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4890 Results Found  Current Page: 1 of 489
Product

SEL Cables

SEL manufactures high-quality cables for connecting a variety of devices. You can order cables to specific lengths to meet your needs. Each cable is quality tested to ensure reliability and proper operation.
Recorded Webinar

SEL powerMAX for Utilities—Advancing Remedial Action Schemes

April 28, 2021

This webinar discusses how an SEL powerMAX remedial action scheme (RAS) solution helps the bulk power system function closer to stability limits and prevents blackouts. We also cover how to operate transmission corridors m…
Recorded Webinar

SEL Blueframe—A Secure Application Platform Designed for Operational Technology Systems

May 26, 2021

This webinar introduces the SEL Blueframe and Data Management and Automation applications. During the webinar, you will learn how these new solutions support your efforts in increasing system security, efficiency (ease of use), and data utilization.
Conference, tradeshow

PAC World Global Conference 2021

September 1–2, 2021
Recorded Webinar

Finding Simplicity in the Complex World of Feeder Protection

July 14, 2021

It's possible to get more out of a basic feeder protection relay without adding complexity. We've combined protection, monitoring, and control in a simple, compact package in the new SEL-851 Feeder Protection Relay.
SEL University Course

PROT 401: Protecting Power Systems for Engineers

December 6–10, 2021
Orlando, FL, USA
SEL University Course

APP 3530 ADV-1: Introduction to IEC 61131 in the RTAC

September 21–23, 2021
Salt Lake City, UT, USA
SEL University Course

APP 3530: SEL-3530 Real-Time Automation Controller (RTAC)

September 14–16, 2021
Charlotte, NC, USA
Regional Seminar

Nashville Regional Seminar

September 28, 2021
Franklin, TN, USA
SEL University Course

APP 651R: SEL-651R Advanced Recloser Control

October 6–7, 2021
Charlotte, NC, USA

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835 Results Found  Current Page: 1 of 84
Technical Paper

Forward to the Basics: Selected Topics in Distribution Protection

Through analysis of event reports recorded by relays, this paper will present several examples of settings that led to unintended operation of distribution protection, including transformer delta-winding residual overcurrent protection, transformer high-voltage phase overcurrent protection, and others.

Authors
  • Lee Underwood
  • David Costello
Presented At
2008
  • WPRC
2009
  • Texas A&M Relay Conference
2010
  • REPC
Date Code:   2008-12-16
Technical Paper

Lessons Learned Analyzing Transmission Faults

In the interest of reducing transmission line relay misoperations, this technical paper shares practical lessons learned through experience analyzing transmission line relay event reports.

Authors
  • David Costello
Presented At
2007
  • WPRC
2008
  • Texas A&M Relay Conference
  • MIPSYCON
  • Georgia Tech PRC
Date Code:   2007-09-13
Technical Paper

Analysis of Selected Motor Event and Starting Reports

This paper investigates several real-world events with data from both motor starting reports and event records. The data demonstrate the value of having devices capable of recording motor data during starts and fault events and of capturing and reviewing such data for the purpose of determining root cause.

Authors
  • Derrick Haas
  • Jason Young
  • Ryan McDaniel
Presented At
2012
  • Texas A&M Relay Conference
  • Georgia Tech FDA
2020
  • PowerTest Conference
Date Code:   2012-02-17
Technical Paper

Lessons Learned From Generator Event Reports

This paper analyzes real-world event report data in the interest of uncovering valuable lessons for setting and commissioning generator relays.

Authors
  • Rogerio C. Scharlach
  • Jason Young
Presented At
2009
  • WPRC
2010
  • Texas A&M Relay Conference
  • MIPSYCON
  • Georgia Tech PRC
Date Code:   2010-03-03
Technical Paper

Validating Transmission Line Impedances Using Known Event Data

This paper discusses how to use event data (voltages, currents, and fault location) from relays at two ends of a transmission line to calculate positive-, negative-, and zero-sequence line impedances. Impedances calculated from real event data can be used to validate relay settings and short-circuit models.

Authors
  • Ariana Amberg
  • Alex Rangel
  • Greg Smelich
Presented At
2012
  • WPRC
  • Texas A&M Relay Conference
  • Georgia Tech FDA
2013
  • MIPSYCON
  • Clemson PSC
Date Code:   2016-04-25
Technical Paper

Lessons Learned Through Commissioning and Analyzing Data From Transformer Differential Installations

In the interest of reducing transformer differential misoperations, we share in this technical paper practical lessons we have learned through experience with commissioning and relay event report analysis.

Authors
  • David Costello
Presented At
2006
  • WPRC
2007
  • Texas A&M Relay Conference
  • PPIC
  • Georgia Tech PRC
  • Clemson PSC
Date Code:   2009-03-24
Technical Paper

Case Study: High-Density Distribution Coordination Using High-Speed Communications

This case study, focused on Alabama Power, describes a topology-based coordination scheme that leverages the utility's high-speed communications infrastructure to provide advanced distribution protection.

Authors
  • Robert M. Cheney, Alabama Power
  • John T. Thorne, Alabama Power
  • Robert Van Singel
  • Andrew Hanson
  • Chris Anderson
  • Joshua Hughes
Presented At
2020
  • WPRC
2021
  • Georgia Tech PRC
  • Texas A&M Relay Conference
Date Code:   2020-04-23
Technical Paper

Distance Element Improvements – A Case Study

This paper shares details about an event and its root cause, contrasts distance and fault identification algorithms, demonstrates methodical analysis techniques, and proposes solutions. This paper also highlights that engineers face the challenge of always staying current with their experience and understanding of the “state-of-the-art.” The paper challenges engineers to do the right thing, find root cause, and solve problems.

Authors
  • David Costello
  • Karl Zimmerman
Presented At
2008
  • Texas A&M Relay Conference
  • Georgia Tech PRC
Date Code:   2008-04-16
Technical Paper

Aspects of Overcurrent Protection for Feeders and Motors

This paper discusses the coordination of the characteristics and the backup and redundancy possible with microprocessor relays.

Authors
  • E. O. Schweitzer, III
  • S. E. Zocholl
Presented At
1994
  • IEEE I&CPS
1995
  • Pennsylvania Electric Association Relay Committee Meeting
Date Code:   1994-05-02
Technical Paper

Protecting Distribution Feeders for Simultaneous Faults

In this paper, we describe the causes of simultaneous faults on distribution feeders and discuss overcurrent protection coordination problems caused by these faults.

Authors
  • Jorge Betanzos Manuel, Comisión Federal de Electricidad
  • Héctor E. Lemus Zavala, Comisión Federal de Electricidad
  • Eliseo Alcázar Ramírez
  • David Sánchez Escobedo
  • Héctor J. Altuve
Presented At
2010
  • WPRC
  • Texas A&M Relay Conference
Date Code:   2010-01-20