高压输电线路发生故障后的暂态电压或电流分量中包含比工频分量更多的故障信息，充分利用这一信息是构成具有绝对选择性单端无通信保护的前提。
Moreover, it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage.
该方法利用小波变换分析所采集的故障暂态信号，提取用于选线的暂态信息，并采用综合相位比较法确定故障线路。
In this method the transient fault signals are analyzed with wavelets transform to obtain the transient fault information, and the fault circuit is selected by the synthetic phase comparison method.
利用故障录波信息重演负荷特性的暂态过程，通过实测曲线和负荷模型仿真曲线的比较，进行负荷动特性模型的校验。
Utilizing the recorded fault data to replay the transient process, the dynamic load model could be verified by the comparison between measured curves and simulation ones.
当电力电缆发生故障后，会由故障点向所电缆的两端发射暂态行波，这个暂态行波包含着丰富的故障信息。
When the faults happened, the transient traveling wave contained abundant information is emitted to the ends of cables by the faults.
故障暂态过程含有丰富的故障信息且暂态信号幅值大于稳态信号的幅值，容易被测量。
There are rich information in transient and it rate more than steady, Easy to detect.
当电力系统发生故障时，采用该方法可以综合来自电网和发电机的多个信息源对电力系统的暂态稳定进行判别。
When accidents occur, much information obtained from power networks and generators is synthesized to diagnose power system transient stability by the method.
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。
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。
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.
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