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公开(公告)号：US07256584B2
公开(公告)日：2007-08-14
申请号：US11294409
申请日：2005-12-06
IPC分类号： G01R31/12
CPC分类号： G01R31/1272 , G01R31/1254
摘要： In the measurement of partial discharge, a voltage detected by an antenna is input to a spectrum analyzer and a phase difference between an operating voltage and a power supply of the spectrum analyzer is obtained by phase domain analysis using the spectrum analyzer. Based on the phase difference and the voltage phase shift associated with the input impedance of a signal converter circuit, the time axis displayed on the screen of the spectrum analyzer is compensated. After the compensation has been carried out, the voltage detected by the antenna is input into the spectrum analyzer and the partial discharge pattern which synchronizes with the operating voltage is measured by phase domain analysis using the spectrum analyzer.
摘要翻译： 在局部放电的测量中，将由天线检测的电压输入到频谱分析仪，并且通过使用频谱分析仪的相域分析获得频谱分析仪的工作电压和电源之间的相位差。 基于与信号转换器电路的输入阻抗相关联的相位差和电压相移，补偿频谱分析仪屏幕上显示的时间轴。 在进行补偿之后，将由天线检测的电压输入到频谱分析仪中，并且通过使用频谱分析仪的相域分析来测量与工作电压同步的局部放电模式。
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2.发明授权Method and system for monitoring partial discharge in gas-insulated apparatus 有权在气体绝缘设备中监测局部放电的方法和系统公开(公告)号：US07388384B2
公开(公告)日：2008-06-17
申请号：US11304673
申请日：2005-12-16
申请人： Tatsuro Kato , Tomohiro Moriyama , Fumihiro Endo
发明人： Tatsuro Kato , Tomohiro Moriyama , Fumihiro Endo
IPC分类号： G01R31/08
CPC分类号： G01R31/1254 , G01R31/085
摘要： A gas-insulated apparatus is equipped with multiple sensors for sensing a partial discharge signal caused by a foreign substance, and a frequency analyzing section for analyzing the frequency of the sensed partial discharge signal. A defect type judging section estimates the defect type of the foreign substance from the signal obtained through the frequency analysis or from the voltage phase distribution of partial discharge synchronized with the frequency of the voltage applied to the gas-insulated apparatus, and a location determining section estimates the defect location and signal intensity from the multiple partial discharge signals. A defect size calculating section estimates the defect size for each defect type from the signal intensity and field distribution at the defect location. Dielectric breakdown risk evaluation is performed based on the defect size and type, and the insulation failure risk is diagnosed from the partial discharge.
摘要翻译： 气体绝缘装置配备有用于感测由异物引起的局部放电信号的多个传感器，以及用于分析感测到的局部放电信号的频率的频率分析部。 缺陷型判断部根据通过频率分析得到的信号或者与施加到气体绝缘装置的电压的频率同步的局部放电的电压相位分布来估计异物的缺陷类型，以及位置确定部 估计来自多个局部放电信号的缺陷位置和信号强度。 缺陷尺寸计算部根据缺陷位置处的信号强度和场分布来估计每种缺陷类型的缺陷尺寸。 基于缺陷尺寸和类型进行介电击穿风险评估，并从局部放电诊断绝缘破坏风险。
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公开(公告)号：US20050184737A1
公开(公告)日：2005-08-25
申请号：US11048777
申请日：2005-02-03
CPC分类号： G01R31/1272 , G01R31/1254
摘要： Prior to the measurement of partial discharge, a voltage detected by the antenna is inputted into a spectrum analyzer, a phase difference between an operating voltage and a power supply of the spectrum analyzer is obtained by phase domain analysis using the spectrum analyzer. Based on the phase difference and the voltage phase shift associated with input impedance of the signal converter circuit, the time axis displayed on the screen of the spectrum analyzer is compensated. After the compensation has been carried out, the voltage detected by the antenna is inputted into the spectrum analyzer, the partial discharge pattern which synchronizes with the operating voltage is measured by phase domain analysis using the spectrum analyzer.
