公开(公告)号：US09377492B2

公开(公告)日：2016-06-28

申请号：US14311687

申请日：2014-06-23

Applicant: SCHNEIDER ELECTRIC INDUSTRIES SAS

Inventor： Francois Vincent ,  Simon Tian

IPC: G01R31/02 ,  G01R27/20

CPC classification number: G01R27/20

Abstract: The device according to the invention for estimating the impedance of an ground connection, the ground connection being connected to the ground of an alternating electric network (14) comprising a phase connected to an electric phase conductor and a neutral connected to an electric neutral conductor, comprises: an electrical component having a predetermined value impedance positioned between the phase conductor and the ground connection; a first sensor capable of measuring a first value of a first property between the phase conductor and the ground connection and a second value of the first property; a second sensor capable of measuring a first value of a second property between the neutral conductor and the ground connection and a second value of the second property; and a computation member computing the impedance of the ground connection.

Abstract translation: 根据本发明的用于估计接地连接的阻抗的装置，所述接地连接连接到交流电网（14）的地面，所述交流电网包括连接到电相导体的相和连接到电中性导体的中性点， 包括：具有位于所述相导体和所述接地连接之间的预定值阻抗的电气部件; 能够测量相导体和接地连接之间的第一属性的第一值的第一传感器和第一属性的第二值; 第二传感器，其能够测量所述中性导体和所述接地连接之间的第二特性的第一值，以及所述第二特性的第二值; 以及计算构件来计算接地连接的阻抗。

公开(公告)号：US10020153B2

公开(公告)日：2018-07-10

申请号：US14483714

申请日：2014-09-11

Applicant: SCHNEIDER ELECTRIC INDUSTRIES SAS

Inventor： Francois Vincent ,  Simon Tian

IPC: G08B21/00 ,  H01H71/12 ,  H01H71/04 ,  H01H71/46 ,  H02H3/38 ,  H02H3/08 ,  H02H3/10 ,  H02H3/24 ,  H02H5/04

CPC classification number: H01H71/125 ,  H01H71/04 ,  H01H71/462 ,  H01H2071/042 ,  H01H2071/048 ,  H02H3/08 ,  H02H3/10 ,  H02H3/24 ,  H02H3/38 ,  H02H5/041

Abstract: In this method, the voltage outage load-side is an opening of the circuit breaker, and the circuit breaker is able to interrupt the flow of electric current in an electric connection including an electric conductor. The auxiliary unit comprises a current sensor for measuring the intensity of the current flowing in the electric conductor and a first detection means for detecting the voltage outage load-side from the circuit breaker. The method comprises the following steps: measuring the intensity of the current flowing in the electric conductor, detecting the voltage outage load-side from the electric circuit breaker, determining a cause of the detected voltage outage load-side from the circuit breaker, said cause being selected from the group consisting in: an electric overload, a short-circuit and a voltage drop.

公开(公告)号：US20150077122A1

公开(公告)日：2015-03-19

申请号：US14486052

申请日：2014-09-15

Applicant: Schneider Electric Industries SAS

Inventor： Alexandre Laporte ,  Francois Vincent ,  Christian Pellegrin

IPC: G01R31/327 ,  H01H89/04

CPC classification number: G01R31/327 ,  H01H89/04 ,  H02H11/005 ,  H02H11/006

Abstract: The invention relates to a safety device (16) capable of being connected between a circuit breaker device (14) and an electric installation powered by an electric grid providing three-phase current having a first associated frequency, using a line for conveying electric current including three phase conductors (PH1, PH2, PH3), a neutral conductor (N) and a protection conductor (PE). This device makes it possible to verify at least one electric safety condition following a cut off of electric power of the electric installation by the circuit breaker device (14). This device comprises means (32) for verifying the presence of a residual voltage above a predetermined safety threshold on at least one of the conductors and means (34, 36) for verifying isolation, capable of verifying the isolation between two conductors of at least one pair of conductors, called the tested pair of conductors, among said phase conductors. The invention also relates to an associated safety verification method carried out by an associated safety device.

