Schweitzer Engineering Laboratories, Inc.

Naiden K Spasov

Edmund O Schweitzer, Iii

Armando Guzman-Casillas

Kei Hao

Raymond W Rice

Timothy M Minteer

James Mobley

Eric M Sawyer

David Kenny

Johnny J Moore

Joe Baylon

The present disclosure relates to powering distributed sensors used to monitor electrical and/or environmental conditions and to powering other equipment associated with electric power systems. In one embodiment, a system may be used to mount a sensor in proximity to a reference conductor. An electric field power conversion subsystem may generate a usable electric potential from an electric field created by the electric power system and existing between the reference conductor and another conductor (e.g., another phase conductor, a ground conductor). The sensor powered by the usable electric potential may provide a measurement of a condition associated with the electric power system. A communication subsystem powered by the usable electric potential may communicate the measurement of the condition to a monitoring system.

Electric field powered devices in electric power systems

The present disclosure relates to directionality of events on line sensors for power lines. In an embodiment, a line sensor may include phase detection circuitry that detects a feature of an operating parameter of a power line prior to an occurrence of an event. The phase detection circuitry may provide a time associated with the feature. The line sensor may include sensor circuitry that sends an activation signal. The line sensor may include a controller that, upon receiving the activation signal, measures samples of the operating parameter. The line sensor may determine a relative direction of the event based on the plurality of times detected prior to the event and the measured samples of the operating parameter.

Event direction in line sensors

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Spokane, WA, United States of America

Naiden K Spasov