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81. 发明申请

US20090251308A1 THREE-PHASE FAULTED CIRCUIT INDICATOR 有权
标题翻译：三相故障电路指示器
公开(公告)号：US20090251308A1
公开(公告)日：2009-10-08
申请号：US12417893
申请日：2009-04-03
申请人： Edmund O. Schweitzer, III , Laurence V. Feight , James Manely Duros , Joseph Robert Rauch
发明人： Edmund O. Schweitzer, III , Laurence V. Feight , James Manely Duros , Joseph Robert Rauch
IPC分类号： G08B1/08 , G01R19/00 , G01R31/00 , G08B21/00
CPC分类号： G01R31/025 , G01R1/22 , G01R15/20 , G01R19/16571
摘要： A three-phase faulted circuit indicator adjustable to accommodate a variety of three-phase power cables is disclosed. In one embodiment, faulted circuit indicator comprises a flexible holder that encircles the monitored conductor slightly more than one time. The flexible holder includes a plurality of magnetic sensors for monitoring the current within the internal conductors of the power cable, a logic circuit for determining the occurrence of a fault, and an output device for providing an indication of a fault. In a second embodiment, the faulted circuit indicator comprises a plurality of sensor compartments, each disposed about a central point, and each coupled to two other sensor compartments.
摘要翻译：公开了可调节以适应各种三相电力电缆的三相故障电路指示器。在一个实施例中，故障电路指示器包括柔性保持器，其稍微超过一次地围绕被监视的导体。柔性保持器包括用于监测电力电缆的内部导体内的电流的多个磁性传感器，用于确定故障发生的逻辑电路以及用于提供故障指示的输出装置。在第二实施例中，故障电路指示器包括多个传感器隔间，每个传感器隔间围绕中心点设置，并且每个传感器隔间耦合到另外两个传感器隔间。

82. 发明申请

US20090088990A1 SYNCHRONIZED PHASOR PROCESSOR FOR A POWER SYSTEM 审中-公开
标题翻译：用于电力系统的同步相位处理器
公开(公告)号：US20090088990A1
公开(公告)日：2009-04-02
申请号：US12239684
申请日：2008-09-26
申请人： Edmund O. Schweitzer, III , David E. Whitehead , Armando Guzman-Casillas , Charles E. Petras
发明人： Edmund O. Schweitzer, III , David E. Whitehead , Armando Guzman-Casillas , Charles E. Petras
IPC分类号： G01R31/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A device is provided for monitoring and controlling various power system device and elements. The device generally includes a communications channel for receiving phasor data associated with a location on the power system. The device further includes a logic engine which performs scalar, vector and/or other complex calculation based on the phasor data to provide control data or an output signal for effecting the various other power system devices or elements to provide local or wide area protection, control, and monitoring to maintain power system stability.
摘要翻译：提供了用于监测和控制各种电力系统装置和元件的装置。该装置通常包括用于接收与电力系统上的位置相关联的相量数据的通信信道。该装置还包括逻辑引擎，其基于相量数据执行标量，向量和/或其他复杂计算，以提供控制数据或输出信号，以实现各种其他电力系统装置或元件以提供局部或广域保护，控制，并监控电力系统的稳定性。

83. 发明授权

US07375941B2 Protective relay capable of protection applications without protection settings 有权
标题翻译：保护继电器，无需保护设置即可保护应用
公开(公告)号：US07375941B2
公开(公告)日：2008-05-20
申请号：US11582257
申请日：2006-10-16
申请人： Edmund O. Schweitzer, III , Tony J. Lee
发明人： Edmund O. Schweitzer, III , Tony J. Lee
IPC分类号： H02H7/00
CPC分类号： H02H3/286 , H02H7/30
摘要： The current differential relay operates without adjustable settings, and includes a phase current differential element with a predetermined threshold, responsive to local phase current values and remote phase current values, to detect three-phase faults and producing a first output signal if the threshold value is exceeded. Either a negative sequence current differential element or two phase current differential elements, also having predetermined threshold values and responsive to the local and remote phase currents, detect phase-to-phase faults and phase-to-phase-to-ground faults and produces a second output signal if the predetermined threshold is exceeded. A negative sequence or zero sequence current differential current element, with a predetermined threshold value is responsive to the local and remote phase currents to detect phase-to-ground faults and to produce a third output signal if the threshold is exceeded. If any one of the first, second and third output signals occurs, a trip signal is generated and directed to the associated circuit breaker. The thresholds are selected to permit use of the relay in a wide range of possible applications.
摘要翻译：电流差动继电器在没有可调设置的情况下运行，并且包括具有预定阈值的相电流差动元件，响应于局部相电流值和远端相电流值，以检测三相故障并产生第一输出信号，如果阈值为超过了还具有预定阈值并且响应于局部和远端相电流的负序电流差分元件或两相电流差动元件检测相间故障和相间到地层故障，并产生一个如果超过预定阈值，则输出第二输出信号。具有预定阈值的负序或零序电流差动电流元件响应于本地和远端相电流来检测相对地故障，并且如果超过阈值则产生第三输出信号。如果发生第一，第二和第三输出信号中的任何一个，则产生跳闸信号并将其引导到相关联的断路器。选择阈值以允许在广泛的可能应用中使用继电器。

