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11. 发明授权

US09234926B2 Apparatus and method for measuring the dissipation factor of an insulator 有权
标题翻译：用于测量绝缘体的耗散因数的装置和方法
公开(公告)号：US09234926B2
公开(公告)日：2016-01-12
申请号：US13806763
申请日：2011-06-22
申请人： Stefano Rolli , Gianpaolo De Robertis , Stefano Serra , Gian Carlo Montanari
发明人： Stefano Rolli , Gianpaolo De Robertis , Stefano Serra , Gian Carlo Montanari
IPC分类号： G01R27/26 , H02H1/00 , H02H3/20
CPC分类号： G01R27/2694 , H02H1/00 , H02H3/20
摘要： An apparatus for measuring the loss factor of an insulator for medium or high voltages is equipped with a tap adapter forming a point for picking up an electrical signal, and comprises a reference capacitor having a first electrode connected to the tap adapter and a second electrode; a first voltage detection module is connected to the first electrode of the reference capacitor for detecting a signal representative of the voltage applied to the reference capacitor; an active electronic device is connected to earth and to the second electrode of the reference capacitor for keeping the potential of the second electrode at a predetermined reference value; a second voltage detection module is connected to an output of the active electronic device in order to detect a signal representative of the electric current that flows through the reference capacitor.
摘要翻译：用于测量中等或高压的绝缘体的损耗因子的装置配备有形成用于拾取电信号的点的分接头接头，并且包括具有连接到分接头适配器的第一电极和第二电极的参考电容器; 第一电压检测模块连接到参考电容器的第一电极，用于检测表示施加到参考电容器的电压的信号; 有源电子器件连接到地和参考电容器的第二电极，用于将第二电极的电位保持在预定的参考值; 第二电压检测模块连接到有源电子设备的输出，以便检测表示流过参考电容器的电流的信号。

12. 发明授权

US08762081B2 Device and method for locating partial discharges 有权
标题翻译：用于定位局部放电的装置和方法
公开(公告)号：US08762081B2
公开(公告)日：2014-06-24
申请号：US13258335
申请日：2010-03-18
申请人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
发明人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
IPC分类号： G01R31/00 , G01R31/08 , G01R31/28
CPC分类号： G01R31/08 , G01R31/088 , G01R31/1272
摘要： A method for locating partial discharges occurring at a discharge site (2) in an electric apparatus (3) with elongate geometry and generating corresponding electric pulses (4) propagating in opposite directions along the apparatus (3) from the discharge site (2) comprises the steps of detecting (11) the electric pulses (4) picked up by a first and a second sensor (5, 7), operatively connected to the apparatus (3) and spaced out along it, and generating corresponding electric signals representative of the waveform of the pulses (4), selecting (12) at least one pair of signals, detected in the consecutive sensors (5, 7), and representative of a pair of homologous pulses (4), relating to the same partial discharge and propagating in opposite directions along the apparatus, deriving, for the signals of the selected pair of homologous pulses (4), at least one attenuation parameter, correlated with a quantity that is variable depending on the distance travelled by the pulses (4), calculating (13) the distance between the discharge site (2) and the sensors, based on processing the values of the attenuation parameter for the signals of the selected pair of homologous pulses (4).
摘要翻译：一种用于定位在具有细长几何形状的电气设备（3）中的放电部位（2）处发生的局部放电的方法，并且产生沿着装置（3）从放电部位（2）沿相反方向传播的对应电脉冲（4），包括检测（11）由第一和第二传感器（5,7）拾取的电脉冲（4）的步骤，可操作地连接到装置（3）并沿其间隔开，并产生代表脉冲（4）的波形，选择（12）在连续传感器（5,7）中检测到的至少一对信号，并代表一对同源脉冲（4），涉及相同的局部放电和传播沿着装置的相反方向，导出所选择的同步脉冲对（4）的信号，至少一个与根据脉冲（4）行进的距离可变的量相关的衰减参数，计算（13）基于对所选择的同源脉冲（4）的信号的衰减参数的值进行处理，排出部位（2）和传感器之间的距离。

