SEL-351S Protection System Data Sheet
The SEL-351S Protection System inverse-time overcur-rent relay curve settings offer two reset characteristic choices for each element. Setting EM Reset Delay = Y emulates electromechanical
Get QuoteRelated Topics:
Tunisian Relay Protection Device
Protect a Range of Substation Assets Using One Relay
Protect Multiple Substation Assets Using One Relay Minimize the number of devices required to protect a substation by using a single device to provide comprehensive protection for multiple assets.
Get Quote
SEL Protection and Monitoring System
Within the University there is a collection of digital protective relays manufactured by Schweitzer Engineering Laboratories, where the functionality, requirements and operational knowledge of the
Get Quote
2022 Product and Solution Guide
Looking Back, Moving Forward SEL Founder, President, and Chief Technology Oficer Dr. Edmund O. Schweitzer, III, invented the first microprocessor-based digital protective relay, the SEL-21, in 1982.
Get Quote
SEL Multifunctional Protection Relays
These relays come equipped with a range of features, including remote monitoring and control, easy power parameter configuration, fault waveform analysis, and support for multiple communication
Get Quote
SEL protection relay IEDs – Electrical Engineering
Schweitzer Engineering Laboratories (SEL) produces a wide range of relays for protection, automation, and control in power systems. IEDs (Intelligent Electronic
Get Quote
SEL-351A, -1 Relay
The SEL-351A Instruction Manual describes common aspects of protection relay application and use. It includes the necessary information to install, set, test, and operate the relay and more detailed
Get Quote
{{$pageCtrl.pageData.baseTitle}}
Explore SEL University courses to enhance your knowledge in power system protection, automation, and control with hands-on training and expert guidance.
Get Quote
Protective Relays
Protect critical components in your power system with a wide range of SEL protective relays covering applications and use cases from low to high-voltage protection.
Get Quote
SEL-751A Feeder Protection Relay | Schweitzer
The SEL-751A Feeder Protection Relay is for industrial and utility feeder protection with flexible I/O options, easy retrofit, and fast setup and configuration. Complete
Get Quote
Rockwell Automation Library for Electrical Protection Devices
The Allen-Bradley® 865 is a differential protection relay that is used for various tasks. These tasks include selective differential protection of substation transmission lines, medium-voltage overhead
Get Quote
SEL 8-Series Feeder Protection Relay
Key Features and Benefits The SEL-851 Feeder Protection Relay provides an exceptional combination of protection, monitoring, and control in a compact and simple package.
Get Quote
Available Protective Elements for Various Fault Types
This application guide is a reference for applying SEL relays in systems with inverter-based resources (IBRs) such as wind farms, solar installations, battery energy storage systems (BESSs),...
Get Quote
Digital Protective Relays | Nuclear | Curtiss-Wright
Protect asynchronous (induction) and synchronous motors with one SEL-710-5 Motor Protection Relay. Features include broken rotor bar detection and variable
Get Quote
The Relay That Changed the Power Industry
Edmund Schweitzer with the first digital microprocessor-based protective relay, the SEL-21 digital distance relay/fault locator , and the SEL
Get Quote
SEL-700G Family of Generator and Intertie Protection Relays
Major Features and Benefits The SEL-700G family of protection relays provides unsurpassed protection, integration, and control features in a flexible, compact, and cost-effective package.
Get Quote
SEL-700G Generator Protection Relay | Schweitzer
The SEL-700G is the right solution for utility and industrial generator protection, with autosynchronizer, flexible I/O, and advanced communications. Apply the SEL
Get Quote
SEL-411L Advanced Line Differential Protection, Automation, and
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
Get Quote
SEL-751 Feeder Protection Relay | Schweitzer
The SEL-751 Feeder Protection Relay is ideal for directional overcurrent, fault location, arc-flash detection, and high-impedance fault detection applications.
Get Quote
SEL SEL-351S Protection System Manuals
27 Applications 28 Figure 1.1 SEL-351S Relays Applied Throughout the Power System 28 Hardware Connection Features 29
Get Quote
SEL-9L Line Relay | Schweitzer Engineering Laboratories
The SEL-9L relay enables distance protection with advanced trip circuit monitoring, flexible networking, simplified settings management and more.
Get Quote
Comprehensive power system protection
Industry-leading products minimize process interruption, maintain uptime, and protect your equipment and bottom line. The SEL-700 series supports numerous communications protocols, including
Get Quote
PROT 401: Protecting Power Systems for Engineers
PROT 401 provides an overview of the principles and schemes for protecting power lines, transformers, buses, generators, and motors. The course provides basic
Get Quote
SEL-311C Data Sheet
SEL-311C Protection and Automation System Powerful Solutions for Transmission Line Protection Major Features and Benefits The SEL-311C Protection and Automation System is an advanced, full
Get Quote