公开(公告)号：US11646681B2

公开(公告)日：2023-05-09

申请号：US17892432

申请日：2022-08-22

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Alan E. Freeman ,  Richard K Weiler ,  Matthew L. White

IPC: H02P1/26

CPC classification number: H02P1/26

Abstract: Techniques for monitoring the health of a three-phase induction motor are provided. An expected threshold value is calculated as a function of an expected ratio of current unbalance to voltage unbalance for the three-phase motor. Embodiments determine whether a measured current unbalance exceeds the expected threshold value. Responsive to the measured current unbalance exceeding the expected threshold value, a remedial action may be taken, such as generating diagnostic information or activating one or more protection operations for the three-phase induction motor.

公开(公告)号：US11333690B2

公开(公告)日：2022-05-17

申请号：US16715573

申请日：2019-12-16

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Richard K. Weiler ,  Alan E. Freeman

IPC: G01R19/25

Abstract: A measurement module uses harmonic compensation factors to minimize the effects of harmonic distortion in measurements of a source current by a current sensor of the module. The module samples at a first sampling rate, measurements of the source current to generate a first current measurement. The module samples at a second sampling rate higher than the first sampling rate, for an interval of time, measurements of the source current to generate a second current measurement. The module determines a harmonic compensation factor based, at least, on a difference between the first current measurement and the second current measurement. The module determines a reported current computed as a function of at least the first current measurement, the difference between the first current measurement and the second current measurement, and the harmonic compensation factor. The reported current represents a magnitude of the source current adjusted by the harmonic compensation factor.

公开(公告)号：US20210135942A1

公开(公告)日：2021-05-06

申请号：US16674553

申请日：2019-11-05

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Matthew L. White ,  Alan E. Freeman ,  Richard Karl Weiler

IPC: H04L12/24 ,  H04L29/12

Abstract: Techniques for automatically configuring a computing device in a computing environment are provided. One embodiment includes determining that the computing device has been added to a computing environment and that at least one feature of the computing device is unconfigured. Device name data specifying at least two potential device identifiers for the computing device is received from a plurality of endpoint devices communicatively coupled to the computing device. A first device identifier is selected from the at least two potential device identifiers and device configuration data associated with the first device identifier is requested from a device configuration server. The at least one feature of the computing device can then be configured using the device configuration data.

公开(公告)号：US09975443B2

公开(公告)日：2018-05-22

申请号：US14898885

申请日：2013-06-24

Applicant: SCHNEIDER ELECTRIC USA, INC.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Matthew L. White ,  Konstantin A. Filippenko ,  Richard K. Weiler

IPC: B60L11/18 ,  H01H3/16 ,  H02G3/04 ,  H02G11/02

CPC classification number: B60L11/1825 ,  B60L11/1816 ,  B60L11/1818 ,  B60L2230/12 ,  H01H3/16 ,  H02G3/0493 ,  H02G11/02 ,  Y02T10/7005 ,  Y02T10/7094 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14

Abstract: A cable reel assembly in an electric vehicle supply equipment (EVSE) having a reel around which a cable is coiled. A shaft supporting the reel bears discs that rotate with the reel, and calipers coupled to the discs stop them and the reel from rotating. The power L1 and L2 conductors in the cable are electrically connected to the discs, and the calipers are electrically connected to the power source for the EVSE so that the calipers provide mechanical and electrical connection when actuated. Optionally, slip rings coupled to the shaft are connected to the control pilot and proximity signal conductors in the cable. Thus, during cable re traction, the control pilot and proximity signals are still provided to the EVSE, but the power conductors are decoupled from the power source. Only when the calipers are actuated to brake the discs is current flow permitted.

公开(公告)号：US20180090291A1

公开(公告)日：2018-03-29

申请号：US15279629

申请日：2016-09-29

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Matthew L. White ,  Alan E. Freeman ,  Richard Karl Weiler

IPC: H01H51/26 ,  H01H51/22

CPC classification number: H01H50/546 ,  H01H1/54 ,  H01H3/222 ,  H01H5/02 ,  H01H5/06

Abstract: In an electromagnetically controlled actuator of an electrical contactor, switching is done by the actuator with a set of fixed contacts and a set of movable contacts. The movable contacts are carried on a movable contact carrier. The movable contact carrier is coupled to and driven by an armature surrounded by a coil. The armature carries a coupling shaft, and the coupling shaft carries at least part of a bistable coupling mechanism which joins the armature to the movable contact carrier and allows the movable contact carrier and armature to keep the fixed and movable contacts separated when a short circuit current creates a contact welding situation.

