Schweitzer Engineering Laboratories, Inc.
SEL serves the power industry worldwide through the design, manufacture, supply and support of products and services for power system protection, monitoring, control, automation, communications and metering. For more than 30 years, SEL has offered unmatched local technical support, a 10‐year, worldwide warranty and a commitment to making electric power safer, more reliable and more economical.
- 509.332.1890
- 509.332.7990
- info@selinc.com
- 2350 NE Hopkins Court
Pullman, WA 99163
United States of America
- Transmission Protection
- Industrial Protection
- Generation Operations
- Distribution Protection
- Regulatory Compliance
- Cybersecurity
- Asset Management
- Automation Operations
- Wireless Communications
- Wide-Area Networks
- Fault Indicators and Sensors
- Distribution Control
- Transmission Control
- Generation Control
- Transceivers
- Power System Automation
- Generation Protection
- Transmission Operations
- Industrial Control
- Local-Area Networks
- Layered Cybersecurity
- Control Center
- Revenue Metering
- Automation Control
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Distribution Automation
Schweitzer Engineering Laboratories, Inc.
Scalable and modular distribution automation solutions help increase system operational efficiency and reduce operating costs.
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Remedial Action Schemes
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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Software-Defined Networking
Schweitzer Engineering Laboratories, Inc.
SEL SDN is an Ethernet switch solution optimized for operational technology (OT) LANs.
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Arc-Flash Protection
Schweitzer Engineering Laboratories, Inc.
Arc-flash detection technology significantly decreases the time it takes a relay to trip in response to an arc fault, thereby reducing hazardous incident energy. Combining light-sensing technology with fast overcurrent protection provides high-speed arc-flash detection and prevents overtripping for external faults. Arc-flash protection relays work with low- and medium-voltage apparatus and easily coordinate with other devices in utility-, industrial-, and commercial-scale power systems.
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Transmission Operations
Schweitzer Engineering Laboratories, Inc.
The safe and efficient operation of transmission facilities requires that critical information be sent to SCADA and system operators. With this knowledge, they can respond quickly and appropriately to power system events.
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Configuration Software
Schweitzer Engineering Laboratories, Inc.
Optimize the configuration and management of device and system settings with SEL configuration software.
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Line Protection
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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Transceivers
Schweitzer Engineering Laboratories, Inc.
Transceivers convert between copper and fiber optics or between other communications interface standards.
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Asset Management
Schweitzer Engineering Laboratories, Inc.
Asset management includes centralized management of network communications devices and IED passwords.
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Single-Mode Fiber-Optic Transceivers
Schweitzer Engineering Laboratories, Inc.
Single-mode fiber-optic transceivers convert EIA-232 serial ports to single-mode fiber-optic ports.
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Precise Timing
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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Converters
Schweitzer Engineering Laboratories, Inc.
These products convert between various communications interface standards.
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Transformer Protection
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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Fault Locating
Schweitzer Engineering Laboratories, Inc.
The built-in fault-locating methods in SEL devices allow you to quickly identify faults, dispatch crews for repairs, and restore service faster. Traveling-wave fault-locating technology calculates the locations of temporary and permanent faults by measuring the arrival times of the naturally occurring traveling waves caused by a transmission line fault. Accurately detecting these waves requires ultra-high-resolution monitoring, and locating is accurate to within one tower span (±300 m). Impedanc...show more -
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Situational Awareness
Schweitzer Engineering Laboratories, Inc.
Increase grid insight and safety with wide-area situational awareness, real-time visualization, intelligent analytics/notifications, and renewable energy monitoring.