84. 发明授权

US07123459B2 Protective relay capable of protection applications without protection settings 有权
标题翻译：保护继电器，无需保护设置即可保护应用
公开(公告)号：US07123459B2
公开(公告)日：2006-10-17
申请号：US10409355
申请日：2003-04-07
申请人： Edmund O. Schweitzer, III , Tony J. Lee
发明人： Edmund O. Schweitzer, III , Tony J. Lee
IPC分类号： H02H3/00
CPC分类号： H02H3/286 , H02H7/30
摘要： The current differential relay operates without adjustable settings, and includes a phase current differential element with a predetermined threshold, responsive to local phase current values and remote phase current values, to detect three-phase faults and producing a first output signal if the threshold value is exceeded. Either a negative sequence current differential element or two phase current differential elements, also having predetermined threshold values and responsive to the local and remote phase currents, detect phase-to-phase faults and phase-to-phase-to-ground faults and produces a second output signal if the predetermined threshold is exceeded. A negative sequence or zero sequence current differential current element, with a predetermined threshold value is responsive to the local and remote phase currents to detect phase-to-ground faults and to produce a third output signal if the threshold is exceeded. If any one of the first, second and third output signals occurs, a trip signal is generated and directed to the associated circuit breaker. The thresholds are selected to permit use of the relay in a wide range of possible applications.
摘要翻译：电流差动继电器在没有可调设置的情况下运行，并且包括具有预定阈值的相电流差动元件，响应于局部相电流值和远端相电流值，以检测三相故障并产生第一输出信号，如果阈值为超过了还具有预定阈值并且响应于局部和远端相电流的负序电流差分元件或两相电流差动元件检测相间故障和相间到地层故障，并产生一个如果超过预定阈值，则输出第二输出信号。具有预定阈值的负序或零序电流差动电流元件响应于本地和远端相电流来检测相对地故障，并且如果超过阈值则产生第三输出信号。如果发生第一，第二和第三输出信号中的任何一个，则产生跳闸信号并将其引导到相关联的断路器。选择阈值以允许在广泛的可能应用中使用继电器。

85. 发明授权

US06567256B1 Dual protective relay for power systems 失效
标题翻译：电力系统双保护继电器
公开(公告)号：US06567256B1
公开(公告)日：2003-05-20
申请号：US08416436
申请日：1995-03-31
申请人： Edmund O. Schweitzer, III
发明人： Edmund O. Schweitzer, III
IPC分类号： H01H4732
CPC分类号： H02H7/261 , H02H1/0038 , H02H3/05
摘要： The relay obtains three-phase current signals from two power line sources thereof, typically two independent feeder lines. The two sets of signals are processed by a single processing means, which independently controls the circuit breakers associated with each feeder line, depending on the values of current obtained.
摘要翻译：继电器从两个电力线源获得三相电流信号，通常为两条独立的馈线。两组信号由单个处理装置处理，该处理装置根据所获得的电流的值来独立地控制与每个馈线相关联的断路器。

86. 发明授权

US6011480A Protection quality capability for protective relays used in an electric power system 失效
标题翻译：电力系统中使用的保护继电器的保护质量能力
公开(公告)号：US6011480A
公开(公告)日：2000-01-04
申请号：US898793
申请日：1997-07-23
申请人： Edmund O. Schweitzer, III , Jeffrey B. Roberts
发明人： Edmund O. Schweitzer, III , Jeffrey B. Roberts
IPC分类号： H02H3/04 , G08B21/00
CPC分类号： H02H3/04
摘要： The system for determining protection quality of a protective relay and related functions of the protection system include obtaining information concerning the output status of the various protective elements in the relay. The status of various operations in the protective element are also evaluated against specific standards. The operation of supervisory and control elements affecting the action protective elements are also evaluated. Other aspects of the relay, including the availability of the relay and the operation of the voltage and current transformers are also evaluated. In addition, associated aspects such as the status of the communication channels, the station voltage availability and the condition of the trip and close circuits are monitored. All of the above is analyzed in a summary report to provide an indication of protection quality for the relay and associated protection system functions.
摘要翻译：用于确定保护继电器的保护质量的系统和保护系统的相关功能包括获得关于继电器中各种保护元件的输出状态的信息。保护要素中各种作业的状况也按照具体标准进行评估。还对影响行动保护要素的监督和控制要素的运行情况进行了评估。还评估了继电器的其他方面，包括继电器的可用性和电压和电流互感器的操作。此外，监视诸如通信信道的状态，站电压可用性以及跳闸和关闭电路的状况等相关方面。所有上述内容都在总结报告中进行分析，以提供继电器和相关保护系统功能的保护质量指示。

