Electrical Testing, Commissioning & Maintenance for Substations & Power Systems
About Us
Substation Equipment Services (SES) is a Pacific Northwest–based electrical testing and commissioning firm serving Oregon, Washington, Idaho, and surrounding regions.
With more than 20 years of industry experience, SES was founded by Matt and Joe on a simple principle: deliver exceptional technical expertise through a deliberately small, highly skilled team. This approach ensures precision, accountability, and a level of customer service that stands out in the electrical testing field. We provide comprehensive testing, commissioning, troubleshooting, and specialized electrical services with the reliability, responsiveness, and professionalism our clients depend on.
What We Offer
We serve Construction, Industrial, Electric Utility, Manufacturing and Power Generation clients offering a range of services to meet the needs of every client.
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From new construction to existing facilities, we provide complete acceptance testing, maintenance testing, energization support, and commissioning services to ensure your electrical systems are installed correctly, perform as designed, and are ready for safe, reliable operation. Our team works alongside owners, contractors, and engineers to deliver confidence at every stage of your project.
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Reliable power starts with proactive maintenance. We develop and execute preventive and predictive maintenance programs that help identify issues before they become failures, extend equipment life, reduce unplanned outages, and improve overall system performance. Our services include thermal imaging, partial discharge inspections, power quality monitoring, and comprehensive equipment assessments.
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We specialize in testing, troubleshooting, and validating the systems that protect your electrical infrastructure. Our capabilities include relay and control testing, control wiring verification, primary and secondary injection testing, functional trip testing, insulation and dielectric testing, power factor testing, VLF testing, battery load bank testing, and detailed system diagnostics to quickly identify and resolve complex electrical issues.
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Our technicians have experience testing, inspecting, and supporting a wide range of electrical equipment, including power transformers, metal-clad switchgear, circuit breakers (SF₆ and vacuum), motor control centers (MCCs), medium- and high-voltage cable, circuit switchers, station battery systems, grounding systems, protective relays, generators, and motors. We also provide minor repairs, equipment replacements, electrical system upgrades, and responsive field service when you need it most.
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Beyond field testing, we provide the technical support needed to keep projects moving. Our services include project management, technical drafting, As-Built drawing updates, field data collection, test plan development, maintenance program documentation, arc flash data collection assistance, factory acceptance testing (FAT) support, transformer manufacturing oversight, and detailed reporting that gives clients the information needed to make informed operational decisions.
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Whether you need additional technical expertise for a short-term project or long-term support for ongoing operations, we seamlessly integrate with your team. Our experienced field technicians and engineers provide scalable staffing solutions, project oversight, technical consulting, and on-site support to help you meet demanding schedules while maintaining the highest standards of safety and quality.
Trusted By
Contact Us
Need Electrical Testing Services? Looking for a new exciting career? Let us know by filling this form out or reach us directly at:
Phone: (360) 448-8477
Email: info@ses-testing.com