公开(公告)号：US09234926B2

公开(公告)日：2016-01-12

申请号：US13806763

申请日：2011-06-22

Applicant: Stefano Rolli ,  Gianpaolo De Robertis ,  Stefano Serra ,  Gian Carlo Montanari

Inventor： Stefano Rolli ,  Gianpaolo De Robertis ,  Stefano Serra ,  Gian Carlo Montanari

IPC: G01R27/26 ,  H02H1/00 ,  H02H3/20

CPC classification number: G01R27/2694 ,  H02H1/00 ,  H02H3/20

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09035659B2

公开(公告)日：2015-05-19

申请号：US13806919

申请日：2011-06-22

Applicant: Stefano Rolli ,  Gianpaolo De Robertis ,  Stefano Serra ,  Gian Carlo Montanari

Inventor： Stefano Rolli ,  Gianpaolo De Robertis ,  Stefano Serra ,  Gian Carlo Montanari

IPC: G01R27/26 ,  G01R31/12

CPC classification number: G01R27/2694 ,  G01R27/2617 ,  G01R31/12

Abstract: An apparatus (1) for measuring the loss factor of an insulator (2) for medium or high voltages, equipped with a tap adapter (3) forming a point for picking up an electrical signal (4), comprises a reference capacitor (9) having a first electrode (10), which can be connected to the tap adapter (3), and a second electrode (11); a first voltage detection module (12) operatively connected to the first electrode (10) of the reference capacitor (9) for detecting a signal representative of the voltage applied to the reference capacitor (9); a generator module connected to the first electrode (10) of the reference capacitor (9) in order to inject a direct electric current into the insulator.

Abstract translation: 一种用于测量中等或高压的绝缘体（2）的损耗因子的装置（1），其配备有形成用于拾取电信号（4）的点的分接头（3），包括参考电容器（9） 具有能够连接到分接头适配器（3）的第一电极（10）和第二电极（11）; 第一电压检测模块（12），可操作地连接到参考电容器（9）的第一电极（10），用于检测代表施加到参考电容器（9）的电压的信号; 连接到参考电容器（9）的第一电极（10）的发生器模块，以便将直流电注入绝缘体。

公开(公告)号：US08972212B2

公开(公告)日：2015-03-03

申请号：US13504856

申请日：2010-10-27

Applicant: Stefano Serra ,  Gian Carlo Montanari

Inventor： Stefano Serra ,  Gian Carlo Montanari

IPC: G06F11/00 ,  G01R27/26 ,  G01R31/02

CPC classification number: G01R27/2694 ,  G01R31/021 ,  G01R31/025

Abstract: 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.

Abstract translation: 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，并被编程以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。

公开(公告)号：US09400305B2

公开(公告)日：2016-07-26

申请号：US13321452

申请日：2010-05-28

Applicant: Fabiano Bettio ,  Gian Carlo Montanari

Inventor： Fabiano Bettio ,  Gian Carlo Montanari

IPC: G06F19/00 ,  G01R31/12

CPC classification number: G01R31/1227

Abstract: An instrument for detecting partial electric discharges includes: an input stage set up to receive a discharge signal representative of one or more partial discharge pulses and a sync signal representative of an alternating voltage applied to the electric apparatus; a data processing stage for receiving the discharge signal and the sync signal, and extracting substantially in real time for each pulse detected the value of an amplitude parameter, correlated with a pulse amplitude, and the value of a phase parameter, representative of the phase of the voltage applied to the electric apparatus concurrently with the pulse, and transferring to output a processed digital signal including the values extracted. The processing stage includes a filtering module set up to disable substantially in real time the transfer to output of the values of the parameters extracted for one or more pulses.

Abstract translation: 一种用于检测局部放电的仪器包括：输入级，其设置为接收表示一个或多个局部放电脉冲的放电信号，以及表示施加到电气设备的交流电压的同步信号; 用于接收放电信号和同步信号的数据处理级，并且基本上实时地提取每个脉冲，检测与脉冲幅度相关的振幅参数的值和表示相位参数的相位参数的值 与脉冲同时施加到电气设备的电压，并且传送以输出包括提取的值的经处理的数字信号。 处理阶段包括一个过滤模块，该过滤模块设置成基本上实时地禁止向一个或多个脉冲提取的参数值的输出。

公开(公告)号：US09037438B2

公开(公告)日：2015-05-19

申请号：US13503949

申请日：2010-10-29

Applicant: Andrea Cavallini ,  Davide Fabiani ,  Gian Carlo Montanari

Inventor： Andrea Cavallini ,  Davide Fabiani ,  Gian Carlo Montanari

IPC: G06F15/00 ,  G01R31/14 ,  G01R31/12 ,  G01R15/14

CPC classification number: G01R31/14 ,  G01R15/142 ,  G01R31/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08990035B2

公开(公告)日：2015-03-24

申请号：US13581716

申请日：2011-03-04

Applicant: Stefano Serra ,  Gian Carlo Montanari ,  Fabiano Bettio

Inventor： Stefano Serra ,  Gian Carlo Montanari ,  Fabiano Bettio

IPC: G01R31/00 ,  G01R31/12 ,  G01R21/00

CPC classification number: G01R31/1227

Abstract: An instrument (1) and a method for detecting partial electric discharges involve acquiring a discharge signal (10), for example picked up by a direct-measuring impedance device (7) through a broadband HF acquisition channel (18), and acquiring the discharge signal (10) in a narrowband LF acquisition channel (180) complying with regulations, using on the LF acquisition channel (180) a trigger controlled in slave mode by a trigger of the broadband HF acquisition channel (18); they also involve acquiring another discharge signal (32) picked up by an indirect-measuring impedance device (8) through a second narrowband LF acquisition channel (180A) and comparing digital signals (34, 34A) generated in the first and second LF acquisition channels (180, 180A), in order to generate a balanced digital signal (36) without components representative of common mode electrical signals present in the measuring circuit.

Abstract translation: 仪器（1）和部分放电检测方法涉及获取例如由直接测量阻抗装置（7）通过宽带HF采集通道（18）拾取的放电信号（10），并获取放电 信号（10）在符合规定的窄带LF采集通道（180）中，在LF采集通道（180）上利用由宽带HF采集通道（18）的触发在从模式下控制的触发。 它们还涉及通过第二窄带LF采集通道（180A）获取由间接测量阻抗设备（8）拾取的另一个放电信号（32），并且比较在第一和第二LF采集通道中产生的数字信号（34,34A） （180,180A），以便产生平衡数字信号（36），而不存在表示测量电路中存在的共模电信号的分量。