基于國網(wǎng)標(biāo)準(zhǔn)化設(shè)計(jì)要求的空氣絕緣環(huán)網(wǎng)柜開發(fā)

 

黃小軍，王繼龍，唐敏

（正泰電氣股份有限公司，上海 201614）

 

    摘 要：通過對(duì)國家電網(wǎng)公司12 kV空氣絕緣環(huán)網(wǎng)柜標(biāo)準(zhǔn)化設(shè)計(jì)技術(shù)規(guī)范要求解讀分析，并基于其主要技術(shù)指標(biāo)給出12 kV空氣絕緣環(huán)網(wǎng)柜產(chǎn)品的設(shè)計(jì)方案，該設(shè)計(jì)方案重點(diǎn)為雷電沖擊耐受電壓、局放值兩個(gè)關(guān)鍵技術(shù)參數(shù)，并從環(huán)網(wǎng)柜的絕緣水平、整機(jī)局放值兩方面進(jìn)行把控，制定科學(xué)的生產(chǎn)工藝規(guī)范。通過樣機(jī)試驗(yàn)驗(yàn)證，實(shí)現(xiàn)了該產(chǎn)品在電氣絕緣性能和局部放電指標(biāo)方面滿足了技術(shù)和批量生產(chǎn)要求，提升了設(shè)備運(yùn)行的可靠性。

    關(guān)鍵詞：空氣絕緣環(huán)網(wǎng)柜；絕緣水平；局部放電；型式試驗(yàn)

    中圖分類號(hào)：TM591     文獻(xiàn)標(biāo)識(shí)碼：B     文章編號(hào)：1007-3175(2020)12-0066-05

    Abstract: Through the interpretation and analysis of the technical specifications for the standardized design of the 12 kV air-insulated ring main unit of the State Grid Corporation of China, and based on its main technical indicators, the design plan of the 12 kV air-insulated ring main unit products is given. The design plan focuses on two key technical parameters of lightning impulse withstand voltage and partial discharge value, and controls the insulation level of the ring main unit and the partial discharge value of the whole machine to formulate scientific production process specifications. Through prototype test verification, it is realized that the product meets the technical and mass production requirements in terms of electrical insulation performance and partial discharge indicators, and improves the reliability of equipment operation.

    Key words: air-insulated ring main units; insulation level; partial discharge; type test