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
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Products
Applications
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product
Microgrids
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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Generator Protection
Schweitzer Engineering Laboratories, Inc.
Generator protection products and systems provide complete primary and backup protection for all types of generator faults. They are suited for use in utility-, industrial-, and commercial-scale power generation systems.
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Integration
Schweitzer Engineering Laboratories, Inc.
Integrate protective relay and metering information into SCADA and plant control systems through secure networking and automation devices.
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Computers And Automation Controllers
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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Advanced Monitoring and Control System
SEL-734B
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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Power Quality and Revenue Meter
SEL-735
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.
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RTD Module
SEL-2600
Schweitzer Engineering Laboratories, Inc.
Measure and transmit data from up to 12 RTDs and a single contact status located in transformers, breakers, motors, generators, or other system apparatus.
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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). 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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Field Ground Module
SEL-2664
Schweitzer Engineering Laboratories, Inc.
Add the SEL-2664 Field Ground Module to the SEL-300G or SEL-700G to protect all the critical components in your generator with one comprehensive relay. Or, add the SEL-2664 to the SEL-2664S to complete ground fault protection on both the rotor and stator.
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Annunciation
Schweitzer Engineering Laboratories, Inc.
Annunciators provide local and remote notification to improve situational awareness, efficiency, and safety.
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HMIs And Annunciators
Schweitzer Engineering Laboratories, Inc.
HMIs and annunciators improve situational awareness, efficiency, and safety by providing local indication of alarm conditions. Integrating these devices with remote I/O, relays, or real-time automation controllers eliminates duplicate I/O wiring.
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Panels And Enclosures
Schweitzer Engineering Laboratories, Inc.
SEL panels and enclosures offer advanced protection, control, automation, and communications solutions, all at varying levels of customization. Select from ship-from-stock or configure-to-order panels for expedited lead times, or partner with Engineering Services to develop your own custom panel or enclosure.
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Ethernet Switches
Schweitzer Engineering Laboratories, Inc.
Ethernet switches provide LAN connectivity in substations, large enclosures, and industrial plants.