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1. 发明授权

US5742513A Methods and systems for automatic testing of a relay 失效
标题翻译：继电器自动测试方法和系统
公开(公告)号：US5742513A
公开(公告)日：1998-04-21
申请号：US647638
申请日：1996-05-15
申请人： Redjem Bouhenguel , James P. Garitty
发明人： Redjem Bouhenguel , James P. Garitty
IPC分类号： G01R31/327 , H02H3/04 , H02H3/00 , H02H7/26
CPC分类号： G01R31/3278 , H02H3/044
摘要： A system and method for automatically testing the operation of a protective relay system is disclosed. The system and method provide for continuous testing to ensure proper operation of the protective relay system while the relay remains in service and without interrupting the normal operation of the relay. This testing is performed by storing reference data corresponding to test signals, generating test signals, sampling a specific test signal, processing that test signal through the relay and comparing the processed test signal with the corresponding reference data. Upon detection of an error in the relay, the system and method further provide for isolation of the relay from the electric power system and automatic testing of individual electrical components within the protective relay system to determine the identity of the malfunctioning component. The method of determining the malfunctioning component requires: selecting a component for testing, generating a test signal, providing the test signal as an input to the selected component, processing the test signal through the selected component and the subsequent component in the protective relay system and comparing the processed test signal with corresponding reference data. Finally, the system and method further provide for automatic correction of the malfunctioning component, if possible.
摘要翻译：公开了一种用于自动测试保护继电器系统的操作的系统和方法。该系统和方法提供连续测试，以确保继电器在使用中保护继电器系统的正常工作，并且不会中断继电器的正常工作。该测试通过存储对应于测试信号的参考数据，产生测试信号，采样特定测试信号，通过继电器处理该测试信号并将处理的测试信号与相应的参考数据进行比较来执行。在检测到继电器中的错误时，系统和方法进一步提供了继电器与电力系统的隔离以及保护继电器系统内的各个电气部件的自动测试，以确定故障部件的身份。确定故障部件的方法要求：选择用于测试的部件，产生测试信号，提供测试信号作为所选部件的输入，通过选择的部件和保护继电器系统中的后续部件处理测试信号，以及将处理的测试信号与相应的参考数据进行比较。最后，如果可能，该系统和方法进一步提供故障部件的自动校正。

2. 发明授权

US4972290A Electric power system with remote monitoring and control of protective relays 失效
标题翻译：具有远程监控和保护继电器控制的电力系统
公开(公告)号：US4972290A
公开(公告)日：1990-11-20
申请号：US414975
申请日：1989-09-29
申请人： Shan C. Sun , John S. Wargo , James P. Garitty
发明人： Shan C. Sun , John S. Wargo , James P. Garitty
IPC分类号： H02H3/04 , H02H7/26
CPC分类号： H02H3/04 , H02H7/261
摘要： Monitoring and control of analog electromechanical protective relays and digital mcroprocessor based relays is integrated through a system including slave stations which record and time tag contact activity at each of the analog relays. The slave stations continuously retain digital samples of a predetermined number of the most recent cycles of the currents and voltages at the analog relays and when a trip occurs store the retained samples as pre-fault values together with a preset number of post-fault samples. A master station communicates with the slave stations monitoring the analog relays and with the digital relays through a two way communications network. The master station repetitively polls the slave stations and digital relays for contact activity. Detailed data such as the time tags and pre-fault and post-fault currents and voltages are then requested from those stations reporting contact activity. Either the slave stations or master station calculate fault location and type from the fault voltages and currents, an periodically calculate routine metering parameter such as watts and VARs.
摘要翻译：模拟机电保护继电器和基于数字微处理器的继电器的监测和控制通过包括从站在内的系统进行集成，该从站记录每个模拟继电器的时间标签接触活动。从站在模拟继电器处连续地保持预定数量的最近的电流和电压周期的数字采样，并且当跳闸发生时，将保留的采样作为预故障值与预设数量的故障后样本一起存储。主站通过双向通信网络与监控模拟继电器和数字继电器的从站进行通信。主站重复轮询从站和数字继电器进行接触活动。然后从报告接触活动的那些站请求诸如时间标签和故障前和故障后电流和电压的详细数据。从站或主站都可以根据故障电压和电流来计算故障位置和类型，定期计算例如瓦特和VAR的常规测量参数。

