Schweitzer Engineering Laboratories, Inc.

Sean D Robertson

Bruce A Hall

Edmund O Schweitzer, Iii

David E Whitehead

Krishnanjan Gubba Ravikumar

Austin Edward Wade

David J Casebolt

Tony J Lee

Kelsey M Loughlin

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.

Redundant power module and discharge circuit for improved substation device availability

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.

Reliable power module for improved substation device availability

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.

Method to dynamically configure and control a power converter for wide input range operation

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Moscow, ID, United States of America

Sean D Robertson