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公开(公告)号：US11108737B2
公开(公告)日：2021-08-31
申请号：US16832816
申请日：2020-03-27
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Tony J. Lee , David J. Casebolt , David E. Whitehead
Abstract: Systems and methods may maintain protection of electric power delivery systems in the event of an attack on protection and/or control features of the power system. Primary protective functions may be physically isolated from other functions in primary protection relays. Integrators may facilitate non-primary protection functions and disconnect all communication with primary protection relays in the event of an attack. Primary protection relays maintain protection functions even during the attack or unavailability of the integrators.
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公开(公告)号：US11056082B1
公开(公告)日：2021-07-06
申请号：US17035979
申请日：2020-09-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade
Abstract: The present disclosure pertains to systems and methods for generating a waterfall display to display a stream of high-speed data measurements. In one embodiment, a system may comprise a communication subsystem to receive a stream of high-speed data measurements. A waterfall generation subsystem may receive the stream of high-speed data measurements from the communication subsystem and identify a plurality of changes in the stream of high-speed data. A subset of data measurements may be selected that includes changes in the high-speed data. The changes may be highlighted through a plurality of modifications. A representation of the subset of data measurements in which changes are highlighted may be generated and presented at a rate below a perception threshold of a human operator. A waterfall display subsystem may generate a human-perceptible waterfall display to represent the stream of high-speed data measurements and the plurality of modifications.
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公开(公告)号：US20210109164A1
公开(公告)日：2021-04-15
申请号：US16796563
申请日：2020-02-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Tony J. Lee , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Lisa Gayle Nelms
IPC: G01R31/62 , H02H7/04 , H01F27/40 , G01R31/327
Abstract: The present disclosure pertains to devices, systems, and methods for monitoring an electric power system. In one embodiment, a system may detect a failure in an electric power system. The system may include a communication interface to receive a first indication related to a condition in the electric power system, and a second indication related to the condition. The system may also include a test subsystem to compare the first indication to the second indication and to determine a discrepancy between the first indication and the second indication. A diagnostic subsystem may identify the failure based on the discrepancy between the first indication and the second indication. An alert subsystem may generate an alert based on the failure.
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公开(公告)号：US10951057B1
公开(公告)日：2021-03-16
申请号：US16796567
申请日：2020-02-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Tony J. Lee , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Bruce A. Hall , Kelsey M. Loughlin , Sean D. Robertson
Abstract: Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and provides electrical operational power to electric power delivery system protective loads. The reliable power module includes a power storage device for providing operational power even upon loss of all control power sources. The power storage may be sufficient to ride through expected losses such as a time to start up backup generation. The power storage may be sufficient to power a trip coil. Thus, electric power system protection is maintained even upon loss of control power.
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公开(公告)号：US20210014196A1
公开(公告)日：2021-01-14
申请号：US16832816
申请日：2020-03-27
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Tony J. Lee , David J. Casebolt , David E. Whitehead
Abstract: Systems and methods may maintain protection of electric power delivery systems in the event of an attack on protection and/or control features of the power system. Primary protective functions may be physically isolated from other functions in primary protection relays. Integrators may facilitate non-primary protection functions and disconnect all communication with primary protection relays in the event of an attack. Primary protection relays maintain protection functions even during the attack or unavailability of the integrators.
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Patent Agency Ranking
6.发明申请Synchronous Machine Monitoring Using Time Stamped Electrical and Mechanical Data 审中-公开使用时间戳的机电数据进行同步机监控公开(公告)号：US20150331052A1
公开(公告)日：2015-11-19
申请号：US14709818
申请日：2015-05-12
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Nicholas C. Seeley , David J. Casebolt , Gregary C. Zweigle
IPC: G01R31/34
CPC classification number: G01R31/343 , G01R31/34
Abstract: Electrical power machines are monitored according to the disclosure herein using time stamped mechanical conditions and electrical conditions. The mechanical conditions may include rotational position, calculated and time stamped rotational frequency, valve position, temperature, or vibration. The time stamped electrical conditions may include electrical power system frequency, electrical power machine field data, electrical power machine terminal information such as voltage and current, and the like. Electrical and mechanical time-stamped electrical power machine data from different machines that may be local or remote from each other may be compared for monitoring the machines.
Abstract translation: 根据本文的公开内容，使用时间戳的机械条件和电气条件来监测电力机器。 机械条件可以包括旋转位置，计算的和时间标记的旋转频率，阀位置，温度或振动。 时间戳的电气条件可以包括电力系统频率，电力机场现场数据，电力机器终端信息如电压和电流等。 可以比较来自彼此本地或远程的不同机器的电气和机械时间标记的电力机器数据，以监测机器。
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公开(公告)号：US11165238B2
公开(公告)日：2021-11-02
申请号：US16788408
申请日：2020-02-12
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Lisa Gayle Nelms , Brian R. Clark
Abstract: The present disclosure pertains to systems and methods for monitoring electrical arc events in an electric power system. In one embodiment, a system may comprise an arc flash detection (AFD) unit to detect electromagnetic radiation generated by an electrical arc event, a primary protection relay to generate measurements of an electric current, and an integrator. In various embodiments, the integrator may comprise a communication port to receive the detection of the electrical arc event and the measurements of the electric current. The integrator may also comprise a processing subsystem to validate the detection of the electrical arc and generate protective actions to interrupt the flow of the current to the electrical arc event.
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公开(公告)号：US11038336B1
公开(公告)日：2021-06-15
申请号：US17170073
申请日：2021-02-08
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Sean D. Robertson , Austin Edward Wade , Bruce A. Hall
Abstract: Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and provides electrical operational power to electric power delivery system protective loads. The reliable power module includes an energy storage device for providing operational power even upon loss of all control power sources. The energy storage may be sufficient to ride through expected losses such as a time to start up backup generation. The energy storage may be sufficient to power a trip coil. Thus, electric power system protection is maintained even upon loss of control power. A discharge circuit is provided to allow an operator to de-energize an energy storage device.
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公开(公告)号：US20210167590A1
公开(公告)日：2021-06-03
申请号：US17170073
申请日：2021-02-08
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Sean D. Robertson , Austin Edward Wade , Bruce A. Hall
Abstract: Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and provides electrical operational power to electric power delivery system protective loads. The reliable power module includes an energy storage device for providing operational power even upon loss of all control power sources. The energy storage may be sufficient to ride through expected losses such as a time to start up backup generation. The energy storage may be sufficient to power a trip coil. Thus, electric power system protection is maintained even upon loss of control power. A discharge circuit is provided to allow an operator to de-energize an energy storage device.
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公开(公告)号：US10317467B2
公开(公告)日：2019-06-11
申请号：US14709818
申请日：2015-05-12
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Nicholas C. Seeley , David J. Casebolt , Gregary C. Zweigle
IPC: G01R31/34
Abstract: Electrical power machines are monitored and a loss-of-field event is determined thereof using time stamped mechanical conditions and electrical conditions. The mechanical conditions may include rotational position, calculated and time stamped rotational frequency, valve position, temperature, or vibration. The time stamped electrical conditions may include electrical power system frequency, electrical power machine field data, electrical power machine terminal information such as voltage and current, and the like. Electrical and mechanical time-stamped electrical power machine data from different machines that may be local or remote from each other may be compared for monitoring the machines.
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