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1.发明授权Direct current arc fault detector and circuit interrupter, and method of detecting an arc in a direct current power circuit 有权直流电弧故障检测器和电路断路器，以及直流电源电路中检测电弧的方法公开(公告)号：US09431816B2
公开(公告)日：2016-08-30
申请号：US13629714
申请日：2012-09-28
Applicant: EATON CORPORATION
Inventor： Kevin L. Parker , Theodore J. Miller
CPC classification number: H02H3/162 , G01R31/1272 , H02H1/0015 , H02H3/087
Abstract: A direct current arc fault detector includes a first current sensor sensing an alternating current component of current flowing in a DC power circuit; a second current sensor sensing a DC component of the current; and a bandpass filter filtering the sensed AC component. A demodulating logarithmic amplifier includes an input of the filtered AC component, and an output. An integrator or minimum detector includes an input connected to the amplifier output, and an output. A processor repetitively inputs and then resets the integrator or minimum detector output, and determines an arc when, for a predetermined time: the sensed DC component being greater than a first predetermined value, and a present value of the integrator or minimum detector output being greater than or different from a previous value of such output by more than a second predetermined value, or the present value being greater than a third predetermined value.
Abstract translation: 直流电弧故障检测器包括感测在直流电源电路中流动的电流的交流分量的第一电流传感器; 感测电流的DC分量的第二电流传感器; 以及滤波感测的AC分量的带通滤波器。 解调对数放大器包括经滤波的AC分量的输入和输出。 积分器或最小检测器包括连接到放大器输出的输入和输出。 处理器重复地输入然后复位积分器或最小检测器输出，并且在预定时间内确定电弧：当感测到的直流分量大于第一预定值时，积分器或最小检测器输出的当前值更大 大于或不同于该输出的先前值多于第二预定值，或者当前值大于第三预定值。
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公开(公告)号：US20150271909A1
公开(公告)日：2015-09-24
申请号：US14217796
申请日：2014-03-18
Applicant: Eaton Corporation
Inventor： ROBERT FREDERICK BROOKS , Theodore J. Miller
CPC classification number: H05K1/028 , G01R1/02 , G01R15/181
Abstract: A flexible circuit current measuring apparatus includes a flexible substrate member having a top side and a bottom side, a plurality of first conductive traces disposed on the top side of the flexible substrate member and spaced along a length of the flexible substrate member, and a plurality of second conductive traces disposed on the bottom side of the flexible substrate member and spaced along the length of the flexible substrate member. The first conductive traces and the second conducive traces are electrically connected to one another to form a serpentine pattern having a number of windings about and along the flexible substrate member, and the current measuring apparatus is structured to be wrapped around a conductor for measuring a current carried by the conductor.
Abstract translation: 柔性电路电流测量装置包括具有顶侧和底侧的柔性基板构件，设置在柔性基板构件的顶侧上并沿柔性基板构件的长度间隔开的多个第一导电迹线，以及多个 第二导电迹线设置在柔性基底构件的底侧上并且沿柔性基底构件的长度间隔开。 第一导电迹线和第二导电迹线彼此电连接以形成绕柔性衬底构件具有多个绕组的蛇形图案，并且电流测量装置构造成围绕导体缠绕以测量电流 由导体承担。
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公开(公告)号：US10388445B2
公开(公告)日：2019-08-20
申请号：US15386063
申请日：2016-12-21
Applicant: EATON CORPORATION
Inventor： Zhi Gao , Daniel A. Hosko , Theodore J. Miller
Abstract: A current sensing circuit for use with a Rogowski coil arranged around a conductor having a primary current includes input terminals structured to receive an output voltage of the Rogowski coil, an analog to digital converter structured to convert a differential voltage to a digital differential voltage signal, a digital integrator structured to receive the digital differential voltage signal, to implement a discrete-time transfer function that is a transform of a transfer function of an analog integrator, and to output a digital integrator output signal, and a direct current blocker filter structured to remove a direct current bias from the digital integrator output signal and to output a digital current output signal that is proportional to the primary current in the conductor.
