公开(公告)号：US20240177958A1

公开(公告)日：2024-05-30

申请号：US18071022

申请日：2022-11-29

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Daniel A. Hosko ,  John E. Downs ,  Brian J. Schaltenbrand ,  Paul Richard Rakus

IPC: H01H71/04 ,  H01H13/12 ,  H02H3/04

CPC classification number: H01H71/04 ,  H01H13/12 ,  H02H3/044 ,  H01H2071/044 ,  H02H3/335

Abstract: A diagnostic system for monitoring a mechanical trip mechanism of a circuit interrupter provides advanced diagnostics. The trip mechanism comprises a D-shaft that is actuated by the trip unit, an operating mechanism that is actuated by the D-shaft, and a pole shaft that is actuated by the operating mechanism to physically separate the separable contacts. During every opening operation, the diagnostic system determines how much time elapses between the D-shaft beginning to move to its open position and the pole shaft reaching its open position, in order to detect degradation of the trip mechanism as early as possible. This ensures that suboptimal performance is detected even if the trip mechanism is meeting the minimum requirements for acceptable performance. A user is notified once the performance has degraded to a level that is considered concerning before the trip mechanism fails altogether, saving significant time and resources and preventing more widespread damage.

公开(公告)号：US11831139B2

公开(公告)日：2023-11-28

申请号：US17826260

申请日：2022-05-27

Applicant: Leviton Manufacturing Co., Inc.

Inventor： Michael Ostrovsky

IPC: H02H1/00 ,  H02H3/04 ,  H02H3/33 ,  H02H3/20

CPC classification number: H02H1/0015 ,  H02H3/044 ,  H02H3/20 ,  H02H3/335 ,  H02H3/338

Abstract: Circuit interrupting devices are provided. One circuit interrupting device includes a fault sensor configured to output a sensor signal; a voltage sensor configured to sense a reference voltage; and a controller configured to determine an occurrence of an actual fault based on the sensor signal and the reference voltage. The circuit interrupting device further includes an amplifier configured to receive the sensor signal and the reference voltage and output an amplified signal; an analog-to-digital converter configured to receive the reference voltage and the amplified signal and output respective digital signals corresponding to the reference voltage and the amplified signal; and a line interrupt assembly configured to interrupt current flow through a conductive path when a characteristic of the sensor signal exceeds an actual fault threshold.

公开(公告)号：US11747392B2

公开(公告)日：2023-09-05

申请号：US17331083

申请日：2021-05-26

Applicant: Hubbell Incorporated

Inventor： Thomas James Batko ,  Joseph Vincent DeBartolo

IPC: G01R31/28 ,  H01H83/04 ,  G01R31/50 ,  H02H3/33 ,  H01H71/04 ,  H02H3/04 ,  G01R31/52 ,  H02H3/16

CPC classification number: G01R31/2827 ,  G01R31/50 ,  G01R31/52 ,  H01H71/04 ,  H01H83/04 ,  H02H3/044 ,  H02H3/162 ,  H02H3/335 ,  H01H2071/044 ,  H01H2300/052

Abstract: A circuit interrupting device including one or more line terminals for connecting to an external power supply, one or more load terminals for connecting to an external load, one or more contacts electrically connecting one or more line terminals to one or more load terminals, and an auto-monitoring circuit. The auto-monitoring circuit configured to monitor one or more signals to determine an operating state of said circuit interrupting device, output a first signal having a first voltage level based on the operating state, wherein the first voltage level is greater than zero volts, and output a second signal having a second voltage level based on the operating state, wherein the second voltage level is greater than the first voltage level.

公开(公告)号：US11664651B2

公开(公告)日：2023-05-30

申请号：US17552831

申请日：2021-12-16

Applicant: Hubbell Incorporated

Inventor： Thomas James Batko ,  Joseph Michael Meady

IPC: H02H3/00 ,  H02H3/16 ,  H02H3/33 ,  H02H3/04 ,  H02H3/46 ,  H02H3/07

CPC classification number: H02H3/16 ,  H02H3/04 ,  H02H3/044 ,  H02H3/07 ,  H02H3/162 ,  H02H3/334 ,  H02H3/335 ,  H02H3/46

Abstract: A wiring device including an interrupting device and a controller. The interrupting device electrically connects one or more line terminals to one or more load terminals when the interrupting device is in a reset condition and disconnects the line terminals from the load terminals when the interrupting device is in a tripped condition. The controller is configured to, determine a frequency of an input voltage at the one or more line terminals, determine whether the frequency is within a predetermined range, and when the frequency is within the predetermined range, perform a test of the wiring device.