摘要翻译： 在测量局部放电之前，将天线检测到的电压输入到频谱分析仪中，通过使用频谱分析仪的相域分析获得频谱分析仪的工作电压和电源之间的相位差。 基于与信号转换器电路的输入阻抗相关的相位差和电压相移，补偿频谱分析仪屏幕上显示的时间轴。 在进行补偿之后，将由天线检测的电压输入到频谱分析仪中，通过使用频谱分析仪的相位域分析来测量与工作电压同步的局部放电模式。
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4.发明申请Method and system for monitoring partial discharge in gas-insulated apparatus 有权在气体绝缘设备中监测局部放电的方法和系统公开(公告)号：US20060132144A1
公开(公告)日：2006-06-22
申请号：US11304673
申请日：2005-12-16
申请人： Tatsuro Kato , Tomohiro Moriyama , Fumihiro Endo
发明人： Tatsuro Kato , Tomohiro Moriyama , Fumihiro Endo
CPC分类号： G01R31/1254 , G01R31/085
摘要： A gas-insulated apparatus is equipped inside with multiple sensors for sensing a partial discharge signal caused by a foreign substance, and a frequency analyzing section for analyzing the frequency of the sensed partial discharge signal. A defect type judging section estimates the defect type of the foreign substance from the signal obtained through the frequency analysis or from the voltage phase distribution of partial discharge synchronized with the frequency of the voltage applied to the gas-insulated apparatus, and a location determining section estimates the defect location and signal intensity from the multiple partial discharge signals. A defect size calculating section estimates the defect size for each defect type from the signal intensity and field distribution at the defect location. Dielectric breakdown risk evaluation is performed based on the defect size and type, and the insulation failure risk is diagnosed from the partial discharge.
摘要翻译： 气体绝缘装置内装有用于感测由异物引起的局部放电信号的多个传感器，以及频率分析部分，用于分析感测到的局部放电信号的频率。 缺陷型判断部根据通过频率分析得到的信号或者与施加到气体绝缘装置的电压的频率同步的局部放电的电压相位分布来估计异物的缺陷类型，以及位置确定部 估计来自多个局部放电信号的缺陷位置和信号强度。 缺陷尺寸计算部根据缺陷位置处的信号强度和场分布来估计每种缺陷类型的缺陷尺寸。 基于缺陷尺寸和类型进行介电击穿风险评估，并从局部放电诊断绝缘破坏风险。
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公开(公告)号：US20060071667A1
公开(公告)日：2006-04-06
申请号：US11294409
申请日：2005-12-06
CPC分类号： G01R31/1272 , G01R31/1254
摘要： In the measurement of partial discharge, a voltage detected by an antenna is input to a spectrum analyzer and a phase difference between an operating voltage and a power supply of the spectrum analyzer is obtained by phase domain analysis using the spectrum analyzer. Based on the phase difference and the voltage phase shift associated with the input impedance of a signal converter circuit, the time axis displayed on the screen of the spectrum analyzer is compensated. After the compensation has been carried out, the voltage detected by the antenna is input into the spectrum analyzer and the partial discharge pattern which synchronizes with the operating voltage is measured by phase domain analysis using the spectrum analyzer.
摘要翻译： 在局部放电的测量中，将由天线检测的电压输入到频谱分析仪，并且通过使用频谱分析仪的相域分析获得频谱分析仪的工作电压和电源之间的相位差。 基于与信号转换器电路的输入阻抗相关联的相位差和电压相移，补偿频谱分析仪屏幕上显示的时间轴。 在进行补偿之后，将由天线检测的电压输入到频谱分析仪中，并且通过使用频谱分析仪的相域分析来测量与工作电压同步的局部放电模式。
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公开(公告)号：US20060164100A1
公开(公告)日：2006-07-27
申请号：US11386715
申请日：2006-03-23
IPC分类号： G01R31/12
CPC分类号： G01R31/1272 , G01R31/1254
摘要： In the measurement of partial discharge, a voltage detected by the antenna is input into a spectrum analyzer and a phase difference between an operating voltage and a power supply of the spectrum analyzer is obtained by phase domain analysis using the spectrum analyzer. Based on the phase difference and the voltage phase shift associated with input impedance of the signal converter circuit, the time axis displayed on the screen of the spectrum analyzer is compensated. After the compensation has been carried out, the voltage detected by the antenna is input into the spectrum analyzer, the partial discharge pattern which synchronizes with the operating voltage is measured by phase domain analysis using the spectrum analyzer.
摘要翻译： 在局部放电的测量中，将由天线检测的电压输入到频谱分析仪中，并通过使用频谱分析仪的相域分析获得频谱分析仪的工作电压和电源之间的相位差。 基于与信号转换器电路的输入阻抗相关的相位差和电压相移，补偿频谱分析仪屏幕上显示的时间轴。 在进行补偿之后，将天线检测出的电压输入到频谱分析仪中，通过使用频谱分析仪的相域分析来测量与工作电压同步的局部放电模式。
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公开(公告)号：US06853528B2
公开(公告)日：2005-02-08
申请号：US10347686
申请日：2003-01-22
申请人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
发明人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
IPC分类号： H01H33/02 , H02B13/035 , H02H3/08
CPC分类号： H01H33/027 , H02B13/0356
摘要： The present invention combines sensor portions 22,23 of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and bushings 150, 160 installed at either the power inlet or the power outlet, or both, so as to reduce the size of the gas insulating apparatus. Specifically, the above-mentioned sensor portions 22,23 are installed in the space inside the porcelain tube 15 that constitutes the bushings 150, 160. As this space, it is preferable to use the space on the outer-periphery side of the electric field relaxation member 21 provided inside the porcelain tube 15.