13. 发明申请

US20120209572A1 DEVICE AND METHOD FOR DETECTING AND PROCESSING SIGNALS RELATING TO PARTIAL ELECTRICAL DISCHARGES 有权
标题翻译：用于检测和处理与部分电力放电有关的信号的装置和方法
公开(公告)号：US20120209572A1
公开(公告)日：2012-08-16
申请号：US13503949
申请日：2010-10-29
申请人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
发明人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
IPC分类号： G06F15/00
CPC分类号： G01R31/14 , G01R15/142 , G01R31/12
摘要： A device (1) for detecting and processing signals relating to partial electrical discharges in an electrical apparatus (2) powered by a square-wave (3) voltage modulated by a modulating wave (4) in such a way as to form an alternating voltage of predetermined frequency, comprises: a sensor (5) connectable to the apparatus (2) for detecting a discharge signal (6) representing the electrical pulses generated by the partial discharges; a processing unit (7) connected to the sensor (5) to receive the discharge signal (6) and derive the detection instants of each of the pulses detected with respect to a predetermined time reference, a synchronization module (8) designed to receive an electrical signal (9) representing the power supply voltage and equipped with a filter (10) configured for extracting from said power supply signal (9) a signal (11) representing the modulating wave (4), the processing unit (7) being configured for associating with the pulses detected the values of a phase parameter (f) representing the phase of the modulating wave (4) at the pulse detection instants.
摘要翻译：一种用于检测和处理由由调制波（4）调制的方波（3）电压供电的电气设备（2）中与部分放电有关的信号的装置（1），以便形成交流电压包括：可连接到所述装置（2）的传感器（5），用于检测表示由所述局部放电产生的电脉冲的放电信号（6）; 连接到传感器（5）以接收放电信号（6）并导出相对于预定时间基准检测到的每个脉冲的检测时刻的处理单元（7），设计成接收表示电源电压的电信号（9），并配备有用于从所述电源信号（9）提取表示调制波（4）的信号（11）的滤波器（10），所述处理单元（7）被配置用于与所检测到的脉冲相关联的脉冲检测时刻的表示调制波（4）的相位的相位参数（f）的值。

14. 发明申请

US20100114509A1 METHOD FOR PROCESSING DATA PERTAINING TO AN ACTIVITY OF PARTIAL ELECTRICAL DISCHARGES 有权
标题翻译：处理部分电力放电活动的数据处理方法
公开(公告)号：US20100114509A1
公开(公告)日：2010-05-06
申请号：US12525763
申请日：2008-01-25
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/06
CPC分类号： G01R31/1272 , G01R31/343 , G01R31/346 , H02K11/35
摘要： A method for measuring and processing data pertaining to an activity of partial electrical discharges taking place in a three-phase electric machine (1) powered with square wave voltage, said data comprising a plurality of discharge signals and a plurality of sets of three values (eu, ev, ew) of power supply voltage of the machine measured in concurrence with a corresponding discharge signal, comprises the following steps: -transforming each set (eu, ev, ew) of three voltage values measured into a corresponding pair (ed, eq) of voltage values; -deriving a phase angle value from each of said pairs (ed, eq) of voltage values; -attributing to each discharge signal the corresponding phase value, to assess the measured discharge signals as a function of corresponding phase values. Prior art techniques for processing data pertaining to activity of partial electrical discharges taking place in three phase electric machines powered with square wave voltage provide for assessing the measured discharged signals as a time sequence of events, with no possibility to place them effectively in relation to the power supply voltages, this entailing that any subsequent statistical processing of the measured data will have little significance.
摘要翻译：一种用于测量和处理在由方波电压供电的三相电机（1）中发生的部分放电活动的数据的方法，所述数据包括多个放电信号和多组三个值（包括以下步骤： - 将测量的三个电压值的每组（eu，ev，ew）转换成相应的放电信号（ed，eu，ev，ew） eq）电压值; - 从电压值的所述对（ed，eq）中的每一个获得相位角值; - 对每个放电信号赋予相应的相位值，以便将测量的放电信号作为相应的相位值的函数进行评估。用于处理与以方波电压供电的三相电机中发生的部分放电活动有关的现有技术用于将测量的放电信号作为事件的时间顺序进行评估，不可能将它们有效地放置在与电源电压，这导致测量数据的任何后续统计处理将没有什么意义。

