Schweitzer Engineering Laboratory

Microgrid Control System uses layered cybersecurity hierarchy.
Agricultural & Farming Products

Microgrid Control System uses layered cybersecurity hierarchy.

Allowing seamless integration of distributed energy resources, Microgrid Control System maintains uninterrupted power to critical loads. Microgrid controller is able to respond to external data, such as real-time pricing signals and fast-changing system dynamics.Â- Priorities can be assigned to various user-defined scenarios, like economic dispatch, carbon footprint minimization, renewable...

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Optical Network brings optical networking to tight areas.
Communication Systems & Equipment

Optical Network brings optical networking to tight areas.

Designed to reduce required rack-mount space, SEL ICON cube chassis brings wide-area communications to space-constrained locations. Combination of deterministic SONET transport technology with flexible Ethernet and TDM drop interfaces provides integrated protection, data, and voice communications solution in one platform. Networks created by SEL ICON support serial data, IEEE C37.94, transfer...

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Compact Industrial Computer is built for reliability, durability.
Computer Hardware & Peripherals

Compact Industrial Computer is built for reliability, durability.

Powered by dual- and quad-core Intel® Core™ i7 CPUs, SEL-3360SÂ- is built and tested to utility substation standards and operates from -40 to +167°F without any fans or forced airflow. Features include single-level cell NAND flash, up to 16 GB ECC RAM, as well as support for 2 solid-state 2.5 in. SATA drives and RAID configurations. With...

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Power Quality Meter offers synchrophasor capability.
Test & Measurement

Power Quality Meter offers synchrophasor capability.

With synchrophasors, SEL-735 Power Quality and Revenue Meter collects real-time measurements of electrical quantities. Synchrophasor data can be used to perform wide-area control, determine stability margins, detect islanding, record system-wide disturbances, and visualize dynamic system responses. When used as phasor measurement unit, SEL-735 provides synchrophasor data for frequency, phase,...

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Satellite-Synchronized Network Clock supports IRIG-B and PTP.
Timers & Clocks

Satellite-Synchronized Network Clock supports IRIG-B and PTP.

With Model SEL-2488, users can synchronize end devices with submicrosecond accuracy using demodulated IRIG-B and/or Precision Time Protocol. Network clock can serve as PTP grandmaster clock, supporting both default profile (IEEE 1588-2008) and power system profile (IEEE C37.238). Capable of synchronizing time for up to 4 independent networks with time-stamp accuracy of 100 ns, Model SEL-2488 can...

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High-Speed Relay leverages 87L-over-Ethernet feature.
Electrical Equipment & Systems

High-Speed Relay leverages 87L-over-Ethernet feature.

SEL-411L supports data exchange over Ethernet network to provide line current differential (87L) protection for transmission lines with up to 4 terminals. High-speed transmission line differential, distance, and current protection relay provides 1- and 3-pole tripping and reclosing with synchronism check, circuit breaker monitoring, breaker failure protection, and series-compensated line...

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Phasor Measurement Unit enhances applicability via modularity.
Test & Measurement

Phasor Measurement Unit enhances applicability via modularity.

SEL-2240 Axion®, available with Phasor measurement unit (PMU), enables creation ofÂ- customized solution for specific synchrophasor application. SEL-2245-4 AC Analog Input Module measures frequency as well as voltage and current phasors for PMU applications, while SEL-2244-2 Digital Input Module communicates breaker and switch status using digital status bits in synchrophasor messages....

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Security Gateway integrates physical security capabilities.
Communication Systems & Equipment

Security Gateway integrates physical security capabilities.

In addition to promoting cybersecurity threat awareness, SEL-3622 offers security capabilities that enhance visibility and response time regarding physical tampering with field recloser and voltage regulator control cabinets. Detection capabilities cover sudden movement via embedded accelerometer, sudden changes in visible light via embedded light sensor, opening of doors via input sensor, and...

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Satellite-Synchronized Network Clock is accurate to ±40 ns.
Services

Satellite-Synchronized Network Clock is accurate to ±40 ns.

Designed for critical infrastructure and harsh environments, Model SEL-2488 receives GNSS time signals and distributes precise time via multiple output protocols, including IRIG-B and NTP. Device provides time delay compensation for antenna cables and output cables on per-port basis to further optimize time distribution accuracy. For security, clock features Syslog Ethernet standard for event...

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Motor Management Relay includes arc-flash light sensor.
Electrical Equipment & Systems

Motor Management Relay includes arc-flash light sensor.

Using standard motor thermal management, overcurrent protection, and integrated arc-flash detection, Model SEL-849 protects equipment and personnel in low- and medium-voltage motor control centers. Unit features 4 contact outputs,Â- 6 opto-isolated control inputs, EIA-232/EIA-485 port, and Ethernet 10/100 BASE-T port. With 2.8 x 5 x 6 in. form factor and current input of 0.5–128 A,...

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