ZERO PHASE SEQUENCE IMPEDANCE AND TANK HEATING MODEL FOR 3-PHASE 3 LEG CORE TYPE POWER TRANSFORMERS COUPLING MAGNETIC-FIELD AND ELECTRIC-CIRCUIT EQUATIONS IN A FINITE-ELEMENT SOFTWARE
T. Ngnegueu et al., ZERO PHASE SEQUENCE IMPEDANCE AND TANK HEATING MODEL FOR 3-PHASE 3 LEG CORE TYPE POWER TRANSFORMERS COUPLING MAGNETIC-FIELD AND ELECTRIC-CIRCUIT EQUATIONS IN A FINITE-ELEMENT SOFTWARE, IEEE transactions on magnetics, 31(3), 1995, pp. 2068-3071
In this paper, we present a finite element model for the calculation o
f zero phase sequence reactance for three phase three leg core type po
wer transformers. An axisymetrical approximation is assumed. A simplif
ied model is used to assess the tank's hottest spot temperature.