Making Electric Power Safer, More Reliable, and More Economical 2350 NE Hopkins Court · Pullman, WA 99163 USA Tel: +1.509.332.1890 · Fax: +1.509.332.7990 selinc.com · [email protected] 385-0074

2019 TECHNOLOGY HIGHLIGHTS EXAMPLE POPULAR MODELS FOR THE SEL-751 FEEDER PROTECTION RELAY APPLICATION DETAILS Apply the SEL-FT50 and SEL-FR12 Fault Transmitter and Receiver System to speed up distribution protection with fault indication in 6 ms. (Page 103) MOTOR PROTECTION WITH TOUCHSCREEN HMI Visualize what you’re protecting— introducing the new touchscreen for the SEL-710-5 Motor Protection Relay. (Page 22) Simple feeder protection, including reclosing and electromechanical relay retrofit. WIRELESS FAULT DETECTION Discover the SEL-T400L Time-Domain Line Protection, the world’s fastest transmission...

LETTER FROM THE PRESIDENT We endeavor to start with first principles, and provide as much value as we can, through innovations, quality, service, fast delivery, and practical, fair pricing. We’ve developed several new technologies stemming from first principles, included them in new products, and now are seeing them go to work…thanks to you! These include faster tripping for faults on transmission and distribution systems and in transformers; cybersecurity breakthroughs; Smart Grid solutions; very fast and secure remedial action schemes; and efficient use of fiber for conveying analog signals....

TABLE OF CONTENTS SEL OVERVIEW SUBSTATION PROTECTION Substation Protection Overview.. . . . . . . . . . . . . . . . . . . . . . . . . . .52 Example Product Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Example Network Communications Diagram. . . . . . . . . . . . . . . . . 12 GENERATOR AND MOTOR PROTECTION Generator and Motor Protection Overview. . . . . . . . . . . . . . . . . . 14 Capacitor Bank Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Generator and Motor Protection Applications. . . . . . . . . . . . . . . 16 SEL-787-2/-3/-4 Transformer...

DISTRIBUTION PROTECTION FAULT INDICATORS, SENSORS, AND CTS Distribution Protection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Fault Indicators, Sensors, and CTs Overview.. . . . . . . . . . . . . . . .112 Distribution Protection Applications. . . . . . . . . . . . . . . . . . . . . . . . 86 Fault Indicators and Sensors Applications.. . . . . . . . . . . . . . . . . . 114 SEL-751 Feeder Protection Relay.. . . . . . . . . . . . . . . . . . . . . . . . . . . 88 SEL-FLT and SEL-FLR Fault and Load Transmitter and Receiver System. . . . . . . . . . . . . . . . . . . . . . . . ....

AUTOMATION CONTROLLERS Automation Control Overview.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Automation Control Applications. . . . . . . . . . . . . . . . . . . . . . . . . .138 Real-Time Automation Controllers (RTACs) SEL-3555/3530/3530-4/3505/3505-3/3560. . . . . . . . . . . . . . 144 SEL ICON® Integrated Communications Optical Network. . . . 182 SEL-2240 Axion®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 SEL-2411P Pump Automation Controller. . . . . . . . . . . . . . 152 SEL-2440 DPAC Discrete Programmable Automation Controller.....

PRECISE TIME ENGINEERING SERVICES Precise Time Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Engineering Services Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Precise Time Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 SEL-2488 Satellite-Synchronized Network Clock. . . . . . . . . . 204 Engineering Studies and Simulation Services. . . . . . . . . . . . . . 224 Arc-Flash Risk Assessment Services . . . . . . . . . . . . . . . . . . . . . . 226 Design and Drafting Services. . . . . . . . . . . . . . . . . . ....

OUR MISSION—MAKING ELECTRIC POWER SAFER, MORE RELIABLE, AND MORE ECONOMICAL SEL invents, designs, manufactures, and supports a complete line of products and services for the protection, monitoring, control, automation, and metering of electric power systems. Our solutions range from comprehensive generator and transmission protection to distribution automation and control systems. SEL teams offer services, education, and support for a variety of industries and throughout the power system. Our Engineering Services team provides engineering expertise and system solutions to customers worldwide....

INDUSTRIES WE SERVE From the beginning, we’ve provided solutions for electric utilities. As our company has grown, so have our product portfolio and the number of industries we serve. From airports and hospitals to the power grids of entire countries, SEL solutions are protecting and controlling critical operations around the world. Electric Power Generation Power Transmission and Distribution Renewable Energy Mission-Critical Power Systems Consumer Product Manufacturing

ENGINEERING IS OUR MIDDLE NAME At SEL, we are passionate about our work, knowing it contributes directly to improving the reliability of electric power, keeping people safe, and helping customers conserve resources through efficiency, simplicity, and creativity. We develop innovative products and services by focusing on the challenges our customers face. This helps us create the best solutions for a wide range of industries and applications. Every day, SEL engineers create new technologies and solutions to solve our industry’s challenges. OUR COMMITMENT TO QUALITY Because SEL equipment becomes...

"Society depends upon safe, reliable, and economical electric power. At SEL, we take our responsibility to this industry seriously. We strive to exceed expectations with extraordinary customer service, with expert application engineers who are always available to provide technical support close to our customers, and with sales engineers who solve problems by teaching and by adding value with SEL technology and innovation." —David Costello Senior Vice President of Sales and Customer Service SERVICE AND SUPPORT YOU CAN COUNT ON We understand the importance of local support, which is why we have...