Abstract translation: 本发明涉及一种安全装置（16），其能够连接在断路器装置（14）和由提供具有第一相关频率的三相电流的电网供电的电力装置之间，使用用于输送电流的线路，包括 三相导体（PH1，PH2，PH3），中性导体（N）和保护导体（PE）。 该装置使得可以在断路器装置（14）断开电气装置的电力之后验证至少一个电气安全条件。 该装置包括用于在至少一个导体和用于验证隔离的装置（34,36）上验证高于预定安全阈值的残余电压的存在的装置（32），其能够验证两个导体之间的至少一个 在所述相导体中，称为被测对的导线对。 本发明还涉及由相关联的安全装置执行的相关安全验证方法。

公开(公告)号：US09673726B2

公开(公告)日：2017-06-06

申请号：US14953168

申请日：2015-11-27

Applicant: Schneider Electric Industries SAS

Inventor： Francois Vincent ,  Bruno Bordet

IPC: H01H9/00 ,  H02M7/04 ,  H02H1/06 ,  H02H3/24

CPC classification number: H02M7/04 ,  H02H1/06 ,  H02H3/24

Abstract: A capacitive power supply device for a control device of an electrical switching apparatus, including a power supply module that has two input terminals and a power supply voltage between the two terminals, and suitable for supplying a power supply current to a control member suitable for controlling the electrical switching apparatus when the power supply voltage is below a predetermined actuation threshold, the power supply module including a first capacitor connected at the input of voltage rectifying means, the control member being connected at the output of a rectifying block, wherein a second capacitor and a first switch, suitable for connecting the second capacitor based on a comparison of the power supply voltage to a capacitor switching threshold value.

公开(公告)号：US11061078B2

公开(公告)日：2021-07-13

申请号：US16190241

申请日：2018-11-14

Applicant: Schneider Electric Industries SAS

Inventor： Jean-Baptiste Bernard ,  Francois Vincent ,  Simon Tian ,  Jerome Meunier-Carus

IPC: G01R31/50 ,  G01R31/327 ,  H02H3/08 ,  G01R35/00 ,  H02H3/33 ,  H02H3/04 ,  H02H3/05 ,  G01R31/52

Abstract: A method that tests a differential protection device having a first and a second differential protection chain includes: a step of controlling the flow of a test signal for a duration smaller than a no-trip time, and steps of determining the state of the two differential protection chains after the flow of a test signal, of monitoring the conformity of the evolution of the protection chains, and of determining the state of the test. The differential protection device includes two differential protection chains and controls the flow of a test current for a duration smaller than a no-trip time. It includes modules for monitoring the evolution of the protection chains and determining the state of the test in order to control the opening of an electrical unit if the test is good. The device can be included in the electrical unit.

公开(公告)号：US09851403B2

公开(公告)日：2017-12-26

申请号：US14486052

申请日：2014-09-15

Applicant: Schneider Electric Industries SAS

Inventor： Alexandre Laporte ,  Francois Vincent ,  Christian Pellegrin

IPC: G01R31/327 ,  H01H89/04 ,  H02H11/00

CPC classification number: G01R31/327 ,  H01H89/04 ,  H02H11/005 ,  H02H11/006

Abstract: A safety device capable of being connected between a circuit breaker device and an electric installation powered by an electric grid providing three-phase current having a first associated frequency, using a line for conveying electric current including three phase conductors, a neutral conductor and a protection conductor. The safety device makes it possible to verify at least one electric safety condition following a cut off of electric power of the electric installation by the circuit breaker device. The safety device comprises circuitry or a processor configured to verify presence of a residual voltage above a predetermined safety threshold on at least one of the conductors, and verify isolation between a tested pair of conductors, among the phase conductors. The safety device can be used to perform an associated safety verification method.