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
Switchgear 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 industrial- and commercial-scale facilities.
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Product
Industrial Protection
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Schweitzer Engineering Laboratories, Inc.
Industrial protection solutions provide complete protection for low- and medium-voltage systems. Using these devices helps you avoid expensive equipment damage and failure while maintaining system performance and increasing availability. They can easily coordinate with other devices in industrial- and commercial-scale petrochemical, metals and mining, and water and wastewater facilities as well as data centers, hospitals, universities, and more.
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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
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
Single-Mode Fiber-Optic Transceivers
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Schweitzer Engineering Laboratories, Inc.
Single-mode fiber-optic transceivers convert EIA-232 serial ports to single-mode fiber-optic ports.
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Product
Overhead Fault Location
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Schweitzer Engineering Laboratories, Inc.
Overhead faulted circuit indicators include easy-to-spot displays to help direct line crews to the faulted line sections—enabling faster restoration of power and improved customer uptime.
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Product
Current Differential and Overcurrent Relay
SEL-387
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Schweitzer Engineering Laboratories, Inc.
Protect and control any two-, three-, or four-winding power transformer with the SEL-387, which provides thermal and through-fault monitoring, and with SELogic Control Equations, can detect breaker failure.
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Product
Generator Relay
SEL-300G
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Schweitzer Engineering Laboratories, Inc.
Apply the SEL-300G Relay for comprehensive primary and backup generator protection.
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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
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
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
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
Layered Cybersecurity
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Schweitzer Engineering Laboratories, Inc.
Networks are protected with multiple layers of cybersecurity, including securing access and permissions, detecting malware, encrypting data, and logging events.
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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
Power Quality and Revenue Meter
SEL-735
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Schweitzer Engineering Laboratories, Inc.
The SEL-735 Power Quality and Revenue Meter passes accuracy requirements three times more stringent as the ANSI C12.20 Accuracy Class 0.2 standard. Advanced load profile trending, compatible with Itron® MV-90, DNP3, and Modbus protocols, ensures integration with practically any billing system. In addition to a full set of revenue metering features, advanced power quality monitoring will report costly system disturbances.















