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1.发明授权公开(公告)号：US11549996B1
公开(公告)日：2023-01-10
申请号：US17454172
申请日：2021-11-09
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Kei Hao , Raymond W. Rice , James Mobley
IPC: G01R31/40 , G01R31/3842 , H02H7/16
Abstract: The present disclosure relates to a capacitor bank controller that automatically determines the size of a capacitor bank using wireless current sensors. The capacitor bank controller determines a first capacitor bank size estimate using voltage and current measurements from when the capacitor bank is open and when the capacitor bank is closed a first time. The capacitor bank controller determines a second capacitor bank size estimate by using voltage measurements and current measurements from when the capacitor bank is open and when the capacitor bank is closed a second time. The capacitor bank controller determines a filtered capacitor bank size estimate based on the first capacitor bank estimate and the second capacitor bank estimate and controls operation of the capacitor bank based on the filtered capacitor bank size estimate.
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公开(公告)号：US20210109147A1
公开(公告)日：2021-04-15
申请号：US16688168
申请日：2019-11-19
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Normann Fischer , Raymond W. Rice , Ravindra P. Mulpuri , James Mobley
IPC: G01R31/02 , G01R31/3185
Abstract: The present disclosure pertains to systems and methods for monitoring and protecting an electric power system. In one embodiment, a system may comprise line-mounted wireless current transformers to measure at least one parameter of an alternating current (AC), receive a synchronization signal at which to measure the AC, and send a message comprising the measured AC. The system may also comprise an intelligent electronic device (IED) to send the synchronization signal to and receive the messages from the line-mount wireless current transformers, determine whether a high-impedance fault (HiZ) exists between the line-mounted wireless current transformers, and implement a control action based on the existence of the HiZ fault.
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公开(公告)号：US10419064B2
公开(公告)日：2019-09-17
申请号：US15940721
申请日：2018-03-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Miralem Cosic , Shankar V. Achanta , Raymond W. Rice , Chen Zhu , Bryson R. Bechtel
Abstract: Systems, methods, and apparatuses for one-way communications are disclosed. A system includes a transmitter, a first receiver, and a second receiver. A transmitter transmits one or more messages on one or more channels according to a predetermined, pseudo-random channel hopping protocol. The receivers receive said transmissions according to the order of the pseudo-random channel hopping protocol. Methods for re-syncing the one-way system in the event of a power loss or other event causing desynchronization. Default waiting channels are established for the receivers once a certain number of channel detection periods according to the one-way communication protocol result in no detected signals.
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公开(公告)号：US20240312688A1
公开(公告)日：2024-09-19
申请号：US18183710
申请日：2023-03-14
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Timothy M. Minteer , David Kenny , Johnny J. Moore , Raymond W. Rice , Benjamin T. Rowland , Lyssa W. Blood , Brett Taggart
CPC classification number: H01F27/06 , G01R21/00 , H01F27/29 , H01F38/28 , H02J50/001
Abstract: A current transformer (CT) isolation clamp is mounted to a phase conductor and includes a step-down CT transformer and a passive isolation transformer. A three-phase power-harvesting sensor system includes a plurality of CT isolation clamps mounted to phase conductors in a three-phase power system. An electronics module is connected to the CT isolation clamps. The electronics module may include a sensing circuit to determine power characteristics of the three-phase power system based on the outputs of the CT isolation clamps. The electronics module may include a communication subsystem to transmit the determined power characteristics to local or remote devices. Additionally, the electronics module may include a power harvesting circuit to harvest power to operate the sensing circuit and the communication subsystem.
