Title :
Flux-based current-differential relay for power transformer protection
Author :
Heydeman, J. ; van der Sluis, L.
Author_Institution :
Delft Univ. of Technol., Netherlands
Abstract :
The authors present a current differential relay for a power transformer based on the flux-current relationship of the transformer. The relay requires the primary voltages and the primary and secondary currents. It was implemented on a GESPAC 68000 microprocessor. Some operations are carried out by operational amplifiers. The relay principle has been tested in the laboratory on a 8 kVA 380 V/220 V single-phase transformer
Keywords :
digital control; magnetic flux; microcomputer applications; power transformers; relay protection; transformer protection; 220 V; 380 V; 8 kVA; GESPAC 68000 microprocessor; current differential relay; currents; digital control; flux-current relationship; magnetic flux; operational amplifiers; power transformer protection; single-phase; voltages;
Conference_Titel :
Developments in Power System Protection, 1993., Fifth International Conference on
Conference_Location :
York
Print_ISBN :
0-85296-559-1
