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
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
Remote I/O
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Schweitzer Engineering Laboratories, Inc.
Remote I/O modules transfer data from remote locations over fiber and expand the I/O of SEL relays, automation controllers, and other devices without modification to the control panel face.
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Product
Advanced Monitoring and Control System
SEL-734B
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Schweitzer Engineering Laboratories, Inc.
The SEL-734B with low-energy analog (LEA) inputs provides advanced monitoring and control capabilities for applications, such as capacitor bank control and feeder monitoring. LEA sensor compatibility allows safe, fast, and inexpensive installations. Advanced communications report data to SCADA systems and allow remote operations from a control center.
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Product
Network Management System (NMS)
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Schweitzer Engineering Laboratories, Inc.
An NMS is a software application (or set of applications) that provisions, monitors, and maintains communications networks.
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Product
Secure Access
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Schweitzer Engineering Laboratories, Inc.
Devices with secure access authenticate users, control privileges, and create audit trails.
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Product
Bay Control
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Schweitzer Engineering Laboratories, Inc.
Integrated bay control systems combine complete bay control with high-speed breaker protection, allowing you to deploy a full substation protection, control, and monitoring solution that is flexible for your application.
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Product
Motor Protection
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Schweitzer Engineering Laboratories, Inc.
Motor protection products and systems provide complete protection for all types of motor faults. They are suited for use in industrial- and commercial-scale facilities.
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Product
Remedial Action Schemes
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Schweitzer Engineering Laboratories, Inc.
SEL’s power management system for utilities uses a remedial action scheme (RAS) in a control system for large geographic regions of interconnected transmission, generation, and loads. This solution is commonly used for the wide-area monitoring, control, and integration of large wind power stations.
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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
Teleprotection
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Schweitzer Engineering Laboratories, Inc.
Teleprotection systems monitor and protect transmission lines using communications-assisted coordination between relays.
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Product
Converters
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Schweitzer Engineering Laboratories, Inc.
These products convert between various communications interface standards.
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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
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
Computers And Automation Controllers
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Schweitzer Engineering Laboratories, Inc.
SEL offers powerful, rugged computers and automation controllers designed for the most demanding utility and industrial applications.
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Product
Asset Management
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Schweitzer Engineering Laboratories, Inc.
Asset management includes centralized management of network communications devices and IED passwords.















