DocumentCode :
2318571
Title :
Arc-Flash Energy Mitigation by Fast Energy Capture
Author :
Roscoe, G. ; Papallo, Tom ; Valdes, Marcelo
fYear :
2009
fDate :
4-8 Oct. 2009
Firstpage :
1
Lastpage :
9
Abstract :
The predominant technologies for reducing arc-flash incident energy today rely on the speed of protective devices, remote operation, encapsulating arc-flash energy in arc-resistant enclosures, and that channel energy where it is less dangerous, and on crowbars to divert the arc energy into a bolted fault. Though more thoughtfully applied than they may have been in the past, none of these methods has provided a solution for all situations, particularly in existing installations. This paper will describe a method, with test results, for arc-flash energy sequestration that is able to divert an arcing fault´s energy into a specific environment within a half-cycle after initiation of the arc, without the need to introduce bolted fault current like a crowbar or for fast current interruption, such as a current-limiting fuse. The system protection provided is similar to that of arc-resistant switchgear without reliance on equipment sheathing and can be added after normal equipment is installed. Further advantages include the protection system and switchgear´s ability for reuse after an event, as well as the ability to easily test in situ without the need for cumbersome high-current test equipment.
Keywords :
arcs (electric); power system faults; power system protection; switchgear protection; arc-flash energy sequestration; arc-resistant switchgear; arcing fault energy; crowbar; equipment sheathing; power system protection; Circuit breakers; Circuit faults; Electrical fault detection; Energy capture; Explosion protection; Fault detection; Fuses; Hazards; IEEE members; Switchgear;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE
Conference_Location :
Houston, TX
ISSN :
0197-2618
Print_ISBN :
978-1-4244-3475-6
Electronic_ISBN :
0197-2618
Type :
conf
DOI :
10.1109/IAS.2009.5324854
Filename :
5324854
Link To Document :
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