHz頻段內(nèi)的平均有效高度測試結(jié)果的偏差在±1 mm以內(nèi);UHF傳感器類型、工裝、安裝角度對有效高度有顯著的影響。
[Abstract]:In order to improve the effectiveness of field application of gas insulated metal closed switchgear (GIS) partial discharge UHF (UHF) detection technology, it is necessary to check the coupling performance of UHF sensors. Therefore, a UHF sensor effective height measurement platform based on GTEM cell is established. The coupling performance of UHF sensor is characterized by the average effective height in the frequency band of 0.3 ~ 1.5 GHz and the percentage of the effective height in the band greater than or equal to 2 mm. Based on GTEM750 cell, the effective height of UHF sensor is compared with that of GTEM1500 cell by time-domain pulse and sweep reference method, and the type of UHF sensor is discussed based on the time-domain pulse reference method of GTEM750 cell. The effect of installation angle on effective height test results. The results show that different methods and platforms have a significant effect on the effective height of UHF sensors with the deviation of the average effective height of the UHF sensor within 鹵1 mm in the frequency band of 1.5GHz. The type of the UHF sensor, the installation angle and the installation angle have a significant effect on the effective height of the UHF sensor.
【作者單位】： 國網(wǎng)福建省電力有限公司電力科學(xué)研究院;
【分類號】：TM855

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