Schweitzer Engineering Laboratories - SEL designs, manufactures, supplies, and supports products and services for power system protection, monitoring, control, automation, and metering.

Newton Evans Research Study - Ranked #1 by North American electric utilities in every category since 1999

Smart Grid - SEL smart grid solutions use information, computation, and communications to improve reliability and efficiency to meet customer needs. The technology you use today from SEL protection, communications, sensing, monitoring, security, and control all make your grid smarter. Electric power utilities around the world apply field-proven SEL solutions to automatically and rapidly isolate faults, restore power, monitor demand, and maintain and restore stability for more reliable electric power.

Protective Relaying - SEL revolutionized the protection industry by building the first microprocessor-based protective relays. These relays integrated, economized, and simplified the art of transmission line protection while introducing two powerful tools: fault locating and event reporting.

Automation & Control - RTU's, Sonet & Ethernet Multiplexors, Cyber Security Appliances, Rugged Computers, Communications Gateways and a vast array of other automation devices

Distribution Automation - SEL's complete DNA technology combines fast protection with flexible automation and communications for a customized distribution automation solution that makes your system safer, more reliable, and more economical. SEL DNA systems range from distributed intelligent devices and sensors to wide area centralized controls. These fast and efficient systems automate all parts of the distribution grid, from neighborhoods to distributed generation sites, and improve efficiency by simplifying conservation voltage reduction schemes. SEL has the answers today for the energy needs of tomorrow.

Engineering Services - SEL provides cost-effective engineering, procurement, and construction (EPC) capabilities and delivers complete turnkey solutions worldwide. SEL brings factory-trained and industry-experienced engineers to every project for the best possible solution. SEL fills a growing need in the electric power industry, as companies deal with the impacts of smaller engineering staffs and increasingly complex protection requirements.

Panels, Custom Enclosures, and Turn Key Control Houses - SEL enclosures and panels are completely engineered to meet the needs of generation, transmission, distribution, and industrial applications. SEL designs, manufactures, distributes, and innovates turnkey solutions with the highest quality and reliability.

Fault Indicators & Sensors - The Fault Indicator and Sensor Division designs and manufactures fault indicators and sensors, supplying utilities around the world with products that help reduce fault-finding time so that power can be restored quickly after a fault occurs. In business since 1950, this division of SEL is the electric power industry's leader in fault indicator technology, producing the widest variety of fault indicator products.

Quality, Support, and Warranty - SEL provides personalized service and ongoing technical support that our customers consistently rank best in the industry. The SEL ten-year, worldwide product warranty is proof of the confidence we have in the quality of products we manufacture while following the strictest industry standards.

Grid 20/20 - The OptaNODE™ Distribution Transformer Monitoring Solution features high-accuracy patented sensors and smart analytics software. These two key components, combined with flexible communication options and ease of installation, offer an integral distribution management solution to utilities. The OptaNODE™ solution provides detailed information about the distribution network allowing for the optimization of distribution efficiencies and improving distribution automation.

Tavrida Electric - Manufactures low & medium voltage circuit breakers, reclosers, and retrofit solutions for a wide array of industry in North America.

Circuit Breakers - Tavrida ISM-LD series are the most compact 5, 15 and 27 kV breakers available on the market today. Equally suited to either new switchgear or retrofit applications, these breakers take reliability to a new level with up to 150,000 close open operations. The single-axis design of the LD series allows them to be installed in any orientation, greatly simplifying complex switchgear builds.

Draw Out Breakers - Utilizing state-of-the-art Tavrida magnetic actuator driven circuit breakers, the Draw-Out Breaker is an extremely compact draw-out unit with few moving parts. With the breaker actuators driven electrically through the advanced CM_15_1 control module, the Draw-Out Breaker is also maintenance free for its entire 25 year lifespan.

Reclosers - Tavrida has combined their innovative vacuum circuit breaker technology with the SEL 651R control that is unrivalled in reliability and ease of control. Available in both 15 and 27 kV, the OSM series are easily the most lightweight and compact reclosers available on the market.

HICO America - with headquarters in Pittsburgh Pennsylvania, is part of the HICO division of the Hyosung Corporation. HICO is an ISO 9001 and 14001 certified company, with primary business in power system products. HICO has been manufacturing power transformers since 1969, when it began a technical relationship with Westinghouse Corporation which lasted until the 1990's.

Transformers - HICO offers medium and large power transformers, both core and shell form technology, up to 765kV 2050kV BIL, 2,200MVA capacity, as well as large power shunt reactors.

