The self-extinguishing of the arc caused by a single-phase grounding fault depends mainly on the amplitude of the residual current at grounding point.
可自恢复性单相接地故障点的电弧是否能自然熄灭的决定因素是接地故障残流的大小。
The harm of single-phase grounding fault current in the medium-voltage power network has been gotten the universal solicitude of people.
中压电网中,单相接地故障电流的危害性受到了人们的普遍关注。
A new method based on calculating approximate entropy of transient zero-module current is presented in order to locate the single phase grounding fault in non-solidly earthed network.
提出一种通过计算暂态零模电流近似熵确定小电流接地故障区段的新方法。
This paper introduces principle and application of a new method circuit selection for small current system when single phase grounding failure happens, namely remote sensing circuit selection device.
本文介绍了一种小电流系统单相故障接地选线的新方法即遥感式选线装置的原理及应用。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型,用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Based on clustering FSVM and current injection method, a new method using two steps for single-phase grounding fault location of distribution feeders in networks with ungrounded neutral is proposed.
提出小电流接地系统实现单相接地故障定位的新方法。该方法应用基于聚类的FSVM和电流注入法分两步实现故障定位。
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。
If single phase grounding fault is occurred, fault current is very small, so it can continue to run for 1~2 hours according to the protocol.
系统发生单相接地故障以后,因为故障电流很小,不至于影响系统的对称运行,所以按照规程可以继续运行1~2个小时。
The grounding line selector SL-11 has passed field tests of single-phase-grounding line selection in non-solidly grounding system, which is based on current transient traveling wave.
将基于暂态行波的接地选线技术应用于现场,实现了基于电流行波的配电系统故障选线装置SL-11,并在现场对装置进行了多次试验。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状,提出基于非故障相暂态电流的单相接地故障定位的思想。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状,提出基于非故障相暂态电流的单相接地故障定位的思想。
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