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1. 发明申请

WO2019158751A1 SYSTEM AND METHOD FOR MONITORING AN OPERATING CONDITION OF AN ELECTRICAL DEVICE WHEN IN OPERATION 审中-公开
公开(公告)号：WO2019158751A1
公开(公告)日：2019-08-22
申请号：PCT/EP2019/053964
申请日：2019-02-18
申请人： FARADAY PREDICTIVE LIMITED
发明人： BATES, ANDREW , BOULTON, William , BANNISTER, Myles , ALFEIRAN, Bran , WALKER, Geoffrey
IPC分类号： G01R23/20 , G01R23/16 , G01R31/34 , H02H3/52 , H02H7/08
摘要： Disclosed is an electrical condition monitoring system that is connectable to an electrical device for monitoring the electrical device when in operation, wherein: (i) the electrical condition monitoring system includes (a) a sensing arrangement for temporally sensing an electrical supply to and/or from the electrical device and generating corresponding sensed data; (b) a data processing arrangement that is configured to process the sensed data to generate a corresponding temporally-changing Fourier spectrum including signal harmonic components and to process temporal changes in magnitudes and frequencies of the signal harmonic components to generate analysis data; and (ii) a user interface is configured for user entry of input for analyzing the analysis data and the data processing arrangement is configured to analyze the analysis data based on the input to obtain information indicative of operating condition of the electrical device; characterized in that: (iii) the data processing arrangement is operable to: identify at least one local maximum corresponding to a phenomenon on the temporally-changing Fourier spectrum; calculate locations on the temporally-changing Fourier spectrum where the same phenomenon appears to create a family of possible local maxima; identify a significant local maximum from the family of possible local maxima corresponding to the phenomenon and generate the analysis data from a magnitude of the significant local maximum; generate a real-time model of the electrical device based on the analysis data; and compare the real-time model with one or more stored models to generate information indicative of operating condition of the electrical device.

2. 发明申请

WO2012012426A3 CONTINUOUS UNINTERRUPTABLE AC GROUNDING SYSTEM FOR POWER SYSTEM PROTECTION 审中-公开
标题翻译：用于电力系统保护的连续不间断的交流接地系统
公开(公告)号：WO2012012426A3
公开(公告)日：2012-05-10
申请号：PCT/US2011044536
申请日：2011-07-19
申请人： EMPRIMUS INC , FAXVOG FREDERICK R , JENSEN WALLACE , NORDLING GALE , FUCHS GREG , JACKSON DAVID BLAKE , VOLKMANN TERRY LEE , RUEHL JAMES NICHOLAS , GROH BRIAN
发明人： FAXVOG FREDERICK R , JENSEN WALLACE , NORDLING GALE , FUCHS GREG , JACKSON DAVID BLAKE , VOLKMANN TERRY LEE , RUEHL JAMES NICHOLAS , GROH BRIAN
IPC分类号： H02H9/00 , H02H3/00 , H02H3/52 , H02H7/04
CPC分类号： H02H3/52 , H02H1/04 , H02H5/005 , H02H7/04 , Y10T307/625 , Y10T307/707 , Y10T307/735 , Y10T307/832
摘要： A continuous grounding system for use in an alternating current system including a transformer is disclosed. The system includes a switch assembly connected between a transformer neutral of a transformer and a ground, the switch assembly having an open position and a closed position, the open position disrupting the path through the switch assembly between the electrical connection and the transformer neutral, and the closed position establishing a path connecting the electrical connection to the transformer neutral through the switch assembly, wherein in normal operation of the alternating current electrical device the switch assembly remains in a closed position. The system also includes a DC blocking component positioned in parallel with the switch assembly and connected between the transformer neutral and the ground. The system further includes a control circuit configured to control the switch assembly, the control circuit including a sensor configured to actuate the switch assembly to an open position upon detection of a predetermined harmonic signal threshold at one of the transformer phases or a predetermined threshold of DC current between the transformer neutral and ground.
摘要翻译：公开了一种用于包括变压器的交流系统的连续接地系统。该系统包括连接在变压器的变压器中性点和接地之间的开关组件，开关组件具有打开位置和闭合位置，打开位置中断在电连接和变压器中性之间的开关组件的路径，以及闭合位置建立通过开关组件将电连接件连接到变压器中性点的路径，其中在交流电气装置的正常操作中，开关组件保持在关闭位置。该系统还包括与开关组件平行定位并连接在变压器中性线和地之间的直流阻塞部件。所述系统还包括配置成控制开关组件的控制电路，所述控制电路包括传感器，所述传感器被配置为在检测到所述变压器相之一处的预定谐波信号阈值或DC的预定阈值时将所述开关组件致动到打开位置变压器中性点和地之间的电流。

