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公开(公告)号：US09704664B2
公开(公告)日：2017-07-11
申请号：US14527230
申请日：2014-10-29
CPC分类号： H01H9/54 , H01H9/563 , H01H33/593 , H02H3/083 , H02H7/0455 , H02H9/002
摘要： According to one embodiment, a magnetizing inrush current suppressing device is configured to measure a three-phase alternating current flowing from the power supply bus to the load, detect a first interruption phase as a phase of an electric current which is interrupted first among the three phases, detect a phase of a phase voltage zero point through which a phase voltage of the first interruption phase of the three-phase AC voltage passes when changing from the same polarity as that of an electric current immediately before interruption of the first interruption phase to an opposite polarity, and close the circuit-breaker at a phase within 60° from the detected phase.
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公开(公告)号：US09583934B2
公开(公告)日：2017-02-28
申请号：US14164122
申请日：2014-01-24
摘要： According to one embodiment, an excitation inrush current suppression device for suppressing excitation inrush currents flowing through a breaker of the three-phase collective operation type for opening and closing connection is configured to measure a three-phase AC voltage of the power supply bus bar to calculate prospective magnetic fluxes of the transformer, and to measure a three-phase AC voltage on the transformer side to calculate residual magnetic fluxes of the transformer after shutoff, so as to set the breaker closed when polarities of the prospective magnetic fluxes respectively agree with polarities of the residual magnetic fluxes in all of the phases respectively.
摘要翻译： 根据一个实施例，用于抑制流过用于打开和关闭连接的三相集合操作类型的断路器的励磁涌流的励磁涌流抑制装置被配置为测量电源母线的三相交流电压， 计算变压器的预期磁通量，并测量变压器侧的三相交流电压，以计算关闭后变压器的剩余磁通量，以便在预期磁通量的极性分别与极性相符时将断路器闭合 的所有相的剩余磁通量。
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3.发明申请公开(公告)号：US20150377950A1
公开(公告)日：2015-12-31
申请号：US14850402
申请日：2015-09-10
发明人： Shiro Maruyama , Minoru Saito , Takashi Nakajima , Shin Hasegawa , Hiroyuki Hayata , Toshiyuki Saida
CPC分类号： G01R31/1254 , G01R31/12 , G01R31/14 , H02B13/065
摘要： A partial discharge monitoring system includes: electromagnetic wave detection sensors disposed in insulating gas enclosures being objects to be monitored, converting devices, and an interface device. The interface device includes: a detecting part detecting a zero cross point of a voltage signal synchronous with a voltage signal applied to conductors disposed in the insulating gas enclosures, and deciding a sampling timing of signals of electromagnetic waves; a transmitting part notifying the sampling timing decided by the detecting part to the converting devices; an integrating part integrating digital data which are received from the converting devices on per converting device basis; and a transmitting part transmitting the integrated digital data to a monitoring device.
摘要翻译： 局部放电监视系统包括：设置在绝缘气体外壳中的电磁波检测传感器，被监测对象，转换设备和接口设备。 接口装置包括：检测部件，检测与施加到设置在绝缘气体外壳中的导体的电压信号同步的电压信号的零交叉点，并且确定电磁波信号的采样定时; 发送部，将由检测部判定的采样定时通知给转换装置; 在每个转换装置的基础上集成从转换装置接收的数字数据的积分部分; 以及将集成数字数据发送到监视装置的发送部。
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公开(公告)号：US10018666B2
公开(公告)日：2018-07-10
申请号：US14850402
申请日：2015-09-10
发明人： Shiro Maruyama , Minoru Saito , Takashi Nakajima , Shin Hasegawa , Hiroyuki Hayata , Toshiyuki Saida
IPC分类号： G01R31/08 , G01R31/12 , G01R31/14 , H02B13/065
CPC分类号： G01R31/1254 , G01R31/12 , G01R31/14 , H02B13/065
摘要： A partial discharge monitoring system includes: electromagnetic wave detection sensors disposed in insulating gas enclosures being objects to be monitored, converting devices, and an interface device. The interface device includes: a detecting part detecting a zero cross point of a voltage signal synchronous with a voltage signal applied to conductors disposed in the insulating gas enclosures, and deciding a sampling timing of signals of electromagnetic waves; a transmitting part notifying the sampling timing decided by the detecting part to the converting devices; an integrating part integrating digital data which are received from the converting devices on per converting device basis; and a transmitting part transmitting the integrated digital data to a monitoring device.