15. 发明申请

US20090119035A1 METHOD AND APPARATUS FOR ANALYZING PARTIAL DISCHARGES IN ELECTRICAL DEVICES 有权
标题翻译：用于分析电气设备中部分放电的方法和装置
公开(公告)号：US20090119035A1
公开(公告)日：2009-05-07
申请号：US11935956
申请日：2007-11-06
申请人： Abdelkrim Younsi , Sameh Ramadan Salem , Weizhong Yan , Gian Carlo Montanari
发明人： Abdelkrim Younsi , Sameh Ramadan Salem , Weizhong Yan , Gian Carlo Montanari
IPC分类号： G06F19/00 , G01R31/02
CPC分类号： G01R31/1227 , G01R31/343
摘要： A method of analyzing partial discharge data collected from an electrical device includes collecting partial discharge data from a first electrical device belonging to a group of electrical devices. The group of electrical devices is at least partially defined by at least one electrical device classification. The method also includes generating a comparison of at least a portion of the partial discharge data collected from the first electrical device with at least a portion of the partial discharge data collected from at least one second electrical device. The at least one second electrical device is selected from the group of electrical devices that includes the first electrical device. The method further includes transmitting the results.
摘要翻译：分析从电气设备收集的局部放电数据的方法包括从属于一组电气设备的第一电气设备收集局部放电数据。该电子设备组至少部分地由至少一个电气设备分类限定。该方法还包括生成从第一电气设备收集的部分放电数据的至少一部分与从至少一个第二电气设备收集的局部放电数据的至少一部分的比较。所述至少一个第二电气设备选自包括第一电气设备的一组电气设备。该方法还包括传送结果。

16. 发明授权

US08527221B2 Method and an apparatus for monitoring an activity of partial electrical discharges in an electrical apparatus powered with direct voltage 有权
标题翻译：用于监视由直流电驱动的电气设备中的部分放电活动的方法和装置
公开(公告)号：US08527221B2
公开(公告)日：2013-09-03
申请号：US12670081
申请日：2008-01-29
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/00 , A41F1/00 , A41F1/08 , A44B1/04 , A44B11/25 , A44B17/00 , B42F1/00 , B42F1/02
CPC分类号： G01R31/1272
摘要： A method for monitoring an activity of partial electrical discharges in an electric apparatus powered with direct voltage comprises the following steps, repeated in succession at predetermined time intervals: measuring (1) analogue electrical signals and generating corresponding digital signals representative of the wave form of partial discharge impulses; deriving (2) for each of said digital signals, at least one shape parameter and at least one amplitude parameter; separating (3) the set of the measured data into homogeneous sub-sets with respect to the shape parameter; correlating (4) the sub-sets of signals having similar values of the shape parameter and measured in successive steps; selecting (5) the correlated sub-sets for which the amplitude parameter has a predetermined profile over time and attributing the signals of said subsets to partial discharge activities. The methods currently in use do not allow to monitor partial discharge activities in an apparatus in DC, because they do not allow to distinguish the signals relating to the partial discharges from those relating to noise or to disturbances.
摘要翻译：用于监视由直流电驱动的电气设备中的部分放电的活动性的方法包括以下步骤，以预定的时间间隔连续重复：测量（1）模拟电信号并产生代表部分波形的相应数字信号放电脉冲为每个所述数字信号导出（2）至少一个形状参数和至少一个振幅参数; 将所述测量数据的集合相对于所述形状参数分离（3）为均匀子集; 将（4）具有相似的形状参数值并且在连续步骤中测量的信号子集合; 选择（5）随着时间的推移，幅度参数具有预定轮廓的相关子集，并将所述子集的信号归因于局部放电活动。目前使用的方法不允许在DC设备中监测局部放电活动，因为它们不允许将与部分放电有关的信号与与噪声或干扰有关的信号区分开。