3. 发明申请

WO2010099585A1 METHOD AND DEVICE TO IDENTIFY, RECORD AND STORE TRAVELING WAVE HEADS, IN ELECTRIC POWER SYSTEMS 审中-公开
标题翻译：在电力系统中识别，记录和存储旅行波头的方法和设备
公开(公告)号：WO2010099585A1
公开(公告)日：2010-09-10
申请号：PCT/BR2010/000010
申请日：2010-01-12
申请人： REASON TECNOLOGIA S/A , SEIBEL, Conrado Werner , DUTRA, Carlos Alberto
发明人： SEIBEL, Conrado Werner , DUTRA, Carlos Alberto
IPC分类号： G01R31/08 , H02H3/52
CPC分类号： G01R31/08 , G01R31/086
摘要： Method and device to identify, record and store traveling wave heads in electric power systems consisting in sending a trigger(5) signal generated from the monitoring of the basic values of voltage and current of the electrical signal(1) of the transmission system in its fundamental frequency of operation (50/60 hz), where the generated trigger(5) signal is controlled by continuous monitoring of the parameters derived from the basic values of current and voltage and tested against thresholds previously set by a user.
摘要翻译：用于识别，记录和存储在电力系统中的行波头的方法和装置，包括发送由监视传输系统的电信号（1）的电压和电流的基本值的基础值产生的触发（5）信号基本的操作频率（50/60 hz），其中通过连续监测从电流和电压的基本值导出的参数来控制生成的触发（5）信号，并根据用户先前设置的阈值进行测试。

4. 发明申请

WO0143253A3 SYSTEM FOR POWER TRANSFORMER DIFFERENTIAL PROTECTION 审中-公开
标题翻译：电力变压器差分保护系统
公开(公告)号：WO0143253A3
公开(公告)日：2002-02-14
申请号：PCT/US0042292
申请日：2000-11-28
申请人： SCHWEITZER ENGINEERING LAB INC
发明人： GUZMAN-CASILLAS ARMANDO , ALTUVE FERRER HECTOR , ZOCHOLL STANLEY E , BENMOUYAL GABRIEL
IPC分类号： H02H1/04 , H02H3/52 , H02H7/045
CPC分类号： H02H7/045 , H02H1/043 , H02H3/52
摘要： Current transformer (CT) secondary currents for the windings of a power transformer are used to produce a differential current. An operating current value is obtained from the differential current value. A restraining current value is obtained from processed winding current values. Second and fourth harmonic values of the differential current are obtained and are summed with a restraining current quantity which is a result of the restraining current multiplied by a slope characteristic factor. If the operating current value is greater than the sum of the restraining current quantity and the second and fourth harmonic values, an output signal is produced which may be used as a trip signal unless it is blocked by selected blocking signals generated by another portion of the system.
摘要翻译：用于电力变压器绕组的电流互感器（CT）二次电流用于产生差分电流。从差动电流值获得工作电流值。从处理的绕组电流值获得约束电流值。获得差分电流的二次和四次谐波值，并将其作为抑制电流乘以斜率特性因子的结果的约束电流量相加。如果工作电流值大于抑制电流量与第二和第四谐波值之和，则产生可被用作跳闸信号的输出信号，除非被所选择的阻塞信号系统。

