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
Audit Support
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Schweitzer Engineering Laboratories, Inc.
Security devices collect critical event information to simplify audit reporting.
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Product
Feeder Protection
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Schweitzer Engineering Laboratories, Inc.
Feeder protection improves the safety and reliability of your distribution feeder system by combining complete primary and backup protection with comprehensive overcurrent and arc-flash protection capabilities. These devices are suited for use in utility-, industrial-, and commercial-scale power systems.
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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
SCADA
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Schweitzer Engineering Laboratories, Inc.
SEL SCADA systems offer improved reliability and performance, streamlined access to valuable information, and expanded power system management capabilities.
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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
Generator Protection Relay
SEL-700G
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Schweitzer Engineering Laboratories, Inc.
The SEL-700G is the right solution for utility and industrial generator protection, with an autosynchronizer, flexible I/O, and advanced communications. Apply the SEL-700G for comprehensive primary and backup generator protection.
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Product
Generation Operations
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Schweitzer Engineering Laboratories, Inc.
The safe and efficient operation of generation facilities requires that critical information be sent to SCADA, plant control systems, and operators.
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Product
Threat Detection/Analysis
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Schweitzer Engineering Laboratories, Inc.
Several SEL devices have built-in malware detection or can identify nonauthorized network traffic.
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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
Fault Locating
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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). Impedance-based fault-locating technology calculates fault locations by detecting changes in line impedance as a result of a fault. Impedance-based locating is reliable and accurate to about 2 percent of a line’s total length.
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Product
Recloser Controls
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Schweitzer Engineering Laboratories, Inc.
Recloser controls provide fault location, isolation, and system restoration using protection and communications capabilities, such as Automatic Network Reconfiguration and single- and three-phase tripping. They allow you to automatically reconfigure your distribution system to isolate faults, quickly restore service, and reduce customer impact.
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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
NERC CIP
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Schweitzer Engineering Laboratories, Inc.
SEL products help utilities with data collection for NERC CIP compliance reporting.
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Product
Operational Technology (OT) Networking
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Schweitzer Engineering Laboratories, Inc.
OT networking solutions provide communications with the performance, cybersecurity, and ruggedness required for demanding operational applications.
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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.