公开(公告)号：US20170179854A1

公开(公告)日：2017-06-22

申请号：US14976191

申请日：2015-12-21

Applicant: SCHNEIDER ELECTRIC USA, INC.

Inventor： Alan E. Freeman ,  Kevin M. Jefferies ,  Benjamin W. Edwards ,  Matthew L. White ,  Konstantin Alexander Filippenko ,  Richard Karl Weiler

IPC: H02P1/56 ,  H05B37/02 ,  H02P1/58

Abstract: A load starting system in which an upstream controller determines the sequence and timing for starting a group of loads in the most efficient and timely manner. The sequence and timing is determined by one or more real-time operational characteristics, device rating characteristics, customer/user characteristics or learned/historic characteristics or by a combination of the one or more real-time, device rating, customer/user or learned/historic characteristic.

公开(公告)号：US12132729B2

公开(公告)日：2024-10-29

申请号：US17037145

申请日：2020-09-29

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Matthew L. White ,  Richard K. Weiler ,  Alan E. Freeman

IPC: H04L41/0813 ,  G06Q10/20 ,  H04L9/40 ,  H04L41/08 ,  G06Q30/018

CPC classification number: H04L63/0876 ,  H04L41/0813 ,  H04L41/0886 ,  H04L63/166 ,  G06Q10/20 ,  G06Q30/0185

Abstract: A computer-implemented method is provided to automatically adjust a device setting of a plurality of networked devices. The method includes performing autonomously at a device of the plurality of networked devices, receiving a request to update a device setting to a new value, comparing a characteristic of the plurality of networked devices to a corresponding characteristic of the device, determining one or more similar devices of the plurality of devices that satisfy a similarity criteria based on a result of the comparison, and accessing the one or more similar devices to change the device setting of the one or more similar devices to the new value.

公开(公告)号：US11366142B2

公开(公告)日：2022-06-21

申请号：US16692089

申请日：2019-11-22

Applicant: Schneider Electric USA, Inc.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Richard K. Weiler ,  Alan Freeman ,  Konstantin Filippenko

IPC: G01R19/25

Abstract: A measurement module receives crosstalk compensation factors that include distance factors based on respective distances of a current sensor of the module from respective current sensors of other measurement modules and phase difference factors based on respective differences between the phase of a source current measured by the module and respective phases of source currents measured by the other modules. The module monitors messages reporting current measurements transmitted from the other modules connected to a broadcast bus, of current measurements made by respective current sensors of the other modules measuring other respective source currents. The module determines a reported current that is computed as a function of current measurement by the module's current sensor, reported current measurements monitored from the other modules, and the received crosstalk compensation factors. The module transmits the determined reported current over the broadcast bus to the other modules and a central controller.

公开(公告)号：US10424913B2

公开(公告)日：2019-09-24

申请号：US15848552

申请日：2017-12-20

Applicant: SCHNEIDER ELECTRIC USA, INC.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards ,  Matthew L. White ,  Alan E. Freeman ,  Richard K. Weiler

IPC: H02H7/08

Abstract: In accordance with an example embodiment of the invention, in an overload relay for a three-phase motor, an adjusted threshold for detected current phase unbalance is dynamically determined at which the relay will be tripped. The adjusted threshold is a function of a ratio of an average of currents in the three-phases to the rated full load current of the motor, i.e., motor load. As the motor load decreases, the adjusted current phase unbalance threshold is increased, causing the resulting trip time to increase, thereby increasing motor run time and reducing downtime.

公开(公告)号：US20190121311A1

公开(公告)日：2019-04-25

申请号：US15790562

申请日：2017-10-23

Applicant: SCHNEIDER ELECTRIC USA, INC.

Inventor： Kevin M. Jefferies ,  Benjamin W. Edwards

IPC: G05B19/05 ,  G06F3/06 ,  G06F1/20

CPC classification number: G05B19/05 ,  G05B2219/25368 ,  G06F1/206 ,  G06F3/0625 ,  G06F3/0634 ,  G06F3/065 ,  G06F3/0679 ,  H02H3/006 ,  H02H6/005 ,  H02P1/02 ,  H02P1/029

Abstract: The overload relay units within a motor control group have the timing function for their motor thermal memories under the control of a central controller in communication with the overload relays. Thus expensive timing components and control of timestamps can be removed from individual overload relays. Further reduction of individual overload relay components can be accomplished by removing the nonvolatile memory function from the individual overload relays and allowing the central controller to perform the nonvolatile memory functions for the overload relays. The motor thermal model function for the overload relays can remain in the overload relays or might be moved to the central controller if communication bandwidth permits.