The sensing method of the partial discharge pulse current in current transformer is re-searched experimentally.
对电流互感器的局放脉冲电流传感方法进行了实验研究。
In this paper, an improved spatial mask filter algorithm is proposed and applied in partial discharge pulse extraction.
提出了改进的空间屏蔽滤波算法,并将其应用于局部放电脉冲信号的提取。
A digital detection and analysis system was developed to record the partial discharge pulse and to recognize different patterns.
为检测局部放电快速变化的脉冲电流波形及根据波形进行放电模式识别工作,研制了一套数字测量与分析系统。
Since a partial discharge pulse waveform is irregular and the spectrum of each pulse is different, a pulse wave form will be distorted at the measuring terminal of the circuit.
由于局部放电脉冲波形是不规则的,显然,它们的频谱是不同的,这将导致在测量点上脉冲波形的畸变。
The extraction and counting method for partial discharge (PD) under pulse voltage was proposed.
提出了脉冲电压下局部放电(PD)信号的提取和统计方法。
A wavelet domain singularity detection algorithm, based on the theory of pulse extraction, is applied in partial discharge (PD) pulse extraction utilizing the singularity of PD signal.
在提出脉冲提取思想的基础上,利用局部放电信号所固有的奇异性特征,将小波变换的奇异性检测原理应用于提取局部放电脉冲。
The propagation characteristics of a simulation partial discharge (PD) pulse and a steep front pulse in the XLPE power cable are investigated.
对模拟局部放电的窄脉冲和陡前沿脉冲沿电缆的传播特性进行了实验研究。
The results indicate that the UHF system of detecting PD can effectively detect partial discharge and avoid outer corona interfere and Periodic pulse interfere.
实验结果表明该检测系统可有效地避开空间的电晕及周期性脉冲干扰信号等低频段干扰。
And then a method of partial discharge monitoring based on pulse current and a technique of fault diagnosis based on the minimum distance method to stator winding are presented.
接下来提出采用脉冲电流法完成定子放电故障信号的采集,应用基于最小距离法对定子局部放电样本进行故障识别。
A compact circuit with enough wide frequency response is designed and the high speed digital oscilloscope TDS754C is used to measure pulse current of Partial Discharge (PD).
设计了具有较宽频率响应范围的紧凑型测试电路,结合高速数字示波器TDS75 4c对油中的局部放电脉冲波形进行了测量。
The partial discharge signals were gathered by a united detective system of UWB method, pulse current method and UHF method.
局部放电信号用超宽带(UWB)脉冲电流、脉冲电流和特高频(UHF)联合检测系统获取。
According to UHF output signals, original PD pulse can be estimated, which contributes to marking GIS partial discharge.
从而阐明了特高频输出信号能量与原始放电脉冲的关系,为进一步探讨GIS放电量特高频标定打下基础。
According to UHF output signals, original PD pulse can be estimated, which contributes to marking GIS partial discharge.
从而阐明了特高频输出信号能量与原始放电脉冲的关系,为进一步探讨GIS放电量特高频标定打下基础。
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