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直流局部放电
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  dc partial discharge
     Features Extraction Method of DC Partial Discharge Based on Mobile Time Window
     基于移动时间窗的直流局部放电特征提取方法
短句来源
     DC Partial Discharge Measurement of Electrical Equipments
     电气设备的直流局部放电测量
短句来源
     The experimental results show that the proposed method can remove the redundant feature parameters of DC partial discharge and acquire the diagnosing rules for insulation performance.
     实验结果表明,所提方法能剔除冗余的直流局部放电特征量,获取绝缘性能诊断规则,所得知识能很好地诊断电气设备绝缘性能。
短句来源
     To measuring the insulation capability of capacitor, DC partial discharge was carried out based on its working condition.
     为了检测介质绝缘性能,保证高压储能电容器的正常工作,根据其工作条件,采用直流局部放电测试技术对电容器进行测试与分析。
     In this paper, using the technique of mobile time window (MTW) , a new feature extraction method for DC partial discharge is proposed.
     文中采用移动时间窗技术,提出一种新的直流局部放电特征提取方法。
短句来源
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  pd under dc
     Based on PD mechanism, PD testing theory and characteristic of PD under DC, manual work detect system and automatic test system are designed on existing condition.
     根据局部放电的机理、局部放电检测的理论及直流局部放电的特点,在现有的条件下设计了人工化和计算机化直流局部放电检测系统;
短句来源
     Thus, that to indicate insulation situation in capacitors according to analyses of PD under DC condition (DCPD) has practical meaning to improve reliability of impulse power system, and contributes to factory testing methods.
     因此,分析电容器直流局部放电及其发展趋势,揭露电容器绝缘内部的缺陷类型,对丰富电容器的出厂检测手段和提高脉冲功率系统可靠性有重要的实际应用价值。
短句来源
  “直流局部放电”译为未确定词的双语例句
     PD Detection for HVDC Capacitor Based on Matlab
     基于MATLAB的高压电容器直流局部放电检测
短句来源
     Based on the RLC balance resistance detection and Δt(time interval between two consecutive discharges) analysis techniques,a DCPD(direct current partial discharge) detection instrument for high-voltage storage capacitors was developed to estimate the performance of a high-voltage storage capacitor.
     为了评估高压储能电容器的性能,基于RLC平衡检测阻抗法和Δt(相邻放电脉冲时间间隔)分析法,研制了高压储能电容器直流局部放电检测仪.
短句来源
     Partial Discharge Measurement under DC Voltage for DC Filter Capacitors
     直流滤波器电容器的直流局部放电测量
短句来源
     Partial Discharge Measurement Under DC Voltage for DC—Filter Capacitors
     直流滤波器电容器的直流局部放电测量
短句来源
     Capacitor partial discharge footprint's exploratory analysis under HVDC
     高压电容器直流局部放电指纹的探索性分析
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The measuring method of the DC partial discharge for high voltage equipments is discussed and studied in the paper. Several measuring systems of the DC partial discharge are developed. At the end of this peper, the test results of the DC partial discharge measurement for some of the HV equipments installed in GZB (Gezhouba) converter station are presented.

本文探讨了电气设备的直流局部放电测量方法,提出了几种测量系统。文中还给出了葛洲坝换流站部分设备的直流局部放电测量结果。

Ln order to help the analysis of the damage causes for the filter capacitors installed in GZB converter station, the tests of partial discharge under DC voltage for the capacitors were performed under normal and high temperature conditions using two—arm connection and microwindow circuit to suppress the interference. The results show that the DC partial discharges of the capacitors under normal temperature don't have any apparent development under high temperature. The paper also discusses some problems about...

Ln order to help the analysis of the damage causes for the filter capacitors installed in GZB converter station, the tests of partial discharge under DC voltage for the capacitors were performed under normal and high temperature conditions using two—arm connection and microwindow circuit to suppress the interference. The results show that the DC partial discharges of the capacitors under normal temperature don't have any apparent development under high temperature. The paper also discusses some problems about the DC partial discharge measurement for capacitors.

为了配合葛州坝换流站直流滤波器电容器的损坏事故分析,进行了电容器常温和高温状态,直流电压作用下的局部放电试验。在常温和高温状态下,分别用双臂式抗干扰回路,和微窗口电路,有效地抑制了外部干扰。测量结果表明,电容器在高温状态下的直流局部放电量较常温下没有显著增加。文中还对电容器直流局部放电测量时所应注意的问题进行了讨论。

The rules of partial discharge in oil-immersed insulation under DC voltage are mainly studied.The test results show that the repetition rate of partial discharge increases along with temperature and voltage.At room temperature,the repetition rate is the largest when votlage decreases to approach zero and gradually decreases to zero with time lasted.But at higher temperature,PD extinction voltage is seen clearly.

主要研究了油纸绝缘的直流局部放电规律。实验结果表明,放电重复率随温度、电压的增加而增加。常温下在电压降到接近零时,放电次数较多,随着时间的延长,放电逐渐减少到无放电;但在高温下,能看到明显的熄灭电压。

 
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