Breakers - HICO has also manufactured SF6 power circuit breakers and Gas Insulated Switchgear since the 1970's, up to 800kV.

GIS - Having supplied over 5,000 GIS and breaker installations, and 4,500 power transformers worldwide, HICO is a world leader in technology and quality in the power equipment industry.

Domestically, HICO America maintains a strong reputation for customer service and quality. With engineering, services, logistics, project management and sales teams working together in Pittsburgh and Los Angeles, as well as at our factory in ChangWon,South Korea, we continue to delight our customers with our immediate responsiveness & world class quality.

Delta Star Connector Co. - High quality manufacturer of bolted / welded power connectors, bus supports, EHV connectors & supports, spool type cable support systems, and custom solutions.

Quality & Longevity - Delta Star Connector Co. has been producing high quality products for over 100 years.

Custom Solutions - Custom connectors, bus, parts etc. There are few limitation of what we can provide.

Design & Support Services - From design plan to material supply, we are your complete solution provider; Layout checks, material take-off's, product supply - have us quote your entire substation.

Oldcastle precast - Provides TrueFire Walls and Cable Trench for Electric Substations.

Oldcastle Precast is committed to providing their customers with the most effective high temperature and long duration fire containment walls. TruFireWalls have sufficient impact resistance to survive shrapnel inpingement and are capable of stopping a 44 Magnum ballistic projectile with no through penetration, which is equivalent to UL Standard 752 rating. Surpassed both the required 4 hour fire exposure test and the 45 psi water jet blast test at 1,960 degrees F.

Plastibeton Cable Trench (PBCS)
The Plastibeton Cable Trench Channel System is utilized by power, utility, railroad and transit companies throughout North America to contain, protect and allow easy access to power, control, signal, communication, and fiber optic cables. Made of a unique, patented High Density Polymer Concrete, the cable trench system offers flexibility and strength, as well as exceptional resistance to freeze/thaw conditions.

Omicron - OMICRON serves the electrical power industry with testing and diagnostics instruments for primary and secondary equipment. Customers in more than 140 countries rely on OMICRON because of its outstanding spirit of innovation and products of excellent quality.

Secondary Testing & Calibration - OMICRON secondary injection test sets and measurement devices are the right choice for Utilities, Industry and Railway as well as for Relay and Measurement Device Manufacturers. The combination of a robust, truly portable, reliable and accurate Hardware design together with the unrivaled Test Universe Software is the basis for OMICRON's ongoing success in maintaining its place as World Leader in the 3-Phase secondary injection test set market.

Primary Testing & Diagnosis - Typical customers of our products for primary testing, are engineers and technicians working mainly in commissioning, maintenance testing, and test fields of Current transformers, Voltage transformers, Power transformers, Circuit breakers, Rotating Machines, and Cable Systems ( including HV and EHV cables) in utilities and industry. Our test equipment is also used for automated measuring of resistances (contact resistances, winding resistances, grounding resistances, cable impedances), but also for single-phase testing of primary and secondary protective relays

Testing With Communication Protocols - The application of communication protocols is rapidly spreading in the electric power industry. More and more applications in the substation utilize newest communication technologies for exchanging even mission critical information. OMICRON's testing tools support engineers and technicians to master these new technologies.

OMICRON Youtube Channel -

EDM Avistar - As the product division of EDM International, Avistar brings cutting edge technology to the electric utility industry. With our state-of-the-art AP30 PhaseTrakker phase identification tools, Span Sentry dynamic line rating system, our commitment to reliability and innovation is our benchmark. We work closely with electric utilities and contractors to assist with optimizing power flow and system longevity.

Royal Switchgear - Substation and Transmission group-operated disconnect switches, substation and distribution hookstick disconnects, and substation connectors.

Elgin Power Solutions - Is composed of Gilbert Electrical Systems and Mining Controls, Inc. Specializing in the design and manufacture of electrical products for surface and underground applications, including mobile substations, shunt reactors, harmonic filter banks, mining lighting and camera products, metal enclosed capacitor banks, unitized & turnkey substations, and many more

Trayer Switchgear - Trayer proudly manufactures low-maintenance vacuum switchgear of the highest caliber, designed to thrive in the most challenging circumstances. Every submersible, padmount or vaultmount product is backed by over 55 years of leading innovation in design and manufacturing.

DryKeep - Power Transformer Dry-out System With SMART* Dehydration Control