5. 发明申请

WO2014087205A1 A SELF SUPPLIED PROTECTION RELAY WITH A MODULE TO BOOST PERFORMANCE 审中-公开
标题翻译：具有提升性能的模块的自供应保护继电器
公开(公告)号：WO2014087205A1
公开(公告)日：2014-06-12
申请号：PCT/IB2013/001791
申请日：2013-08-19
申请人： ABB RESEARCH LTD.
发明人： SATHEESH, Hariram , DECK, Bernhard , KRISHNAMOORTHY, GN , KANDE, Mallikarjun , KOUL, Sanjeev , RAVAL, Naman , SHAH, Nayan , SHAH, Vishal, H.
IPC分类号： H02H1/06 , H02H3/10 , H02H3/16 , H02H3/52
CPC分类号： H02H1/063 , H02H3/05 , H02H3/093 , H02H3/105
摘要： The invention specifically relates to a protection relay that generates a trip signal to operate a circuit breaker in case of fault condition. The protection relay comprises of a first module (505) for measurement and analysis of power parameters of the power line connecting the power equipment that is being protected, the protection being provided by generating a first trip signal (540) for operating a circuit breaker connected in the power line. The protection relay also comprises of one or more second modules for boosting performance of the protection relay. There is second module that performs measurement and analysis of power parameters (503) to generate a second trip signal (530) for operating the circuit breaker connected in the power line. The first trip signal (540) and the second trip signal (530) from the protection relay are logically combined (550) to generate a trip signal (560) that operates the circuit breaker.
摘要翻译：本发明具体涉及在发生故障的情况下产生跳闸信号以操作断路器的保护继电器。保护继电器包括用于测量和分析连接被保护的电力设备的电力线的功率参数的第一模块（505），通过产生用于操作连接的断路器的第一跳闸信号（540）来提供保护在电力线上。保护继电器还包括用于提高保护继电器的性能的一个或多个第二模块。存在执行功率参数（503）的测量和分析以产生用于操作连接在电力线中的断路器的第二跳闸信号（530）的第二模块。来自保护继电器的第一跳闸信号（540）和第二跳闸信号（530）在逻辑上组合（550）以产生操作断路器的跳闸信号（560）。

6. 发明申请

WO2013184332A1 SYSTEM AND METHOD FOR HIGH RESISTANCE GROUND FAULT DETECTION AND PROTECTION IN POWER DISTRIBUTION SYSTEMS 审中-公开
标题翻译：电力分配系统中高电压接地故障检测与保护的系统与方法
公开(公告)号：WO2013184332A1
公开(公告)日：2013-12-12
申请号：PCT/US2013/041753
申请日：2013-05-20
申请人： EATON CORPORATION
发明人： LI, Huaqiang
IPC分类号： H02H3/52 , G01R31/02 , H02H7/122 , H02H3/16
CPC分类号： G01R31/025 , H02H3/165 , H02H3/52 , H02H7/1227
摘要： A system and method for detecting high resistance ground faults in a power distribution system is disclosed. A fault detection and protection system is provided that includes a plurality of current sensors to measure current on the three phase output of the converter-inverter arrangement of the power distribution system and a controller configured to measure the three phase current on the three phase output, extract a fundamental current component for each phase of the three phase output, extract a third harmonic component for each phase of the three phase output, compare the fundamental current component and the third harmonic component extracted from each phase to a first threshold and a second threshold, respectively, and detect a ground fault on a phase of the three phase output based on the comparisons of the fundamental current component and the third harmonic component to the first and second thresholds.
摘要翻译：公开了一种用于检测配电系统中的高电阻接地故障的系统和方法。提供一种故障检测和保护系统，其包括多个电流传感器，以测量配电系统的转换器 - 逆变器装置的三相输出端上的电流;以及控制器，被配置为测量三相输出上的三相电流，提取三相输出的每相的基波电流分量，提取三相输出的每相的三次谐波分量，将从每相提取的基波电流分量和三次谐波分量进行比较，将其从第一阈值和第二阈值并且基于基本电流分量和第三谐波分量与第一和第二阈值的比较来检测三相输出的相位上的接地故障。

