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PCB Rogowski coils benefit relay protection

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1 Author(s)
Kojovic, L. ; Cooper Power Syst., Franksville, WI, USA

Innovative Rogowski coils enable the design of advanced protection systems when used with new multifunction relays and fiberoptic communication. The protection systems have faster response times to faults and can easily adjust to load and/or power system configuration changes. Since the new Rogowski coils are very accurate and do not saturate, protection levels can be set to lower fault current thresholds, reducing the stress on the protected equipment. The whole system is immune to external magnetic fields and has self-testing logic. No wiring is necessary

Published in:

Computer Applications in Power, IEEE  (Volume:15 ,  Issue: 3 )