公开(公告)号：US20190190247A1

公开(公告)日：2019-06-20

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: H02H3/08 ,  G01R31/327

CPC classification number: H02H3/083 ,  G01R31/327 ,  G01R31/3278 ,  H02H3/044 ,  H02H3/05 ,  H02H3/33 ,  H02H3/334 ,  H02H3/335

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：US20180278040A1

公开(公告)日：2018-09-27

申请号：US15926339

申请日：2018-03-20

Applicant: Shanghai Fudan Microelectronics Group Company Limited

Inventor： Shusen Hao ,  Yang Liu ,  Xueqiu Yu

IPC: H02H3/04 ,  H02H3/16

CPC classification number: H02H3/044 ,  H02H1/0007 ,  H02H3/162 ,  H02H3/335

Abstract: A ground fault protection system is provided. A ground fault protection device includes a current transformer module, a detection coil module and a ground fault circuit interrupter, wherein the current transformer module includes a current transformer, the detection coil module includes a detection coil, a hot and neutral penetrate through the current transformer and the detection coil, the current transformer module outputs a mutual inductance current, when the current transformer and the detection coil form mutual inductance and form a current path with the ground fault circuit interrupter, the ground fault circuit interrupter outputs a disconnection control signal to disconnect connection of the hot and neutral with a load based on the mutual inductance current, and a detection circuit includes a signal generation module which outputs a test signal including at least one pulse signal in one cycle of an AC signal.

公开(公告)号：US20180149682A1

公开(公告)日：2018-05-31

申请号：US15579486

申请日：2016-07-07

Applicant: Omicron electronics GmbH

Inventor： Ulrich Klapper ,  Steffen Kaiser

IPC: G01R21/06 ,  H02H3/04 ,  G01R35/02 ,  G01R31/327 ,  G01R31/04 ,  G01R19/25 ,  G01R19/14

CPC classification number: G01R21/06 ,  G01R19/14 ,  G01R19/2513 ,  G01R31/041 ,  G01R31/3277 ,  G01R35/02 ,  H02H3/044

Abstract: The invention relates to an apparatus (30) of an energy system which has inputs (39) that can be connected in a conductive manner to at least one current transformer (20, 28, 29) and at least one voltage transformer (10, 18, 19). A testing device (40) is designed to apply a first test signal (71) to a secondary side of a voltage transformer (10) and, at the same, to apply a second test signal to a primary side of a current transformer (20).

公开(公告)号：US09876344B2

公开(公告)日：2018-01-23

申请号：US14729325

申请日：2015-06-03

Applicant: Siemens Industry, Inc.

Inventor： Joselito Endozo ,  Hugh T. Kinsel

IPC: H02H3/16 ,  H02H3/04 ,  H01H9/54 ,  H01H69/00 ,  H01H83/02

CPC classification number: H02H3/16 ,  H01H9/54 ,  H01H69/00 ,  H01H83/02 ,  H02H3/044

Abstract: An electronic circuit breaker may include a monitoring circuit configured to monitor and respond to a power supply and/or detection circuit failure within the electronic circuit breaker. In some embodiments, the monitoring circuit may monitor a regulated DC voltage provided by the detection circuit within the electronic circuit breaker. A response to a power supply and/or detection circuit failure may include interrupting current flow between an electrical power source and an electrical circuit protected by the electronic circuit breaker. Methods of monitoring and responding to a power supply and/or detection circuit failure within an electronic circuit breaker are also provided, as are other aspects.

公开(公告)号：US20170373681A1

公开(公告)日：2017-12-28

申请号：US15628588

申请日：2017-06-20

Applicant: James William Masten, JR.

Inventor： James William Masten, JR.

IPC: H03K17/13 ,  G01R31/02 ,  G01R19/165 ,  H02H3/08 ,  H02H1/00

CPC classification number: H03K17/136 ,  G01R19/165 ,  G01R31/025 ,  G01R31/3278 ,  H02H1/0007 ,  H02H1/0015 ,  H02H3/044 ,  H02H3/08 ,  H02H3/33

Abstract: The Robust Safe Switch and Control Device is an “Internet of Things” end effecter that provides a minimally dissipating, robust switch tightly integrated with circuit, life and property automated safety features. The device enables extended sensing and monitoring capabilities that enable the effective management of the “Internet of Things.”

公开(公告)号：US09829539B2

公开(公告)日：2017-11-28

申请号：US14739269

申请日：2015-06-15

Applicant: EATON CORPORATION

Inventor： Victor Doualla Epee

IPC: G01R31/02 ,  G01R31/14 ,  H02H3/00 ,  H01H73/00 ,  G01R31/327 ,  H02H3/16 ,  H02H3/04 ,  H02H3/33

CPC classification number: G01R31/3277 ,  H02H3/044 ,  H02H3/16 ,  H02H3/335

Abstract: A ground fault circuit interrupter (GFCI) including separable contacts, a ground fault detection circuit structured to detect a ground fault based and to output a trip signal in response to detecting the ground fault, a trip circuit structured to trip open the separable contacts in response to the trip signal, a test button structured to be actuated by a user, a test unit structured to sequentially perform a GFCI self-test sequence and a ground fault test sequence in response to actuation of the test button, wherein the test unit is structured to determine whether the GFCI passed the GFCI self-test sequence and to output in an alarm signal in response to determining that the GFCI failed the GFCI self-test sequence, and an indicator structured to receive the alarm signal and to provide a visual or audible indication in response to receiving the alarm signal.