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公开(公告)号：US20220116103A1
公开(公告)日：2022-04-14
申请号：US17074929
申请日：2020-10-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Miralem Cosic , Raymond W. Rice
Abstract: Systems, devices, and methods are provided for a wireless radio repeater for integration in an electric power distribution system. Such a system may include an electrical measurement device and a wireless radio repeater. The electrical measurement device may be installed on a power line of an electric power distribution system, obtain an electrical measurement of the power line of the electric power distribution system, and transmit a wireless message indicating the electrical measurement. The wireless radio repeater may receive the wireless message from the electrical measurement device and re-transmit the wireless message to a control system of the electric power distribution system or to another wireless radio repeater to assist in sending the wireless message to the control system of the electric power distribution system.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20210109138A1
公开(公告)日：2021-04-15
申请号：US16775649
申请日：2020-01-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Jeremy William Blair , Raymond W. Rice
Abstract: Systems, methods, and devices are provided to control an electrical component of an electric power distribution system with an intelligent electronic device using electrical measurements from a wireless electrical measurement device located away from the electrical component. One such system includes a capacitor bank on a lateral of an electric power distribution system, a first set of one or more wireless electrical measurement devices that obtain one or more electrical measurements of a first feeder of the electric power distribution system, and a capacitor bank controller. The capacitor bank controller may use the one or more electrical measurements of the first feeder to control the capacitor bank on the lateral.
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公开(公告)号：US20200244368A1
公开(公告)日：2020-07-30
申请号：US16851965
申请日：2020-04-17
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： David M. Rector , Raymond W. Rice , Steven Watts , Vince B. Hadley
IPC: H04B10/50 , H04B10/69 , H04B10/40 , H04B10/079 , H04B10/43 , H04B10/564 , H04J14/02
Abstract: The present disclosure pertains to systems and methods for low-power optical transceivers. In one embodiment, a low-power optical transceiver may include a microcontroller, an optical receiver, and an optical transmitter in communication with and controlled by the microcontroller. The optical receiver may include a photodetector configured to receive a first optical representation of a first signal to be received and to generate an electrical representation of the first signal. An amplifier may amplify the electrical representation of the first signal, and an output in electrical communication with the amplifier may generate an electrical output. The optical transmitter may include a laser diode configured to generate a second optical representation of a second signal to be transmitted. The microcontroller may be configured to control an output power of the laser diode.
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公开(公告)号：US20180287658A1
公开(公告)日：2018-10-04
申请号：US15940721
申请日：2018-03-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Miralem Cosic , Shankar V. Achanta , Raymond W. Rice , Chen Zhu , Bryson R. Bechtel
Abstract: Systems, methods, and apparatuses for one-way communications are disclosed. A system includes a transmitter, a first receiver, and a second receiver. A transmitter transmits one or more messages on one or more channels according to a predetermined, pseudo-random channel hopping protocol. The receivers receive said transmissions according to the order of the pseudo-random channel hopping protocol. Methods for re-syncing the one-way system in the event of a power loss or other event causing desynchronization. Default waiting channels are established for the receivers once a certain number of channel detection periods according to the one-way communication protocol result in no detected signals.
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9.发明授权公开(公告)号：US12184343B2
公开(公告)日：2024-12-31
申请号：US17450374
申请日：2021-10-08
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Miralem Cosic , Raymond W. Rice
Abstract: A wireless radio repeater includes an antenna configured to receive a message associated with an electric power delivery system. The wireless radio repeater also includes circuitry configured to receive electrical measurement data, identify a condition of the electric power delivery system based on the electrical measurement data, and cause the antenna to re-transmit the message received via the antenna in response to identifying the condition based on the electrical measurement data.
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公开(公告)号：US11614498B2
公开(公告)日：2023-03-28
申请号：US16592169
申请日：2019-10-03
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Kei Hao , Shankar V. Achanta , Raymond W. Rice
Abstract: The present disclosure relates to a wireless neutral current sensor (WNCS) for monitoring a neutral cable of a capacitor bank. The WNCS may include a power storage device that provides power to allow the WNCS to send a test signal to a capacitor bank controller (CBC) of the capacitor bank to confirm operation of the WNCS during commissioning. The WNCS may include processing and communication circuitry that, during operation, detects an electrical characteristic on the neutral cable. The processing and communication circuitry may provide a message indicating the electrical characteristic to the CBC.
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