87. 发明授权

US5793595A Multi-application relay for power systems 失效
标题翻译：电力系统多应用继电器
公开(公告)号：US5793595A
公开(公告)日：1998-08-11
申请号：US527287
申请日：1995-09-12
申请人： Edmund O. Schweitzer, III , Stanley E. Zocholl
发明人： Edmund O. Schweitzer, III , Stanley E. Zocholl
IPC分类号： H02H3/00
CPC分类号： H02H3/00
摘要： A microprocessor-based multifunction overcurrent relay for protecting power systems has a plurality of overcurrent elements implemented in a software program. Sufficient overcurrent elements are provided to accomplish a selected one of three independent applications, including feeder protection, motor protection, or breaker failure protection. The relay includes elements for selecting one application by the user from the three possible applications and produces output signals when an overcurrent condition is determined.
摘要翻译：用于保护电力系统的基于微处理器的多功能过电流继电器具有在软件程序中实现的多个过电流元件。提供足够的过电流元件以完成三个独立应用中选择的一个，包括馈线保护，电机保护或断路器故障保护。继电器包括用户从三个可能的应用中选择一个应用的元件，并且当确定过电流条件时产生输出信号。

88. 发明授权

US5041737A Programmable bus-tie relay having a plurality of selectable setting groups 失效
标题翻译：具有多个可选设置组的可编程总线中继继电器
公开(公告)号：US5041737A
公开(公告)日：1991-08-20
申请号：US470061
申请日：1990-01-25
申请人： Edmund O. Schweitzer, III , Jeffrey B. Roberts
发明人： Edmund O. Schweitzer, III , Jeffrey B. Roberts
IPC分类号： H02H3/00
CPC分类号： H02H3/006 , Y10T307/74 , Y10T307/826
摘要： A bus-tie relay apparatus which includes a multi-position mechanical switch (54) and a logic circuit (56) responsive to the position of the mechanical switch (54) for producing digital signals on five digital lines (58), wherein a valid digital signal comprises the presence of high conditions on two, and two only, of said digital lines (58). A sensor (80) senses the condition of the digital lines (58) and retrieves the values of a relay element setting group from memory associated with that digital signal. A plurality of such relay element setting groups are stored in the apparatus, each one of which comprises values corresponding to the characteristics of an inplace relay associated with a particular one transmission line in a group thereof.
摘要翻译：一种汇流中继装置，包括多位机械开关（54）和响应于机械开关（54）的位置的逻辑电路（56），用于在五个数字线路（58）上产生数字信号，其中有效数字信号包括在所述数字线路（58）的两个且仅两个上存在高条件。传感器（80）感测数字线（58）的状态，并且从与该数字信号相关联的存储器中检索中继元件设置组的值。多个这样的中继元件设置组被存储在该装置中，每一个包括与其组中的特定一个传输线相关联的内置继电器的特性对应的值。

89. 发明授权

US4766549A Single-ended transmission line fault locator 失效
标题翻译：单端传输线故障定位器
公开(公告)号：US4766549A
公开(公告)日：1988-08-23
申请号：US676747
申请日：1984-11-30
申请人： Edmund O. Schweitzer, III , Masaoki Ando
发明人： Edmund O. Schweitzer, III , Masaoki Ando
IPC分类号： G01R31/08 , G01R31/11 , H02H7/26 , G06F15/56
CPC分类号： G01R31/088 , G01R31/11 , H02H7/265
摘要： A system for locating faults on a transmission line by taking measurements at only one end of the line.
摘要翻译：一种用于通过在线路的一端进行测量来定位传输线路上的故障的系统。

90. 发明授权

US4300182A Metering and protection system for an A.C. power system 失效
标题翻译：交流电系统的计量和保护系统
公开(公告)号：US4300182A
公开(公告)日：1981-11-10
申请号：US65158
申请日：1979-08-09
申请人： Edmund O. Schweitzer, III
发明人： Edmund O. Schweitzer, III
IPC分类号： G01R21/00 , H02H3/38 , H02H3/00
CPC分类号： H02H3/38 , G01R21/00
摘要： A system for electronically metering an A.C. electrical power system to derive performance parameters such as real and reactive power useful in revenue metering and fault protection applications. Voltage and current sensors associated with the power system provide isolated output signals proportional to the voltage and current in the system. From these signals finite-duration impulse-response filters periodically determine Walsh function correlation coefficients by integrating the voltage and current signals at least once during each period of the power system and periodically sampling and holding the integrated signal in sequence with the integration. The present and a plurality of immediately preceding correlation coefficient values are stored in memory, and by combination of the correlation coefficients by addition, subtraction or multiplication, power system performance parameters, such as real power, reactive power, voltage, current, or power factor, are obtained for utilization in revenue metering or overload protection applications. Related methods are also disclosed.
摘要翻译：一种用于电子计量交流电力系统的系统，用于导出诸如有效和无功功率之类的性能参数，用于收入计费和故障保护应用。与电力系统相关的电压和电流传感器提供与系统中电压和电流成比例的隔离输出信号。从这些信号中，有限持续脉冲响应滤波器通过在电力系统的每个周期期间至少一次积分电压和电流信号来周期性地确定沃尔什函数相关系数，并且周期性地采集并保持积分信号与积分顺序。当前和多个紧接在前的相关系数值存储在存储器中，并且通过加法，减法或乘法的相关系数的组合，电力系统性能参数，如有功功率，无功功率，电压，电流或功率因数，用于收益计量或过载保护应用。还公开了相关方法。

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