3. 发明授权

US5027297A System for time stamping events using a remote master clock 失效
标题翻译：使用远程主时钟的时间戳事件系统
公开(公告)号：US5027297A
公开(公告)日：1991-06-25
申请号：US414999
申请日：1989-09-29
申请人： James P. Garitty , Thomas M. Yocom
发明人： James P. Garitty , Thomas M. Yocom
IPC分类号： G04G99/00 , G06F11/34 , G06F17/40
CPC分类号： G04G99/00 , G06F11/3495 , H02H1/0061
摘要： Events at spaced locations, such as contact activity in the protective relays of an electric power distribution network, are time stamped using a single remote clock by a system which includes one or more slave stations monitoring the events. Each slave station initiates a count of locally generated clocking pulses of fixed duration upon detection of the first event monitored by it. Identification of the first event is stored in a first slot in memory. Additional memory slots each store the identification of a subsequent event and the count at the occurrence of that subsequent event. Upon command from a remote master station, the current count is stored in the first slot and the contents of the first slot and of the additional slots are transmitted over a communications network to the master station. The master station calculates the absolute time of each event using its master clock, the transmitted counts, the fixed duration of the clocking pulses, and the transmission time required to transmit the data from the particular slave station to the master station. The master station then sends a clear command to reset the count and clear the memory slots. If the number of events detected by a slave station before a clear command is received exceeds the number of memory slots available, the information on the first event stored in the first slot is retained, and the additional slots retain data on as many of the most recent events as there are additional slots.
摘要翻译：间隔位置的事件，例如配电网络的保护继电器中的接触活动，使用包括监视事件的一个或多个从站的系统使用单个远程时钟进行时间戳。每个从站在检测到由其监控的第一个事件时，启动固定持续时间的本地产生的定时脉冲计数。第一个事件的识别被存储在存储器的第一个槽中。附加的存储器插槽每个存储后续事件的标识以及在后续事件发生时的计数。根据来自远程主站的命令，当前计数被存储在第一时隙中，并且第一时隙和附加时隙的内容通过通信网络发送到主站。主站使用其主时钟，发送计数，定时脉冲的固定持续时间以及将数据从特定从站发送到主站所需的传输时间来计算每个事件的绝对时间。然后，主站发送清除命令来重置计数并清除内存插槽。如果在接收到清除命令之前由从站检测到的事件数量超过可用的存储器插槽的数量，则保留存储在第一时隙中的第一事件的信息，并且附加插槽将数据保留在最多的最近的事件，因为有额外的插槽。

4. 发明授权

US4725914A Protective relay system for performing selective-pole trip determination 失效
标题翻译：用于执行选择极跳闸判定的保护继电器系统
公开(公告)号：US4725914A
公开(公告)日：1988-02-16
申请号：US942334
申请日：1986-12-16
申请人： James P. Garitty
发明人： James P. Garitty
IPC分类号： H02H7/26 , H02H3/38
CPC分类号： H02H7/263
摘要： Apparatus for performing selective-pole trip determination is included in each protective relay of a current only monitoring protective relay system for protecting an electrical transmission segment of a power system network against faults. Current signals from the phases of the transmission segment are provided to a sequence network of the apparatus for conversion into positive and negative sequence component signals for each phase. A zero sequence component signal is also derived. A logic circuit is provided for each of the phases of the transmission segment and is governed by the corresponding sequence component signals and phase shifted variations thereof to detect a single-pole fault exclusively in the corresponding phase and generate a signal in response to the detection. An internal trip detection enables each phase logic circuit to generate its corresponding trip signal. Each protective relay further includes multi-phase trip logic circuitry governed by the positive, negative and zero sequence component signals and phase shifted variations thereof to generate phase-to-phase and phase-to-phase-to-ground fault signals.
摘要翻译：用于执行选择极跳闸判定的装置包括在仅电流监视保护继电器系统的每个保护继电器中，用于保护电力系统网络的电力传输段免受故障。来自传输段的相位的当前信号被提供给装置的序列网络，用于转换成每个相位的正序和负序分量信号。还导出零序分量信号。为传输段的每个相位提供逻辑电路，并且由相应的序列分量信号及其相移变化来控制，以检测专用于相应相位的单极故障，并响应于检测产生信号。内部跳闸检测使每个相位逻辑电路能够产生其对应的跳闸信号。每个保护继电器还包括由正，负和零序分量信号及其相移变化控制的多相跳闸逻辑电路，以产生相间和相间对地故障信号。

5. 发明授权

US4538196A Protective relay apparatus and method for providing single-pole tripping 失效
标题翻译：保护继电器装置及方法，提供单极脱扣
公开(公告)号：US4538196A
公开(公告)日：1985-08-27
申请号：US487480
申请日：1983-04-22
申请人： Shan C. Sun , James P. Garitty
发明人： Shan C. Sun , James P. Garitty
IPC分类号： H02H3/26 , H02H7/26 , H02H3/30
CPC分类号： H02H7/263
摘要： A new protective relay for determining the occurrence of a single-phase-to-ground fault and tripping the appropriate circuit breaker. At local and remote terminals of a protected line segment, three signals representative of an electrical parameter on each phase conductor are input to a local and remote protective relay. In both the local and remote protective relays, the three electrical parameter signals are manipulated to produce two evaluation signals. The two local evaluation signals produced in the local protective relay are transmitted to the remote protective relay, and the two remote evaluation signals produced in the remote protective relay are transmitted to the local protective relay. In the local protective relay the two local evaluation signals are manipulated to produce a third local evaluation signal, and the two remote evaluation signals are manipulated to produce a third remote evaluation signal. The six evaluation signals are vectorially-compared to determine on which phase the fault has occurred. Only the circuit interrupter associated with the faulted phase conductor is tripped. If a fault involves two or more phase conductors, all three circuit interrupters are tripped. Similar signal processing occurs in the remote protective relay.
摘要翻译：一种新的保护继电器，用于确定单相接地故障的发生并跳闸适当的断路器。在受保护线路段的本地和远程终端，表示每个相导体上的电气参数的三个信号被输入到本地和远程保护继电器。在本地和远程保护继电器中，操作三个电参数信号以产生两个评估信号。本地保护继电器产生的两个本地评估信号被传送到远程保护继电器，远程保护继电器中产生的两个远程评估信号传输到本地保护继电器。在本地保护继电器中，操纵两个本地评估信号以产生第三局部评估信号，并操纵两个远程评估信号以产生第三远程评估信号。六个评估信号进行矢量比较，以确定故障发生在哪个阶段。只有与故障相导体相关的断路器才会跳闸。如果故障涉及两个或多个相导体，则所有三个断路器都跳闸。远程保护继电器中发生类似的信号处理。

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