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    • 6. 发明授权
    • Protection system having reduced energy let-through mode and zone selectivity
    • 保护系统具有降低的能量通过模式和区域选择性
    • US08385035B2
    • 2013-02-26
    • US12837958
    • 2010-07-16
    • Radoslaw NarelThomas Frederick Papallo, Jr.Joseph Rao
    • Radoslaw NarelThomas Frederick Papallo, Jr.Joseph Rao
    • H02H5/00
    • H02H7/30H02H3/006H02H7/261H02H9/00
    • A method to protect a circuit having at least a first circuit breaker, and a second circuit breaker arranged upstream of said first circuit breaker, said first circuit breaker having configuration settings selectable between a normal mode and an alternate mode, the alternate mode setting including a reduced energy let-thru (RELT) mode setting having a RELT mode trip time delay. The method including determining if said first circuit breaker is configured in said RELT mode, determining a. dynamic delay time for opening said second circuit breaker, wherein said dynamic delay time is based at least in part on said RELT mode trip time delay of said first circuit breaker, and triggering said second circuit breaker to open after said dynamic delay time has elapsed.
    • 一种保护具有至少第一断路器的电路和布置在所述第一断路器上游的第二断路器的方法,所述第一断路器具有可在正常模式和备用模式之间选择的配置设置,所述替代模式设置包括 降低能量通过(RELT)模式设置,具有RELT模式跳闸时间延迟。 所述方法包括确定所述第一断路器是否配置在所述RELT模式中,确定用于打开所述第二断路器的动态延迟时间,其中所述动态延迟时间至少部分地基于所述第一电路的所述RELT模式跳闸时间延迟 断路器,并且在所述动态延迟时间过去之后触发所述第二断路器打开。
    • 8. 发明授权
    • Relay device and corresponding method
    • 继电器及相应的方法
    • US07599161B2
    • 2009-10-06
    • US11618192
    • 2006-12-29
    • William PremerlaniMarcelo ValdesThomas Frederick Papallo, Jr.Gregory P. LavoieRadoslaw Narel
    • William PremerlaniMarcelo ValdesThomas Frederick Papallo, Jr.Gregory P. LavoieRadoslaw Narel
    • H02H7/00
    • H02H7/30H02H3/28H02H3/387
    • A method of operating a relay device, in an electrical circuit comprising first and second main circuit breakers, and a bus tie circuit breaker connecting the first and second main circuit breakers, the method comprising computing a first positive sequence current phasor for the first main circuit breaker and a second positive sequence current phasor for the second main circuit breaker computing a first positive sequence voltage phasor for the first main circuit breaker and a second positive sequence voltage phasor for the second main circuit breaker; computing a correction of the first positive sequence voltage and second positive sequence voltage to a line-to-neutral phase angle reference if there is any rotation in a potential transformer connection; determining a fault has occurred when a magnitude of a current through at least one of the first main circuit breaker or the second main circuit breaker exceeds a predetermined threshold; determining a phase angle difference by comparing the phase angle of the positive sequence current phasor with the phase angle of the positive sequence voltage phasor for both the first main circuit breaker or the second main circuit breaker having the magnitude of current determined to have exceeded the predetermined level; and determining the fault is located upstream or downstream of the first main circuit breaker or the second main circuit breaker having the magnitude of current determined to have exceeded the predetermined level, if the phase angle difference is determined to be above a predetermined amount.
    • 一种在包括第一和第二主断路器的电路中的中继装置的操作方法和连接第一和第二主断路器的总线连接断路器,该方法包括:计算第一主电路的第一正序电流相量 断路器和用于第二主断路器的第二正序电流相量计算第一主断路器的第一正序电压相量和用于第二主断路器的第二正序电压相量; 如果在电压互感器连接中存在任何旋转,则将第一正序电压和第二正序电压的校正计算为线到中性相角参考; 当通过第一主断路器或第二主断路器中的至少一个的电流的大小超过预定阈值时,发生故障; 通过将正序电流相量的相位角与正序电压相量的相位角进行比较来确定相位角差,第一主断路器或具有确定超过预定值的电流大小的第二主断路器 水平; 并且如果相位角差被确定为高于预定量,则确定故障位于具有被确定为已经超过预定水平的电流大小的第一主断路器或第二主断路器的上游或下游。
    • 9. 发明授权
    • Relay device and corresponding method
    • 继电器及相应的方法
    • US07542256B2
    • 2009-06-02
    • US11618175
    • 2006-12-29
    • William PremerlaniMarcelo ValdesThomas Frederick Papallo, Jr.Radoslaw NarelGregory P. Lavoie
    • William PremerlaniMarcelo ValdesThomas Frederick Papallo, Jr.Radoslaw NarelGregory P. Lavoie
    • H02H7/00
    • H02H7/30H02H3/081
    • A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone;—assigning a second value to the direction of the fault currents flowing out of the partial-differential-zone, wherein the first value is not equal to the second value;—comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.
    • 一种操作中继装置的方法,所述方法包括以下步骤:提供主断路器和连接所述主断路器的总线断路器; 限定包括主断路器和母线断路器的部分差分区; 向流入所述部分差分区域的故障电流的方向分配第一值; - 将第二值分配到从所述部分差分区域流出的故障电流的方向,其中所述第一值不等于所述第二值 值; - 比较分配给故障电流的值; 确定故障电流是否流入偏差区; 以及确定至少两个故障电流是否相对于其中一个故障电流流入部分差分区并且其中一个故障电流流出的部分差分区在不同的方向上流动 的偏差区。