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公开(公告)号：US10598731B2
公开(公告)日：2020-03-24
申请号：US15519936
申请日：2014-11-10
Applicant: EATON CORPORATION
Inventor： Theodore J. Miller , Lothar Jagusch
Abstract: A circuit interrupter includes a sensor structured to output a sensor signal, a control unit structured to receive an external control signal, the control unit including: a communication interface structured to receive the external control signal, and a waveform generator structured to generate a waveform equivalent to the sensor signal in response to the external control, and a signal processing circuit structured to receive and process the sensor signal or the generated waveform and to output the processed sensor signal or generated waveform to the control unit.
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公开(公告)号：US10332716B2
公开(公告)日：2019-06-25
申请号：US15405513
申请日：2017-01-13
Applicant: EATON CORPORATION
Inventor： Daniel A. Hosko , Theodore J. Miller , Zhi Gao , Randy P. Shvach
IPC: H02H3/33 , H01H71/74 , H02H1/00 , H02H3/02 , H02H1/06 , H02H3/05 , G05B15/02 , H02H3/00 , H02H3/16
Abstract: A circuit interrupter includes an electronic trip unit structured to receive power from a power supply. The electronic trip unit includes a start-up process and is structured to proceed through the start-up process when the electronic trip unit begins receiving power from the power supply and a timing circuit including a capacitor structured to begin charging when the electronic trip unit begins receiving power from the power supply. The electronic trip unit includes a processor that is structured to read a voltage across the capacitor when the start-up process has completed and to determine an elapsed time of the start-up process based on the read voltage across the capacitor.
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Patent Agency Ranking
6.发明授权Electrical switching apparatus including alternating current electronic trip circuit with arc fault detection circuit and power supply 有权电气开关装置包括具有电弧故障检测电路和电源的交流电子跳闸电路公开(公告)号：US09466968B2
公开(公告)日：2016-10-11
申请号：US14132705
申请日：2013-12-18
Applicant: EATON CORPORATION
Inventor： Xin Zhou , Theodore J. Miller , Harry J. Carlino
CPC classification number: H02H3/16 , H01H9/30 , H01H83/20 , H01H2083/201 , H02H1/0015 , H02H3/021 , H02H7/222
Abstract: An electrical switching apparatus includes a transductor circuit that senses a direct current between an input terminal and an output terminal and outputs an alternating current proportional to the direct current. The electrical switching apparatus also includes a current sensor configured to sense an alternating current component of the direct current. The electrical switching apparatus further includes an alternating current electronic trip circuit including an arc fault detection circuit configured to detect an arc fault based on the sensed alternating current component. The alternating current electronic trip circuit is also configured to control pairs of separable contacts to trip open based on the alternating current output from the transductor circuit or the detected arc fault. The electrical switching apparatus also includes a power supply structured to provide direct current power to the alternating current electronic trip circuit.
Abstract translation: 一种电气开关装置包括一个感应输入端和输出端之间的直流电的输出电路，并输出与直流成正比的交流电。 电气开关装置还包括被配置为感测直流电流的交流分量的电流传感器。 电气开关装置还包括交流电子跳闸电路，其包括电弧故障检测电路，该电弧故障检测电路被配置为基于感测到的交流分量来检测电弧故障。 交流电子跳闸电路还被配置为基于从变压器电路输出的交流电流或检测到的电弧故障来控制成对的可分离触点跳闸断开。 电气开关装置还包括被配置为向交流电子跳闸电路提供直流电力的电源。
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公开(公告)号：US10283956B2
公开(公告)日：2019-05-07
申请号：US15221101
申请日：2016-07-27
Applicant: EATON CORPORATION
Inventor： Kevin L. Parker , Theodore J. Miller
Abstract: A direct current arc fault detector includes a first current sensor sensing an alternating current component of current flowing in a DC power circuit; a second current sensor sensing a DC component of the current; and a bandpass filter filtering the sensed AC component. A demodulating logarithmic amplifier includes an input of the filtered AC component, and an output. An integrator or minimum detector includes an input connected to the amplifier output, and an output. A processor repetitively inputs and then resets the integrator or minimum detector output, and determines an arc when, for a predetermined time: the sensed DC component being greater than a first predetermined value, and a present value of the integrator or minimum detector output being greater than or different from a previous value of such output by more than a second predetermined value, or the present value being greater than a third predetermined value.
