Schweitzer Engineering Laboratories, Inc. (SEL) has announced wide-area-measurement-based control in a transformer relay for the first time. This enhancement to the SEL-487E Transformer Protection ...

Schweitzer Engineering Laboratories has released the SEL-851 Feeder Protection Relay, which provides overcurrent, voltage and arc-flash protection for utility and industrial applications. This compact ...

SPOKANE, Wash., Sept. 28, 2004 — In conjunction with the 31st Annual Western Protective Relay Conference (WPRC) in Spokane, Washington (October 19-21), Schweitzer Engineering Laboratories, Inc. (SEL) ...

PULLMAN, WA — September 26, 2013 — Schweitzer Engineering Laboratories, Inc. (SEL) today announced the introduction of the SEL-710-5 Motor Protection Relay, which protects both synchronous and ...

Schweitzer Engineering Laboratories, Inc. (SEL) added an optional touchscreen display to the SEL-751 Feeder Protection Relay that allows users to easily navigate settings options and create custom bay ...

The 5-inch, 800-by-480-pixel color touchscreen display lets users seamlessly navigate to the various folders and application options. Users can create custom bay screens exhibiting one-line diagrams, ...

Schweitzer Engineering Laboratories, Inc. (SEL) has added an optional touchscreen display to the SEL-751 Feeder Protection Relay that allows users to easily navigate settings options and create custom ...

Abstract: The electromechanical ground protection relay 59GN commonly used in generator protection does not respond to grounds in the bottom ~5% of the stator winding. Recent experience with 4 such ...