摘要翻译： 本发明组合了用于测量流过从电源入口到电源插座或电压的线路的电流的装置的传感器部分22,23以及安装在电源插座或电源插座上的套管150,160， 或两者，以便减小气体绝缘设备的尺寸。 具体地说，上述传感器部分22,23安装在构成衬套150,160的瓷管15内的空间内。作为该空间，优选使用电场的外周侧的空间 设置在瓷管15内的松弛部件21。
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8.发明授权公开(公告)号：US06483316B2
公开(公告)日：2002-11-19
申请号：US09917814
申请日：2001-07-31
申请人： Tatsuro Kato , Fumihiro Endo
发明人： Tatsuro Kato , Fumihiro Endo
IPC分类号： G01R3108
CPC分类号： G01R31/1254 , H02H1/0015 , H02H1/0092
摘要： The present invention provides a method of diagnosing a partial discharge in a gas-insulated apparatus and a partial discharge diagnosing system for carrying out the same to achieve highly accurate diagnosis through the detection of a partial discharge signal and diagnosing the partial discharge signal through multiple conditional branching. The partial discharge diagnosing system of the present invention consists: a partial discharge signal detector for detecting a partial discharge signal representing a partial discharge produced in the gas-insulated apparatus, a signal analyzer for receiving the partial discharge signal detected by the partial discharge detector and analyzing the partial discharge signal, a diagnostic unit for determining a cause of the partial discharge on the basis of results of analysis made by the signal analyzer, and a display unit for displaying results of diagnosis. The diagnostic unit is provided with a diagnostic means to make multiple conditional branching to a plurality of second diagnostic apparatus according to result of diagnosis made by a first diagnostic apparatus, and obtains a result of diagnosis made by the second diagnostic apparatus, thereby achieving highly accurate diagnosis by detecting the partial discharge signal and subjecting the partial discharge signal to multiple conditional branching.
摘要翻译： 本发明提供了一种用于诊断气体绝缘设备中的局部放电的方法和用于执行其的局部放电诊断系统，以通过检测局部放电信号实现高度准确的诊断，并通过多个条件诊断局部放电信号 分枝。 本发明的局部放电诊断系统包括：局部放电信号检测器，用于检测表示在气体绝缘设备中产生的局部放电的局部放电信号;信号分析器，用于接收由局部放电检测器检测到的局部放电信号;以及 分析局部放电信号，基于由信号分析器进行的分析结果确定局部放电的原因的诊断单元，以及用于显示诊断结果的显示单元。 诊断单元设置有诊断装置，用于根据第一诊断装置的诊断结果对多个第二诊断装置进行多个条件分支，并且获得由第二诊断装置进行的诊断结果，由此实现高精度 通过检测局部放电信号并对局部放电信号进行多个条件分支进行诊断。
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公开(公告)号：US07064267B2
公开(公告)日：2006-06-20
申请号：US11033306
申请日：2005-01-12
申请人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
发明人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
IPC分类号： H02G15/00
CPC分类号： H02B13/065 , G01R15/142 , G01R15/16 , G01R31/1254 , H01H33/027 , H02B13/0356
摘要： The present invention combines sensor portions 22, 23 of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and bushings 150, 160 installed at either the power inlet or the power outlet, or both, so as to reduce the size of the gas insulating apparatus. Specifically, the above-mentioned sensor portions 22, 23 are installed in the space inside the porcelain tube 15 that constitutes the bushings 150, 160. As this space, it is preferable to use the space on the outer-periphery side of the electric field relaxation member 21 provided inside the porcelain tube 15.
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公开(公告)号：US20050135029A1
公开(公告)日：2005-06-23
申请号：US11033316
申请日：2005-01-12
申请人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
发明人： Tatsuro Kato , Tomoaki Utsumi , Fumihiro Endo , Kazuo Kobayashi , Kazuhiro Saito
IPC分类号： H01H33/02 , H02B13/035 , H02H3/00
CPC分类号： H01H33/027 , H02B13/0356
摘要： The present invention combines sensor portions 22, 23 of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and bushings 150, 160 installed at either the power inlet or the power outlet, or both, so as to reduce the size of the gas insulating apparatus. Specifically, the above-mentioned sensor portions 22, 23 are installed in the space inside the porcelain tube 15 that constitutes the bushings 150, 160. As this space, it is preferable to use the space on the outer-periphery side of the electric field relaxation member 21 provided inside the porcelain tube 15.
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