Title :
New approach to the analysis of impulse voltage distribution in transformer windings
Author :
Honorati, O. ; Santini, E.
Author_Institution :
Dipartmento di Ingegneria Elettrica, Rome Univ., Italy
fDate :
7/1/1990 12:00:00 AM
Abstract :
A new calculation method for the analysis of transient voltage phenomena in HV power transformers is presented. Consideration is given to the electric, magnetic and current fields in the windings. An equivalent circuit is derived; this consists in the connection of two networks, one magnetic the other electric, whose components with their numerical values are deduced directly from the geometry of the transformer and from its electrical parameters. Application of the ensuing mathematical model to a real case of a 132 kV, 50000 kVA power transformer is discussed
Keywords :
power transformers; transformer windings; transients; 132 kV; 50000 kVA; HV power transformers; current fields; electric fields; electrical parameters; equivalent circuit; impulse voltage distribution; magnetic fields; transformer windings; transient voltage phenomena;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings C
