Title :
Steady-state and transient operational behaviour of a plunger core reactor with parallel windings
Author :
Schmidt, Erich ; Hamberger, Peter
Author_Institution :
Vienna Univ. of Technol., Vienna
Abstract :
The steady-state and transient behaviour of a plunger core reactor with four parallel connected winding paths is calculated from voltage driven finite element analyses. The 3D finite element model utilizes a direct circuit coupling to take into account the applied voltage and the parallel windings paths. Consequently, the unknown coil currents are obtained with the full influence of the axial position of the plunger core. In case of steady-state conditions, the coil currents obtained from the numerical analyses are compared with those obtained from measurements. Moreover, the Lorentz forces acting on the coil windings and the Maxwell forces acting on the plunger core are calculated in dependence of the plunger core air-gap.
Keywords :
current limiting reactors; finite element analysis; high-voltage engineering; power distribution faults; power distribution protection; short-circuit currents; Lorentz forces; Maxwell forces; coil windings; direct circuit coupling; high-voltage distribution network; parallel windings; plunger core air-gap; plunger core reactor; short circuit current compensation; steady-state operational behaviour; transient operational behaviour; voltage driven finite element analysis; Air gaps; Coils; Coupling circuits; Current measurement; Finite element methods; Inductors; Numerical analysis; Steady-state; Transient analysis; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2007. ICEMS. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-86510-07-2
Electronic_ISBN :
978-89-86510-07-2