17. 发明申请

US20120215469A1 INSTRUMENT AND METHOD FOR MEASURING THE LOSS FACTOR OF AN ELECTRICAL APPARATUS 有权
标题翻译：用于测量电气设备损耗因子的仪器和方法
公开(公告)号：US20120215469A1
公开(公告)日：2012-08-23
申请号：US13504856
申请日：2010-10-27
申请人： Stefano Serra , Gian Carlo Montanari
发明人： Stefano Serra , Gian Carlo Montanari
IPC分类号： G06F19/00
CPC分类号： G01R27/2694 , G01R31/021 , G01R31/025
摘要： An instrument (1) for measuring the loss factor of an electrical apparatus (2) having an axially extending elongate geometry, in particular a medium voltage cable, comprises: at least a first and a second sensor (3A, 3B) connectable to the apparatus (2) in a first and a second measuring section (4A, 4B) axially spaced along the apparatus (2) by a predetermined quantity, respectively, and designed to measure respective values of the magnetic field generated outside the apparatus (2) by a load current flowing axially through the apparatus; a processing unit (5) designed to receive the magnetic field values measured by the sensors (3A, 3B) and programmed to derive from them a load loss value as a function of the difference between the measured magnetic field values.
摘要翻译：一种用于测量具有轴向延伸细长几何形状，特别是中压电缆的电气设备（2）的损耗因子的仪器（1）包括：至少一个可连接到该装置的第一和第二传感器（3A，3B）（2）分别沿着装置（2）轴向间隔预定量的第一和第二测量部分（4A，4B），并被设计成测量在装置（2）外产生的磁场的相应值负载电流轴向流过设备; 处理单元（5），被设计成接收由传感器（3A，3B）测量的磁场值，并被编程为从它们得出负载损耗值作为测量的磁场值之间的差的函数。

18. 发明申请

US20120022809A1 DEVICE AND METHOD FOR LOCATING PARTIAL DISCHARGES 有权
标题翻译：用于定位部分放电的装置和方法
公开(公告)号：US20120022809A1
公开(公告)日：2012-01-26
申请号：US13258335
申请日：2010-03-18
申请人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
发明人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
IPC分类号： G01R31/08 , G06F19/00
CPC分类号： G01R31/08 , G01R31/088 , G01R31/1272
摘要： A method for locating partial discharges occurring at a discharge site (2) in an electric apparatus (3) with elongate geometry and generating corresponding electric pulses (4) propagating in opposite directions along the apparatus (3) from the discharge site (2) comprises the steps of detecting (11) the electric pulses (4) picked up by a first and a second sensor (5, 7), operatively connected to the apparatus (3) and spaced out along it, and generating corresponding electric signals representative of the waveform of the pulses (4), selecting (12) at least one pair of signals, detected in the consecutive sensors (5, 7), and representative of a pair of homologous pulses (4), relating to the same partial discharge and propagating in opposite directions along the apparatus, deriving, for the signals of the selected pair of homologous pulses (4), at least one attenuation parameter, correlated with a quantity that is variable depending on the distance travelled by the pulses (4), calculating (13) the distance between the discharge site (2) and the sensors, based on processing the values of the attenuation parameter for the signals of the selected pair of homologous pulses (4).
摘要翻译：一种用于定位在具有细长几何形状的电气设备（3）中的放电部位（2）处发生的局部放电的方法，并且产生沿着装置（3）从放电部位（2）沿相反方向传播的对应电脉冲（4），包括检测（11）由第一和第二传感器（5,7）拾取的电脉冲（4）的步骤，可操作地连接到装置（3）并沿其间隔开，并产生代表脉冲（4）的波形，选择（12）在连续传感器（5,7）中检测到的至少一对信号，并代表一对同源脉冲（4），涉及相同的局部放电和传播沿着装置的相反方向，导出所选择的同步脉冲对（4）的信号，至少一个与根据脉冲（4）行进的距离可变的量相关的衰减参数，计算（13）基于对所选择的同源脉冲（4）的信号的衰减参数的值进行处理，排出部位（2）和传感器之间的距离。

