Synchrophasors - Schweitzer Engineering Laboratories
Synchronized phasor measurements (synchrophasors) provide real-time measurement of electrical quantities from across a power system.
Real-World Synchrophasor Solutions Edmund O. Schweitzer, III and David E. Whitehead Schweitzer Engineering Laboratories, Inc.
Model Validation. Validation of system models and components has been one of the first uses of synchrophasors. This validation occurs through use of inter-area communication or …
Jan 15, 2007 · INTRODUCTION Power system state estimators filter power system measurements and estimate the power system state. This application note summarizes the …
Fault Location, Isolation, and Service Restoration (FLISR)
The SEL FLISR solution reduces outage times and impact by automatically switching between devices to restore power in the event of a fault.
Monitoring and Automation - Schweitzer Engineering Laboratories
Our complete monitoring and automation solutions include hardware, communications, synchrophasor measurements, data collection and archiving, and operations software to help …
Wide-Area Situational Awareness
SEL wide-area situational awareness (WASA) systems provide operators and engineers the right information at the right time for efficient operation and analysis of the power system. In 2002, …
SEL-400 Series Relays: Freeform Logic, Part 1
5 days ago · This video is Part 1 in a series that provides a brief introduction to freeform logic of SEL-400 series relays using ACSELERATOR QuickSet SEL-5030 Software. View in fullscreen …
SEL-3378 - Schweitzer Engineering Laboratories
Jan 23, 2017 · Combine the power of synchrophasor message processing with flexible programmable logic for wide-area protection and control applications.
The paper begins with discussion of some implementations of negative-sequence filters in older relays. Next is a brief review of symmetrical components and an analysis of unbalanced faults …