江蘇春晨電纜有限公司生產(chǎn)JFEM電機引接線，單相接地故障是配電線路中發(fā)生頻率*，查找難度*的電力故障。因為不足以引起跳閘，假設(shè)用戶側(cè)出了問題，跌落式熔斷器還不跌落，沒有明顯的判別標(biāo)志。但是接地故障在夜間帶電比較容易查找，因為其打火在巡視中容易發(fā)現(xiàn)，白天比較難。

Single phase to ground fault is the most frequently occurring power failure in distribution lines. Because it is not enough to cause tripping, assuming that the user side has a problem, the drop fuse does not fall, and there is no obvious identification mark. However, grounding fault is easier to find at night, because it is easy to find fire in patrol, and it is more difficult in the daytime.

對這種故障的檢查主要依靠對電路系統(tǒng)中的暫態(tài)信號進(jìn)行分析。電路系統(tǒng)的暫態(tài)信號儲存著關(guān)于線路故障的大量信息。暫態(tài)過程的另外一大特點就是能夠避開對接地方式的影響，反應(yīng)故障問題，因此加強對暫態(tài)過程的分析有利于對故障進(jìn)行判斷。JFEM電機引接線

The inspection of this kind of fault mainly depends on the transient signals in the circuit system. Transient signals in the circuit system store a lot of information about line faults. Another characteristic of transient process is that it can avoid the influence of the way of docking and the problem of failure. Therefore, the analysis of the transient process is beneficial to the judgment of the fault.

在配電線路中出現(xiàn)單相接地故障時，通過對電流與電容的暫態(tài)信號進(jìn)行分析，能提高配電線路故障診斷的效率。

When the single-phase grounding fault occurs in distribution lines, the efficiency of distribution line fault diagnosis can be improved by analyzing the transient signals of current and capacitance.

一般措施為避雷器應(yīng)及時做試驗；穿墻套管心子用絕緣線代替；跌落式熔斷器及時巡視檢修，隔離刀閘觀察瓷絕緣和硅橡膠絕緣護(hù)套有無損傷。

The general measures should be done in time for the lightning arrester; the wall casing heart is replaced by the insulation line; the fall type fuse is in time to inspect and repair, and the insulation and the silicone rubber insulating sheath are observed without damage.

故障出現(xiàn)特點：此類故障出現(xiàn)時天氣一般是陰雨、大霧，大氣水分含量高，造成絕緣降低無法維持正常運行

Fault features: when such faults occur, the weather is generally cloudy and rainy, heavy fog, and high moisture content of the atmosphere, resulting in insulation reduction and can not maintain normal operation.