Title :
Innovative Differential Protection of EAF Electrical Systems Using Low Energy Current Sensors
Author :
Kojovic, Ljubomir A. ; Day, Timothy R. ; Sharma, Dharam
Author_Institution :
Cooper Power Syst., T. A. Edison Tech. Center, Franksville, WI, USA
Abstract :
This companion paper to that presented at the 2009 IEEE IAS Annual Meeting describes new differential protection solutions for electric arc furnace (EAF) power systems that use Rogowski Coils as current sensors. These novel solutions provide multiple protection zones, covering the entire EAF electric supply system. The protection philosophy includes multiple differential zones of protection such as cables serving the EAF vault, series reactors, EAF transformers (including all power apparatus in the protection zones), and busbars.
Keywords :
arc furnaces; coils; electric sensing devices; power system protection; EAF electric supply system; EAF transformers; EAF vault; Rogowski coils; busbars; cable serving; electric arc furnace power systems; innovative differential protection; low energy current sensors; series reactors; Circuit faults; Coils; Current transformers; Inductors; Relays; Sensors; Substations;
Conference_Titel :
Industry Applications Society Annual Meeting (IAS), 2010 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4244-6393-0
DOI :
10.1109/IAS.2010.5616771