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公开(公告)号：US09385525B2
公开(公告)日：2016-07-05
申请号：US14205090
申请日：2014-03-11
摘要： According to one embodiment, there is provided a magnetizing inrush current suppression device. A closing phase determination unit determines a phase position for suppressing the magnetizing inrush current among phase positions in which the prospective magnetic flux calculated by the prospective magnetic flux calculation unit and the residual magnetic flux calculated by the residual magnetic flux calculation unit coincide between the lines of the minimum residual magnetic flux determined by the minimum residual magnetic flux determination unit, as a closing phase position. A closing unit simultaneously closes the three phases of the circuit-breaker at the determined closing phase position.
摘要翻译： 根据一个实施例，提供了一种励磁涌流抑制装置。 关闭相位确定单元确定用于抑制由预期磁通计算单元计算出的预期磁通量和由剩余磁通计算单元计算出的剩余磁通量的相位位置之间的磁化冲击电流的相位位置， 由最小剩余磁通量确定单元确定的最小剩余磁通量作为闭合相位置。 闭合单元同时在确定的闭合相位置处闭合断路器的三相。
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6.发明授权公开(公告)号：US10074971B2
公开(公告)日：2018-09-11
申请号：US14594702
申请日：2015-01-12
CPC分类号： H02H9/002 , H01F27/34 , H01H9/56 , H01H9/563 , H01H33/593
摘要： According to one embodiment, an excitation inrush current suppressing apparatus comprising: bus voltage measurement equipment which measures each phase voltage of the single-phase AC-side bus; transformer voltage measurement equipment which measures a single-phase-side voltage of the transformer; phase detector which detects a cutoff phase when opening the circuit breaker by monitoring each phase voltage measured by the bus voltage measurement equipment and the single-phase-side voltage measured by the transformer voltage measurement equipment, holds the detected cutoff phase, and outputs the same phase as the held cutoff phase; and close command output device which closes the circuit breaker by the same voltage phase as the cutoff phase output from the phase detector.
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公开(公告)号：US09490627B2
公开(公告)日：2016-11-08
申请号：US14559307
申请日：2014-12-03
CPC分类号： H02H9/002 , H01H33/022 , H01H33/44 , H01H33/59 , H01H33/593
摘要： According to one embodiment, a magnetizing inrush current suppressing device includes, a first closing unit closes the circuit-breaker at the notable phase by the first phase determined by the first-phase determination unit, a second-phase determination unit determines a second phase at which the notable phase detected by the notable phase detection unit from the three-phase AC voltage measured by the power-supply-side voltage measurement unit becomes a zero point after the first phase determined by the first-phase determination unit, and a second closing unit closes the circuit-breaker at two phases other than the notable phase by the second phase determined by the second-phase determination unit.
