Title :
Adaptive BOWL impedance relay
Author :
Li, Gang ; Zhu, Shengshi ; Sui, Fenghai
Author_Institution :
Nanjing Autom. Res. Inst., China
fDate :
1/1/1999 12:00:00 AM
Abstract :
An adaptive BOWL impedance relay is proposed in this paper. Compared with the circular and quadrilateral impedance relays, it has the advantages of larger coverage of fault resistance, simple criterion, fast operation, mature technique, easy setting, good phase selection, distinct directionality, accurate distance measurment, high security in heavy load and easy to realize adaption. Simulating calculation and practical tests have verified the analyses. The BOWL relay has been applied in microprocessor-based distance protection developed by our institute
Keywords :
distance measurement; electric impedance; microcomputer applications; power engineering computing; power system measurement; power system protection; relay protection; adaptive BOWL impedance relay; circular impedance relay; distance measurment; distinct directionality; fault resistance; heavy load; high security; microprocessor-based distance protection; phase selection; quadrilateral impedance relay; Electrical resistance measurement; Impedance measurement; Polarization; Power & Energy Society; Power system relaying; Printing; Protective relaying; Relays; Shape; Transactions Committee;
Journal_Title :
Power Delivery, IEEE Transactions on