7. 发明申请

WO2006121364A1 СПОСОБ И УСТРОЙСТВО ПРЕДУПРЕЖДЕНИЯ ПОЖАРА ОТ НЕИСПРАВНОСТЕЙ В ЭЛЕКТРИЧЕСКИХ СЕТЯХ И ЭЛЕКТРОУСТАНОВКАХ 审中-公开
标题翻译：用于防止电路中的缺陷引起的火灾和安排的方法和装置
公开(公告)号：WO2006121364A1
公开(公告)日：2006-11-16
申请号：PCT/RU2005/000251
申请日：2005-05-06
申请人： КОРОЛЕВ Игорь Сергеевич , КОРОЛЕВ Андрей Игоревич , НОВИКОВА Елена Игоревна
发明人： КОРОЛЕВ Игорь Сергеевич , КОРОЛЕВ Андрей Игоревич , НОВИКОВА Елена Игоревна
IPC分类号： G08B17/00 , H02H3/08 , H02H3/52
CPC分类号： H02H1/0015
摘要： Способ предупреждения пожара в электрических сетях и электроустановках включает измерение электрического тока контролируемого участка, выделение из него высокочастотной составляющей, усиление и выпрямление сигнала, определение величины тока искрения, формирование сигнала первой гармоники из спектра сигнала измеренного тока, измерение токов короткого замыкания, и (или) перегрузки и (или) утечки, и (или) измерение напряжения электрической сети, формирование сигнала предупреждения и (или) отключения контролируемого участка. Для определения тока искрения измеряют амплитуды сигнала и (или) другие параметры, характеризующие цикл "возникновение гашение искры". Устройство предупреждения пожара содержит блок формирования сигнала первой и более высоких гармоник, блок определения величины тока искрения, блоки измерения токов короткого замыкания, и (или) перегрузки и (или) утечки и (или) измерения напряжения электрической сети, блоки формирования сигнала предупреждения и (или) отключения контролируемого участка. Блок определения величины тока искрения снабжен устройствами измерения амплитуды сигнала и (или) других параметров, характеризующих цикл "возникновение-гашение искры".
摘要翻译：用于防止电路和布置中的火灾的本发明的方法在于，在确定火花电流值时，在形成第一谐波时，测量可控部分的电流，在分离其中的高频分量时，放大和整流第一谐波信号来自测量的电流信号范围，测量短路和/或过载和/或泄漏，和/或测量电路电压的信号，形成可控部分的警告和/或关闭信号。测量表征火花点火抑制循环的信号幅度和/或其它参数以确定火花电流。本发明的防火装置包括用于形成第一和高次谐波信号的单元，用于确定火花电流量的单元，用于测量短路和/或过载和/或漏电流的单元和/或电路电压测量电流，用于形成警告的单元和/或关闭可控段信号。所述火花电流量确定单元设置有用于测量表征火花点火抑制循环的信号幅度和/或其他参数的装置。

8. 发明申请

WO2006053567A2 COMPENSATION OF SIMPLE FIBEROPTIC FARADAY EFFECT SENSORS 审中-公开
标题翻译：简单的FIBEROPTIC FARADAY效应传感器的补偿
公开(公告)号：WO2006053567A2
公开(公告)日：2006-05-26
申请号：PCT/DK2005000737
申请日：2005-11-18
申请人： NESA AS , BJOERN LARS NOERGAARD
发明人： BJOERN LARS NOERGAARD
IPC分类号： G01R31/02 , H02H3/52 , H02J13/00
CPC分类号： H04W4/14 , G01R1/00 , G01R15/246 , G01R19/2513 , G01R31/025 , G01R33/0322 , H04L67/12
摘要： The present invention relates to a monitoring system for detecting earth faults in an electrical power supply grid. The system may comprise a plurality of monitoring devices mounted in a number of monitoring locations, each of the monitoring devices may include a detector for detecting level of harmonics in the electrical power. The level of harmonics is preferably detected in a specific frequency range. The monitoring devices may further include a memory device for storing a harmonics reference value and may still further include a processor for comparing the level of harmonics with the reference level. The monitoring device may even still further include a communication device for transmitting an alarm provided the level of harmonics is above the reference level for a specific period of time.
摘要翻译：本发明涉及一种用于检测电力电网中的接地故障的监控系统。该系统可以包括安装在多个监测位置的多个监测装置，每个监测装置可以包括用于检测电力中的谐波水平的检测器。优选在特定频率范围内检测谐波电平。监视装置还可以包括用于存储谐波参考值的存储器装置，并且还可以包括用于将谐波电平与参考电平进行比较的处理器。监视装置甚至可以进一步包括用于发送警报的通信装置，只要该等级的谐波高于参考电平达特定时间段即可。