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公开(公告)号：US20190026749A1
公开(公告)日：2019-01-24
申请号：US15652540
申请日：2017-07-18
Applicant: EATON CORPORATION
Inventor： Zhi Gao , Theodore J. Miller , Timothy F. Thompson , Randy P. Shvach , Daniel A. Hosko
Abstract: A security tag and electronic system detect unauthorized tampering of Molded Case Circuit Breakers (MCCBs) and authenticate MCCBs against counterfeiting or gray market items. The system can involve digital generation of a public key and a corresponding private key, both keys comprise large positive integers, applying the private key to an MCCB-specific message string and creating a digital signature code, generating an identification code from the MCCB-specific message string and the digital signature code, building the identification code into one or more security tags, and installing the security tags on MCCBs, and authenticating MCCBs through a verification step and a certification step. The verification step reads the security tags, and verifies the identification code. The certification step checks the identification code against a revocation list that contains previously compromised identification codes.
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公开(公告)号：US10014679B2
公开(公告)日：2018-07-03
申请号：US15261297
申请日：2016-09-09
Applicant: EATON CORPORATION
Inventor： Xin Zhou , Theodore J. Miller , Harry J. Carlino
CPC classification number: H02H3/16 , H01H9/30 , H01H83/20 , H01H2083/201 , H02H1/0015 , H02H3/021 , H02H7/222
Abstract: An electrical switching apparatus includes a transductor circuit that senses a direct current between an input terminal and an output terminal and outputs an alternating current proportional to the direct current. The electrical switching apparatus also includes a current sensor configured to sense an alternating current component of the direct current. The electrical switching apparatus further includes an alternating current electronic trip circuit including an arc fault detection circuit configured to detect an arc fault based on the sensed alternating current component. The alternating current electronic trip circuit is also configured to control pairs of separable contacts to trip open based on the alternating current output from the transductor circuit or the detected arc fault. The electrical switching apparatus also includes a power supply structured to provide direct current power to the alternating current electronic trip circuit.
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公开(公告)号：US09408298B2
公开(公告)日：2016-08-02
申请号：US14217796
申请日：2014-03-18
Applicant: EATON CORPORATION
Inventor： Robert Frederick Brooks , Theodore J. Miller
CPC classification number: H05K1/028 , G01R1/02 , G01R15/181
Abstract: A flexible circuit current measuring apparatus includes a flexible substrate member having a top side and a bottom side, a plurality of first conductive traces disposed on the top side of the flexible substrate member and spaced along a length of the flexible substrate member, and a plurality of second conductive traces disposed on the bottom side of the flexible substrate member and spaced along the length of the flexible substrate member. The first conductive traces and the second conducive traces are electrically connected to one another to form a serpentine pattern having a number of windings about and along the flexible substrate member, and the current measuring apparatus is structured to be wrapped around a conductor for measuring a current carried by the conductor.
Abstract translation: 柔性电路电流测量装置包括具有顶侧和底侧的柔性基板构件，设置在柔性基板构件的顶侧上并沿柔性基板构件的长度间隔开的多个第一导电迹线，以及多个 第二导电迹线设置在柔性基底构件的底侧上并且沿柔性基底构件的长度间隔开。 第一导电迹线和第二导电迹线彼此电连接以形成绕柔性衬底构件具有多个绕组的蛇形图案，并且电流测量装置构造成围绕导体缠绕以测量电流 由导体承担。
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