The final result shows that steep - front wave impulse voltage test plays a very effective part in finding serious faults of the insulator , however , tiny faults are not easy to be found through this method 計算和試驗結(jié)果相一致,結(jié)果表明陡波試驗在檢驗合成絕緣子嚴重內(nèi)絕緣故障方面很有效,但對較輕的故障就不太有效。
The lightning impulse breakdown and steep - front impulse breakdown test of silicone rubber are also performed , which give a reference for other so lid materials . the result of this research also will give a reference to revises the standard of steep - front wave impulse voltage test 為了配合本課題的研究還做了硅橡膠材料的雷電沖擊耐受強度和陡波沖擊耐受強度試驗,這兩個試驗對了解其它固體材料的雷電沖擊系數(shù)和伏秒特性也具有參考價值。
In order to verify the effectiveness of steep - front impulse voltage test in finding the internal faults of composite insulator , some insulators with faults , including conductive channel , semi - conductive channels , airy channel , partial little air bubble that occur separately at different place , are modeled . steep - front wave impulse voltage test is made for these faulty insulator and normal insulator 為了檢驗陡波試驗對于發(fā)現(xiàn)合成絕緣子內(nèi)部故障的有效性,分別模擬了絕緣子內(nèi)部不同部位有導電性、半導電性通道,小氣泡,金屬雜質(zhì),長氣泡以及芯棒與護套間不粘連故障的絕緣子,并從三維靜電場計算和用不同陡度的陡波試驗兩個方面進行了驗證。