19. 发明申请

US20100191486A1 METHOD AND AN APPARATUS FOR MONITORING AN ACTIVITY OF PARTIAL ELECTRICAL DISCHARGES IN AN ELECTRICAL APPARATUS POWERED WITH DIRECT VOLTAGE 有权
标题翻译：用于监测直接电压电气设备中部分电气放电活动的方法和装置
公开(公告)号：US20100191486A1
公开(公告)日：2010-07-29
申请号：US12670081
申请日：2008-01-29
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/02 , G06F19/00
CPC分类号： G01R31/1272
摘要： A method for monitoring an activity of partial electrical discharges in an electric apparatus powered with direct voltage comprises the following steps, repeated in succession at predetermined time intervals: measuring (1) analogue electrical signals and generating corresponding digital signals representative of the wave form of partial discharge impulses; deriving (2) for each of said digital signals, at least one shape parameter and at least one amplitude parameter; separating (3) the set of the measured data into homogeneous sub-sets with respect to the shape parameter; correlating (4) the sub-sets of signals having similar values of the shape parameter and measured in successive steps; selecting (5) the correlated sub-sets for which the amplitude parameter has a predetermined profile over time and attributing the signals of said subsets to partial discharge activities. The methods currently in use do not allow to monitor partial discharge activities in an apparatus in DC, because they do not allow to distinguish the signals relating to the partial discharges from those relating to noise or to disturbances.
摘要翻译：用于监视由直流电驱动的电气设备中的部分放电的活动性的方法包括以下步骤，以预定的时间间隔连续重复：测量（1）模拟电信号并产生代表部分波形的相应数字信号放电脉冲为每个所述数字信号导出（2）至少一个形状参数和至少一个振幅参数; 将所述测量数据的集合相对于所述形状参数分离（3）为均匀子集; 将（4）具有相似的形状参数值并且在连续步骤中测量的信号子集合; 选择（5）随着时间的推移，幅度参数具有预定轮廓的相关子集，并将所述子集的信号归因于局部放电活动。目前使用的方法不允许在DC设备中监测局部放电活动，因为它们不允许将与部分放电有关的信号与与噪声或干扰有关的信号区分开。

20. 发明授权

US09037438B2 Device and method for detecting and processing signals relating to partial electrical discharges 有权
标题翻译：用于检测和处理与部分放电有关的信号的装置和方法
公开(公告)号：US09037438B2
公开(公告)日：2015-05-19
申请号：US13503949
申请日：2010-10-29
申请人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
发明人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
IPC分类号： G06F15/00 , G01R31/14 , G01R31/12 , G01R15/14
CPC分类号： G01R31/14 , G01R15/142 , G01R31/12
摘要： A device (1) for detecting and processing signals relating to partial electrical discharges in an electrical apparatus (2) powered by a square-wave (3) voltage modulated by a modulating wave (4) in such a way as to form an alternating voltage of predetermined frequency, comprises: a sensor (5) connectable to the apparatus (2) for detecting a discharge signal (6) representing the electrical pulses generated by the partial discharges; a processing unit (7) connected to the sensor (5) to receive the discharge signal (6) and derive the detection instants of each of the pulses detected with respect to a predetermined time reference, a synchronization module (8) designed to receive an electrical signal (9) representing the power supply voltage and equipped with a filter (10) configured for extracting from said power supply signal (9) a signal (11) representing the modulating wave (4), the processing unit (7) being configured for associating with the pulses detected the values of a phase parameter (f) representing the phase of the modulating wave (4) at the pulse detection instants.
摘要翻译：一种用于检测和处理由由调制波（4）调制的方波（3）电压供电的电气设备（2）中与部分放电有关的信号的装置（1），以便形成交流电压包括：可连接到所述装置（2）的传感器（5），用于检测表示由所述局部放电产生的电脉冲的放电信号（6）; 连接到传感器（5）以接收放电信号（6）并导出相对于预定时间基准检测到的每个脉冲的检测时刻的处理单元（7），设计成接收表示电源电压的电信号（9），并配备有用于从所述电源信号（9）提取表示调制波（4）的信号（11）的滤波器（10），所述处理单元（7）被配置用于与所检测到的脉冲相关联的脉冲检测时刻的表示调制波（4）的相位的相位参数（f）的值。

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