This method can be used to specify the cross-phase fault and single line fault of the parallel line as well as cross-pole fault.
该方法的特点是考虑了同杆双回线的跨线故障,能够确定同杆双回线中的单回线的故障回路以及跨线故障,并且物理意义明确。
It fuses single fault degree by D-S evidence theory and calculates continuous fault degree. The line of maximum degree is the fault line.
应用d - S证据理论对单次故障度进行有效融合,计算出连续故障度,连续故障度最大的线路就是故障线路。
Single phase earthed fault is the common fault in this system. To select the fault line accurately is of great importance to improve the operation reliability.
在小电流接地系统中,发生单相接地故障的概率很高,因而,准确的选出故障线路,对于提高运行可靠性,具有重要的意义。
And the single phase grounding fault location for transmission line should be the emphases in power system fault detection.
因此输电线路的单相接地故障点定位应是电力系统故障检测的一个重点。
Single phase broken line and two-phase broken line are two faults easy too see in power system, which account more in all broken line fault.
单相断线和两相断线是三相电网中最常见的两种故障,占纵向不对称故障的绝大多数。
This paper analyses the effects of the single-phase break fault of the supply line on the generators at the small-sized hydropower station.
从理论上分析了小型电站供电线路单相断线故障对发电机的影响,讨论了单相断线时发电机电流的计算方法并附有算倒。
On account of the weak fault current and unstable fault arc, the problems of the single phase to ground fault line selection in the non-solid earthed network have never been thoroughly resolved.
由于故障电流小、电弧不稳定等原因,小电流接地系统单相故障选线问题始终没有得到彻底解决。
The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
注入信号法是一种效果较好的选线方法,其原理广泛应用于小电流接地系统单相接地故障的自动选线。
Digital transformer differential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下,差动保护有时会误动。
Traveling wave dispersion in the parallel line is more complex than that in the single line and is an important reason why the fault location error is large for traveling wave method.
行波色散是造成故障测距误差大的重要原因:利用行波故障定位时要考虑采用多相行波数据。
By analyzing the zero-sequence full current for single-phase grounding fault in isolated neutral distribution network, a new approach to determine the faulty transmission line is obtained.
通过对中性点不接地配电网单相接地故障时零序全电流的分析,得出了利用零序全电流的大小和方向进行故障选线的新方法。
The healthy line is unloaded for zero-sequence component when a single-phase fault occurs in a non-solid earthed network.
小电流接地系统发生单相接地故障时,对零序分量而言,非故障线路相当于空载。
The lab experiments showed that under the single phase fault status, the system could be accurate and reliable to detect the fault line and to drive the trip.
经实验室试验证明该系统在单相故障状态下能准确可靠地检测出故障线路并驱动跳闸。
When single-phase-to-earth fault occurs on a neutral non-direct grounded power system, it is nexessary for improving the reliability of power supplying to select the faulted line quickly.
中性点非有效接地配电网发生单相接地故障时,尽快选出故障线路对提高电网的供电可靠性有重要意义。
When single-phase-to-earth fault occurs on a neutral non-direct grounded power system, it is nexessary for improving the reliability of power supplying to select the faulted line quickly.
中性点非有效接地配电网发生单相接地故障时,尽快选出故障线路对提高电网的供电可靠性有重要意义。
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