Schweitzer Engineering Laboratories, Inc.
Is a manufacturer of digital products and systems for the protection, monitoring, control, and automation of electric power systems, including a factory for printed circuit boards that are crucial components for their products. The company designs and builds these systems, which are used in critical infrastructure.
- 509.332.1890
- 509.332.7990
- info@selinc.com
- 2350 NE Hopkins Court
Pullman, WA 99163
United States of America
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Product
Visualization And Analytics
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Schweitzer Engineering Laboratories, Inc.
Diagnose relay behavior during a power system fault while gaining system insight that is not possible with SCADA.
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Product
Microgrids
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Schweitzer Engineering Laboratories, Inc.
Microgrids provide energy assurance using reliable, resilient, and secure solutions for maintaining uninterrupted energy delivery. SEL solutions maintain system stability with deterministic control that operates at subcycle speeds to preserve load and generation balance while seamlessly islanding and recoupling with the bulk electric system.
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Product
Line Protection
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Schweitzer Engineering Laboratories, Inc.
SEL transmission line protection relays provide subcycle line differential and multizone distance protection for a secure, reliable, and high-speed solution. Their fault-locating capabilities allow you to efficiently dispatch line crews to quickly isolate line problems and restore service faster.
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Product
Fault Indicators and Sensors
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Schweitzer Engineering Laboratories, Inc.
This technology detects overcurrent faults on overhead and underground lines to speed up power restoration and enhance protection.
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Product
Overhead Enhanced Protection
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Schweitzer Engineering Laboratories, Inc.
These products enhance distribution protection by helping relays make better tripping and reclosing decisions based on the location of a fault.
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Product
Security Gateways
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Schweitzer Engineering Laboratories, Inc.
Security gateways combine cybersecurity capabilities to create secure access paths through security perimeters.
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Product
Stator Ground Protection Relay
SEL-2664S
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Schweitzer Engineering Laboratories, Inc.
Protect high-impedance grounded generators from ground faults at standstill, during startup, and while running with the multisine frequency injection and neutral overvoltage-based protection in the SEL-2664S.
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Product
Wide-Area Networks
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Schweitzer Engineering Laboratories, Inc.
Utility wide-area networks provide communications between the control center and substations, and between substations.
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Product
Wireless Communications
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Schweitzer Engineering Laboratories, Inc.
Wireless communications extend networks in areas where communications wires are not available or cost-prohibitive.
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Product
Ethernet Switches
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Schweitzer Engineering Laboratories, Inc.
Ethernet switches provide LAN connectivity in substations, large enclosures, and industrial plants.
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Product
Distributed I/O
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Schweitzer Engineering Laboratories, Inc.
Expand the I/O of SEL relays and communications processors, reduce copper in substations by transferring I/O from remote locations over fiber, and provide electrical isolation to avoid ground paths and induced noise and interference.
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Product
Transformer Protection
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Schweitzer Engineering Laboratories, Inc.
Transformer protection products and systems provide complete primary and backup protection for all types of transformer faults. They are suited for use in utility-, industrial-, and commercial-scale power transformer systems.
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Product
Busbar Protection
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Schweitzer Engineering Laboratories, Inc.
Bus protection products and systems provide complete primary and backup protection for all types of bus and switchgear arrangements. They are suited for use in utility-, industrial-, and commercial-scale power systems.
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Product
Power System Operations
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Schweitzer Engineering Laboratories, Inc.
Automate data collection, concentrate phasor data, and analyze data with real-time analytics.
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Product
Panels And Enclosures
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Schweitzer Engineering Laboratories, Inc.
SEL panels and enclosures offer advanced protection, control, automation, and communications solutions, all at varying levels of customization. Select from ship-from-stock or configure-to-order panels for expedited lead times, or partner with Engineering Services to develop your own custom panel or enclosure.















