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公开(公告)号：US20220103549A1
公开(公告)日：2022-03-31
申请号：US17037145
申请日：2020-09-29
摘要： 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.
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公开(公告)号：US10539596B2
公开(公告)日：2020-01-21
申请号：US15850988
申请日：2017-12-21
摘要： A system and method are provided to perform current sensor error compensation. The system and method involve obtaining a current measurement of a current on a circuit from a current sensor; obtaining a voltage measurement of a voltage associated with the current from a voltage sensor; determining a fundamental frequency of the voltage from the voltage measurement; and performing error compensation on the current measurement based on the determined fundamental frequency to produce a corrected current measurement. The current sensor error compensation may be performed to correct current measurements in a motor system, such as in a motor overload relay, at a low cost by using functionality already available in the system.
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公开(公告)号：US20190149067A1
公开(公告)日：2019-05-16
申请号：US15813534
申请日：2017-11-15
发明人： Kevin M. Jefferies , Benjamin W. Edwards , Matthew L. White , Alan E. Freeman , Richard Karl Weiler , Konstantin Alexander Filippenko , Julius Michael Liptak
CPC分类号： H02P1/022 , H02H7/0822 , H02H7/0852 , H02H7/0855 , H02P1/16 , H02P29/60 , H02P29/64
摘要： A method of performing temperature-based diagnostics for motor starters within a physical grouping of motor starters is performed by determining a presently expected temperature operating range for each starter based on measuring operating temperatures of the starters; measuring their current draws, and evaluating the temperature and load draw data in light of compensation values assigned for the known power ratings of the starter and the starter's physical location within the grouping. With the presently expected temperature operating range of the starter determined, and the periodic monitoring of starter temperatures, when an individual starter's temperature exceeds its expected range, a diagnostic warning will be issued for that starter and/or for the control panel itself as a guide for preventative maintenance. Alternately, the warning may be issued for an unexpected temperature rise for a given rise in current draw, or for values exceeding an expected rate of temperature change.
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公开(公告)号：US20180144881A1
公开(公告)日：2018-05-24
申请号：US15357352
申请日：2016-11-21
发明人： Kevin M. Jefferies , Benjamin W. Edwards , Matthew L. White , Alan E. Freeman , Richard Karl Weiler
CPC分类号： H01H9/563 , H01H47/22 , H01H47/32 , H01H2009/307
摘要： A simple, economically efficient, synchronized switching system for control of a three phase motor contactor utilizes only Voltage monitoring to determine zero crossings and knowledge of the sinusoidal power waveforms and operational delay period of the contactor, to synchronize operation of the contacts at low power. The phases can be serially utilized for zero crossing detection upon Close or Open commands, so as to spread the wear over each set of contacts. Expensive metal at the contact surfaces can therefore be used more efficiently. For arc energy reduction upon contact opening, knowledge of Line-Load Voltage on at least one phase can be used to derive an empirical determination of the voltage angle at opening which yields the lowest arc energy.
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公开(公告)号：US12132729B2
公开(公告)日：2024-10-29
申请号：US17037145
申请日：2020-09-29
IPC分类号： H04L41/0813 , G06Q10/20 , H04L9/40 , H04L41/08 , G06Q30/018
CPC分类号： H04L63/0876 , H04L41/0813 , H04L41/0886 , H04L63/166 , G06Q10/20 , G06Q30/0185
摘要： 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.
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公开(公告)号：US12050543B2
公开(公告)日：2024-07-30
申请号：US17718743
申请日：2022-04-12
IPC分类号： G06F13/40
CPC分类号： G06F13/4004 , G06F2213/40
摘要： A method is performed by a bus coupler of a subnetwork of one or more local subnetworks coupled to an overall network is provided, including performing a local discovery process for discovering and identifying one or more bus devices included in the subnetwork. The method further includes submitting an internet protocol (IP) address request to obtain an IP address for the bus coupler, receiving at the bus coupler the IP address of the bus coupler in response to the IP address assignment request, submitting a configuration request for configuration information associated with a device name for the bus coupler, receiving the configuration information in response to the configuration request, and configuring at least one feature of the bus coupler using the configuration information, wherein the device name is based on identifier(s) of the respective one or more bus devices obtained by the discovery process.
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公开(公告)号：US10424913B2
公开(公告)日：2019-09-24
申请号：US15848552
申请日：2017-12-20
发明人： Kevin M. Jefferies , Benjamin W. Edwards , Matthew L. White , Alan E. Freeman , Richard K. Weiler
IPC分类号： H02H7/08
摘要： 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.
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公开(公告)号：US20230325332A1
公开(公告)日：2023-10-12
申请号：US17718743
申请日：2022-04-12
IPC分类号： G06F13/40
CPC分类号： G06F13/4004 , G06F2213/40
摘要： A method is performed by a bus coupler of a subnetwork of one or more local subnetworks coupled to an overall network is provided, including performing a local discovery process for discovering and identifying one or more bus devices included in the subnetwork. The method further includes submitting an internet protocol (IP) address request to obtain an IP address for the bus coupler, receiving at the bus coupler the IP address of the bus coupler in response to the IP address assignment request, submitting a configuration request for configuration information associated with a device name for the bus coupler, receiving the configuration information in response to the configuration request, and configuring at least one feature of the bus coupler using the configuration information, wherein the device name is based on identifier(s) of the respective one or more bus devices obtained by the discovery process.
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公开(公告)号：US11451171B2
公开(公告)日：2022-09-20
申请号：US16446050
申请日：2019-06-19
发明人： Kevin M. Jefferies , Benjamin W. Edwards , Alan E. Freeman , Richard K Weiler , Matthew L. White
IPC分类号： H02P1/26
摘要： 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.
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公开(公告)号：US11353485B2
公开(公告)日：2022-06-07
申请号：US16787278
申请日：2020-02-11
发明人： Kevin M. Jefferies , Matthew L. White , Benjamin W. Edwards , Richard K. Weiler , Alan E. Freeman
摘要： A measurement module receives a defined system topology and system component characteristics information for a system. The measurement module calculates an expected system impedance for the defined system topology. The measurement module collects one or more impedance measurements using a high frequency voltage stimulus. Finally, the measurement module compares the one or more impedance measurements with the expected system impedance to determine adequacy of protective grounding of the system.
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