本公司供應(yīng)電線、電纜的太陽能電纜，品質(zhì)保證，歡迎洽談。配電線路常見故障

Common faults in distribution lines

1、 高阻故障

1, high resistance fault

導(dǎo)致高阻故障的原因主要可以分為兩種，一種是在運(yùn)行過程中，配電線路發(fā)生斷裂等情況，與高阻抗發(fā)生接觸;第二種情況是正常運(yùn)作的配電線路發(fā)生斷裂，碰到了線路周圍的物體，這兩類情況都會(huì)導(dǎo)致配電線路高阻故障的發(fā)生。

The cause of high resistance fault can be divided into two kinds, one is in the course of operation, the distribution line is broken and the other is in contact with the high impedance. The second condition is that the normal operation distribution line breaks and meets the objects around the line. These two kinds of situation will cause the occurrence of the high resistance fault of the distribution line. .

配電線路主要是安裝在室外，受環(huán)境因素的影響較大，首先是輸電線路自身的問題，輸電線路使用時(shí)間過長就會(huì)出現(xiàn)不同程度的老化現(xiàn)象，導(dǎo)致線路斷裂，發(fā)生故障;其次是外部環(huán)境問題，其次是外力作用因素，受到人為因素的影響，如故意損壞線路、外力撞擊等導(dǎo)致線路故障。

The distribution line is mainly installed in the outdoor, influenced by the environmental factors, first is the problem of the transmission line itself. The long use time of the transmission line will appear to varying degrees of aging, causing the line breaking and failure; secondly, the external environment problems, the second force factors, and human factors. The influence, such as intentionally damaging the line, external force impact, and so on, leads to line failure.

當(dāng)高阻故障發(fā)生，電流水平明顯低于由于短路而產(chǎn)生的電流水平，這就為配電線路的在線故障識別帶來了一定的影響，在傳統(tǒng)的電流保護(hù)中對這類故障的檢出率較低，因此無法及時(shí)進(jìn)行調(diào)整，從而引起配電系統(tǒng)中更加嚴(yán)重的故障，發(fā)生線路短路，引起火災(zāi)等太陽能電纜

When the high resistance fault occurs, the current level is obviously lower than the current level caused by the short circuit, which has brought a certain influence on the on-line fault identification of the distribution lines. In the traditional current protection, the detection rate of this kind of fault is low, so it can not be adjusted in time, which causes the more serious cause of the distribution system. A barrier, a short circuit of a line, a fire, etc