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
Revenue Metering
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Schweitzer Engineering Laboratories, Inc.
SEL revenue meters offer bidirectional, full four-quadrant, and high-accuracy energy metering for generation, interchange, transmission, distribution, or industrial applications. They are also scalable for your application. Combining meters with SEL software provides a complete metering data management solution that allows you to optimize your power system by trending energy usage, identifying peak demands, and helping locate power quality disturbances.
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Product
Underground Fault Location
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Schweitzer Engineering Laboratories, Inc.
Underground faulted circuit indicators identify the faulted cable section without a time-consuming re-fuse and sectionalize process. Applications include subsurface or pad-mounted transformers, switchgear, sectionalizing cabinets, junction boxes, and splices.
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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
Precise Timing
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Schweitzer Engineering Laboratories, Inc.
Precise timing is achieved using satellite clocks, which process signals from Global Navigation Satellite Systems, such as GPS, and output time to power system devices using IRIG-B, the Precision Time Protocol (PTP), and the Network Time Protocol (NTP).
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Product
Wireless Devices
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Schweitzer Engineering Laboratories, Inc.
Wireless devices use radio signals to communicate and pass data over the air, eliminating the need for traditional cabling.
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Product
Transmission Protection
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Schweitzer Engineering Laboratories, Inc.
SEL transmission protection solutions provide complete primary and backup protection from all types of faults. Using these devices helps you avoid expensive equipment damage and failure while maintaining system performance and increasing availability.
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Product
Security Devices
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Schweitzer Engineering Laboratories, Inc.
Security devices protect perimeters and secure communications within LANs.
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Product
Data Concentration And Protocol Conversion
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Schweitzer Engineering Laboratories, Inc.
Communicate and collect data from IEDs, exchange and convert data between protocols, and execute output logic for real-time control with SEL automation and communications solutions.
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Product
Automation Control
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Schweitzer Engineering Laboratories, Inc.
Monitoring and controlling substation power systems requires comprehensive solutions. SEL’s complete solutions and hardened devices help maintain system stability with deterministic control; streamline access to valuable IED data, communications processors, and field devices; and improve visualization and control with local HMIs and access to SCADA systems.
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Product
Capacitor Bank Protection
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Schweitzer Engineering Laboratories, Inc.
Capacitor bank protection products and systems provide complete primary and backup protection for all types of capacitor configurations.
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Product
Digital Secondary Systems
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Schweitzer Engineering Laboratories, Inc.
SEL digital secondary system solutions (sometimes called digital substation solutions) help protect and control substation primary equipment using digital devices in the secondary system that transmit data via fiber-optic cables. Our flexible, scalable, and economical solutions are built with rugged, field-tested hardware that can withstand harsh environments. Select from two solutions:
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Product
Current Differential Relay
SEL-587
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Schweitzer Engineering Laboratories, Inc.
The SEL-587 Current Differential/Overcurrent Relay provides protection for any two-input apparatus, such as transformers, motors, generators, and reactors. Apply it for differential and overcurrent protection and use event reports for quick post-event analysis.
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Product
Annunciation
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Schweitzer Engineering Laboratories, Inc.
Annunciators provide local and remote notification to improve situational awareness, efficiency, and safety.
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Product
Regulatory Compliance
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Schweitzer Engineering Laboratories, Inc.
SEL offers various devices and technology to assist with data collection and compliance reporting for NERC CIP and other critical National Institute of Standards and Technology (NIST)-based regulations.
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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.















