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1.
公开(公告)号:US20200112262A1
公开(公告)日:2020-04-09
申请号:US16282660
申请日:2019-02-22
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor: Bruce A. Hall , Sean D. Robertson
Abstract: The present disclosure relates to power converters that convert power in different control modes based on the input voltage. For example, a power converter may include power conversion circuitry that receives electrical energy from an input at an input voltage and provides the electrical energy at an output voltage. The power converter may include control circuitry that receives a signal indicating the input voltage. The control circuitry may select a control mode from a plurality of control modes based at least in part on the input voltage. The control circuitry may control operation of the switch of the power conversion circuitry based at least in part on the control mode selected.
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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: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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5.
公开(公告)号:US10666156B2
公开(公告)日:2020-05-26
申请号:US16282660
申请日:2019-02-22
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor: Bruce A. Hall , Sean D. Robertson
Abstract: The present disclosure relates to power converters that convert power in different control modes based on the input voltage. For example, a power converter may include power conversion circuitry that receives electrical energy from an input at an input voltage and provides the electrical energy at an output voltage. The power converter may include control circuitry that receives a signal indicating the input voltage. The control circuitry may select a control mode from a plurality of control modes based at least in part on the input voltage. The control circuitry may control operation of the switch of the power conversion circuitry based at least in part on the control mode selected.
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