9. 发明申请

WO01043253A2 SYSTEM FOR POWER TRANSFORMER DIFFERENTIAL PROTECTION 审中-公开
标题翻译：电力变压器差分保护系统
公开(公告)号：WO01043253A2
公开(公告)日：2001-06-14
申请号：PCT/US2000/042292
申请日：2000-11-28
IPC分类号： H02H1/04 , H02H3/52 , H02H7/045 , H02H
CPC分类号： H02H7/045 , H02H1/043 , H02H3/52
摘要： Current transformer (CT) secondary currents for the windings of a power transformer are used to produce a differential current. An operating current value is obtained from the differential current value. A restraining current value is obtained from processed winding current values. Second and fourth harmonic values of the differential current are obtained and are summed with a restraining current quantity which is a result of the restraining current multiplied by a slope characteristic factor. If the operating current value is greater than the sum of the restraining current quantity and the second and fourth harmonic values, an output signal is produced which may be used as a trip signal unless it is blocked by selected blocking signals generated by another portion of the system.
摘要翻译：用于电力变压器绕组的电流互感器（CT）二次电流用于产生差分电流。从差动电流值获得工作电流值。从处理的绕组电流值获得约束电流值。获得差分电流的二次和四次谐波值，并将其作为抑制电流乘以斜率特性因子的结果的约束电流量相加。如果工作电流值大于抑制电流量与第二和第四谐波值的和，则产生可被用作跳闸信号的输出信号，除非被所选择的阻塞信号系统。

10. 发明申请

WO2019158754A1 SYSTEM AND METHOD FOR MONITORING AN OPERATING CONDITION OF AT LEAST ONE ELECTRICAL DEVICE USING A DATA SERVER ARRANGEMENT 审中-公开
公开(公告)号：WO2019158754A1
公开(公告)日：2019-08-22
申请号：PCT/EP2019/053976
申请日：2019-02-18
申请人： FARADAY PREDICTIVE LIMITED
发明人： BATES, Andrew , WALKER, Geoffrey , BOULTON, William , BANNISTER, Myles , ALFEIRAN, Bran
IPC分类号： G01R23/20 , G01R23/16 , G01R31/34 , H02H3/52 , H02H7/08
摘要： Disclosed is an electrical condition monitoring system (100) including a data server arrangement that is connectable to a monitoring unit that is configured to monitor an electrical device when in operation, wherein: the monitoring unit includes a sensing arrangement for temporally sensing electrical signals associated with the electrical device and generating corresponding sensed data; and a data processing arrangement including a data processor that is configured to: (i) process the sensed data to generate a corresponding temporally-changing Fourier spectrum including signal harmonic components; (ii) process temporal changes in magnitudes and frequencies of the signal harmonic components to generate analysis data; and (iii) communicate the analysis data to the data server arrangement to perform at least one of: (a) aggregating the analysis data received from the monitoring unit to obtain aggregated analysis data; (b) generating aggregated performance results in respect of the electrical device based on the aggregated analysis data; (c) providing control signals to the monitoring unit to monitor operation of the electrical device based on the aggregated performance results of the electrical device; (d) generating alerts relating to the electrical device when the aggregated performance results of the electrical device exceeds a threshold level; and (e) generating a condition assessment of the electrical device, wherein a condition of the at least one electrical device is assessed based on comparison between a real-time model of the electrical device generated based on the analysis data with one or more stored models of the electrical device.

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