江苏春晨电缆有限公司生产JFEM电机引接线，单相接地故障是配电线路中发生频率*，查找难度*的电力故障。因为不足以引起跳闸，假设用户侧出了问题，跌落式熔断器还不跌落，没有明显的判别标志。但是接地故障在夜间带电比较容易查找，因为其打火在巡视中容易发现，白天比较难。

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.

对这种故障的检查主要依靠对电路系统中的暂态信号进行分析。电路系统的暂态信号储存着关于线路故障的大量信息。暂态过程的另外一大特点就是能够避开对接地方式的影响，反应故障问题，因此加强对暂态过程的分析有利于对故障进行判断。JFEM电机引接线

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.

在配电线路中出现单相接地故障时，通过对电流与电容的暂态信号进行分析，能提高配电线路故障诊断的效率。

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.

一般措施为避雷器应及时做试验；穿墙套管心子用绝缘线代替；跌落式熔断器及时巡视检修，隔离刀闸观察瓷绝缘和硅橡胶绝缘护套有无损伤。

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.

故障出现特点：此类故障出现时天气一般是阴雨、大雾，大气水分含量高，造成绝缘降低无法维持正常运行

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.