Title :
Investigation on the Factors Affecting Inrush Current of Transformers Based on Finite Element Modeling
Author :
Feyzi, M. Reza ; Sharifian, M.B.B.
Author_Institution :
Fac. of Electr. & Comput. Eng., Tabriz Univ.
Abstract :
A finite element model of a single phase transformer coupled with a voltage fed electric circuit is presented. The model can be used for various purposes. It is also capable to include the eddy-current effect in the core and/or in solid bars, if needed. A time-stepping finite element solution is used to study the influence of some major parameters on the inrush current level, including the primary winding distance from the core, the primary winding resistance, residual magnetic flux density in the core and its polarity. Simulation results showed a good agreement with corresponding test results
Keywords :
eddy currents; finite element analysis; magnetic flux; power transformers; transformer cores; transformer windings; core; eddy-current effect; inrush current level; primary winding distance; primary winding resistance; residual magnetic flux density; single phase transformer; time-stepping finite element model; voltage fed electric circuit; Bars; Coupling circuits; Finite element methods; Magnetic cores; Magnetic flux density; Phase transformers; Solids; Surges; Testing; Transformer cores; finite element method; inrush current; transformer;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4777977
