Title :
Effect of Single-Phase Reclosing on Industrial Loads
Author :
Sutherland, Peter E. ; Short, Tom A.
Author_Institution :
GE Energy Services, Schenectady, NY
Abstract :
Three-phase reclosers with single-phase tripping are being more widely employed on utility distribution feeders. They have the advantages of increasing reliability for the customers on the feeders, because the majority of distribution feeder faults are single-phase. However, certain difficulties may occur when three-phase industrial and commercial loads, with three-phase transformers and motor loads are interrupted on one phase only. These include overheating of motors, ferroresonance of transformers, tripping of power electronic drives and backfeeding of distribution lines. This paper examines these effects, their severity and mitigation techniques
Keywords :
ferroresonance; load distribution; motor protection; power distribution faults; power distribution lines; power distribution protection; power transformers; commercial loads; distribution protection; industrial loads; motor loads; motor protection; power distribution lines; power electronic drives; power tripping; single-phase reclosing; single-phase tripping; transformer ferroresonance; transformers; utility distribution feeders; Circuit faults; Drives; Electrical equipment industry; Ferroresonance; Fuses; Phase transformers; Power electronics; Power system protection; Substations; Voltage; component; distribution protection; ferroresonance; motor protection; reclosers; single phasing;
Conference_Titel :
Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
1-4244-0364-2
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2006.256912
