The principles of using signal injection method to detect single-phaseearthfault of distribution network at present are compared and analyzed.
对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。
2
Low current earth system goes wrong, and type of failure of the maximal odds is Single-phaseearthfault, which occupies 80 percent of all fault time.
单相接地故障是小电流接地系统发生几率最高的故障类型，约占所有故障次数的80%。
3
To avoid happen failure or remove hidden trouble as soon as possible, Single-phaseearthfault of low current earth system is analyzed and discussed in-depth in this text.