Acoustic emission detection technology is an effective way to monitor sudden failure caused by partial discharge (PD) in liquid-solid composite insulation of electrical equipment.
声发射探测技术是监测由局部放电引起的液—固复合绝缘电力设备的突发性故障的有效方法。
Partial discharge (PD) detection, as one of the non-destructive testing, has been paid more and more attention.
局部放电检测作为一种非破坏性试验，越来越得到人们的重视。
Partial discharge (PD) pulses recognition is one of the key techniques in the on-line PD monitoring for Hydro-generators.
在水轮发电机局部放电在线监测中，脉冲识别是关键技术之一。
XLPE cable is the primary transportation equipment in electric power system and Partial discharge (PD) is the main cause which destroy electric power's cable insulated layer.
XLPE电缆是电力系统中主要的输送电设备。局部放电是造成电力电缆绝缘层破坏的主要原因。
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 new partial discharge (PD) ultrasonic detection system is developed to investigate the characteristics of PD models.
研制了局部放电超声波检测系统，并对局部放电模型的放电特性进行了研究。
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。
Partial discharge(PD)in GIS could be detected efficiently with its frequency characteristics, because of a lot ultra-high frequency composition in GIS partial discharge signal.
GIS局部放电脉冲含有较为丰富的超高频信号成分，利用GIS局部放电产生的高频辐射特性可以有效地检测GIS局部放电。
On-line partial discharge (PD) monitoring of power transformer is very important to find the fault in transformers and has become a hotspot in research.
变压器局部放电在线监测能及时发现变压器内部缺陷，近年来已经成为研究的热点。
Under DC voltage the restraint and time lag phenomena of partial discharge (PD) in cavities or oil gap by X ray irradiation were investigated.
直流电压下X射线对气隙、油隙放电的激发过程存在明显的“滞后”现象，即：正极性电压下X射线照射首先抑制放电的发生；
Partial discharge (PD) on-line detection can timely reflect the degradation degree of power apparatus, thus becoming a useful technique for condition monitoring and failure diagnosis.
局部放电在线检测可以及时反映电力设备绝缘老化情况，是状态监测和故障诊断的重要手段。
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 statistical operators of partial discharge, namely fingerprint parameters, are important parameters of PD, which can be used to estimate PD condition of insulation.
局部放电的统计参量，即指纹参量是评定绝缘放电状态的重要参量。
This paper brings forward a new method to use statistical features of partial discharge (PD) gray intensity images for PD pattern recognition.
结合图象识别技术，提出一种采用局部放电灰度图象的统计特征区分局部放电类型的方法。
The study of partial discharge (PD) in power apparatus is one of the most important subjects in the field of insulation diagnosis in electrical power system.
电力设备局部放电检测技术是当今电力系统绝缘诊断的一项重要研究课题。
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。
The adaptive Gaussian representation(AGR), which has been used to extract partial discharge (PD) signals from colored noises(CN), is proposed in this paper .
自适应高斯基表示是一种参数化最优联合时频分析工具，它能够有效地去除交叉项干扰，滤除有色噪声。
Partial Discharge (PD) is the main cause of insulation breaking down of HV equipments in power system.
局部放电(PD)是导致高压电工设备绝缘击穿的主要原因。
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。
On-line Partial Discharge (PD) detection is a common method for insulation monitoring in high voltage electrical machines.
局部放电在线检测技术是高压旋转电机定子绕组绝缘监测的有效方法。
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。
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。
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