Arc-flash detection relay minimizes dangerous arc-fault energy

Schweitzer Engineering Laboratories Inc. (SEL) offers arc-flash detection (AFD) capability in the SEL-751A Feeder Protection Relay, providing automatic protection against dangerous arc-flash events. See photo.

04/20/2009


Schweitzer Engineering Laboratories SEL-751A Feeder Protection Relay with arc-flash detection (AFD) capability

Schweitzer Engineering Laboratories Inc. (SEL) offers arc-flash detection (AFD) capability in the SEL-751A Feeder Protection Relay .

Pullman, WA – Schweitzer Engineering Laboratories Inc. (SEL) offers arc-flash detection (AFD) capability in the SEL-751A Feeder Protection Relay, providing fully automatic protection against dangerous arc-flash events. Without AFD, the arc flash can cause severe personal injury, extensive equipment damage, and lengthy system outages. In contrast, AFD interrupts power to the arc flash before it can cause significant damage. Anyone with metal-clad switchgear will benefit from using the SEL-751A with AFD.
The SEL-751A AFD solution uses fiber-optic, arc-flash light sensors to detect the light produced by an arc-flash event. To prevent false tripping, the SEL-751A looks for an overcurrent that coincides with the light flash. When both conditions are met, the SEL-751A sends a trip signal to the circuit breaker in as fast as 2 ms. This fast tripping significantly reduces the damage-causing energy released by the arc-flash event.
“As a result of new NESC and NFPA requirements, many utilities and industrial companies are looking for ways to mitigate arc-flash hazards. The SEL-751A can reduce these hazards by stopping an arc-flash event before it escalates into a catastrophic, high-energy event,” said SEL R&D Manager Angelo D’Aversa.
For more information, see SEL-751A Feeder Protection Relay with AFD .
www.selinc.com/Arc-Flash/
Also read from Control Engineering : Arc flash blowout.

- Edited by Mark T. Hoske , editor in chief
Control Engineering News Desk www.controleng.com
Register here to select your choice of free eNewsletters .





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Controller programming; Safety networks; Enclosure design; Power quality; Safety integrity levels; Increasing process efficiency
Additive manufacturing benefits; HMI and sensor tips; System integrator advice; Innovations from the industry
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me