摘要翻译： 根据一个实施例，一种励磁涌流抑制装置包括：第一闭合单元以明显的相位闭合由第一相位确定单元确定的第一相位的断路器，第二相位确定单元确定第二相位 其中由显着的相位检测单元从由电源侧电压测量单元测量的三相AC电压检测到的显着相位变为在由第一相位确定单元确定的第一相位之后的零点，并且第二闭合 单元将除了显着相位之外的两相的断路器以由第二相位确定单元确定的第二相位闭合断路器。
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公开(公告)号：US09425615B2
公开(公告)日：2016-08-23
申请号：US14029272
申请日：2013-09-17
CPC分类号： H02H9/045 , H01H9/563 , H01H33/593 , H02H9/001
摘要： According to one embodiment, there is provided an inrush current suppression apparatus that suppresses an inrush current generated when shunt capacitors are connected to a power system. The apparatus includes a power supply voltage measurement unit measuring a power supply voltage, a circuit breaker current measurement unit measuring a circuit breaker current, a residual voltage polarity determination unit determining the polarities of three phases of a residual voltage, a specific phase determination unit determining a specific phase, a closing phase detector detecting a closing phase, and a circuit breaker closing unit closing the circuit breaker in the closing phase.
摘要翻译： 根据一个实施例，提供了一种浪涌电流抑制装置，其抑制当并联电容器连接到电力系统时产生的浪涌电流。 该装置包括测量电源电压的电源电压测量单元，测量断路器电流的断路器电流测量单元，确定剩余电压三相极性的残余电压极性确定单元，特定相位确定单元确定 特定相位，闭合相位检测器检测闭合相位，以及在闭合相位闭合断路器的断路器闭合单元。
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9.发明申请EXCITATION INRUSH CURRENT SUPPRESSING APPARATUS AND EXCITATION INRUSH CURRENT SUPPRESSING METHOD 审中-公开激励冲击电流抑制装置和激励冲击电流抑制方法公开(公告)号：US20150124357A1
公开(公告)日：2015-05-07
申请号：US14594702
申请日：2015-01-12
CPC分类号： H02H9/002 , H01F27/34 , H01H9/56 , H01H9/563 , H01H33/593
摘要： According to one embodiment, an excitation inrush current suppressing apparatus comprising: bus voltage measurement equipment which measures each phase voltage of the single-phase AC-side bus; transformer voltage measurement equipment which measures a single-phase-side voltage of the transformer; phase detector which detects a cutoff phase when opening the circuit breaker by monitoring each phase voltage measured by the bus voltage measurement equipment and the single-phase-side voltage measured by the transformer voltage measurement equipment, holds the detected cutoff phase, and outputs the same phase as the held cutoff phase; and close command output device which closes the circuit breaker by the same voltage phase as the cutoff phase output from the phase detector.
摘要翻译： 根据一个实施例，激励涌入电流抑制装置包括：测量单相AC侧总线的每相电压的总线电压测量设备; 测量变压器单相侧电压的变压器电压测量设备; 相位检测器，通过监视由总线电压测量装置测量的各相电压和由变压器电压测量装置测量的单相侧电压来开路断路器时检测截止相位，保持检测到的截止相位，并输出相位检测器 相作为截止期; 以及闭合指令输出装置，其以与从相位检测器输出的截止相位相同的电压相位关闭断路器。
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公开(公告)号：US09502189B2
公开(公告)日：2016-11-22
申请号：US14105846
申请日：2013-12-13
摘要： According to an embodiment, when a transformer that is connected to a first power supply through a first breaker as well as to a second power supply through a second breaker is detected to be disconnected from the power supplies, a specific phase of the three phases of the first breaker is closed to suppress an excitation inrush current, based on calculated residual magnetic fluxes and a voltage of the first power supply, and thereafter, the remaining two phases are closed. Based on the calculated residual magnetic fluxes and a voltage of the second power supply, a specific phase of the three phases of the second breaker is closed to suppress an excitation inrush current, and thereafter, the remaining two phases are closed.
摘要翻译： 根据实施例，当检测到通过第一断路器连接到第一电源以及通过第二断路器连接到第二电源的变压器与电源断开时，三相的特定阶段 关闭第一断路器以基于所计算的剩余磁通量和第一电源的电压来抑制励磁浪涌电流，此后，其余两相闭合。 基于所计算出的剩余磁通量和第二电源的电压，关闭第二断路器的三相的特定相以抑制励磁浪涌电流，之后，剩下的两相闭合。
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