Analysis of the system of poloidal fields in the ''T-10M'' device

Results of numerical simulation of inductor field and operating conditions of the system of poloidal field of the ''T-10M'' device are presented. Considered is a variant with outer as to the toroidal field winding (TFW) control winding (CW). Inductor and CW form primary winding of the transformer, plasma filament being secondary one. The inductor calculation is carried out with an account of non-linear element in magnetic chain of iron core, which is at the induction of B<=3.3 T. Dimer axially symmetric task is considered. Results of numerical simulation of the inductor field for one-turn variant of the inductor are presented. In all the range of the inductions considered the values of scattering fields and the field gradient in the filament centre do not exceed corresponding values of 3x10-3T and 0.68x10-2 T/m. Two models of the discharge development are considered: a) the discharge is formed simultaneously all over the volume of the chamber with the radius a=0.7 m, b) at first the discharge is formed in the central part of the chamber with a=0.3 m, where the mean current density reaches the greatest value; the further increase in current results from the low radius increase at constant mean current density. Calculation results of field and forces affecting the TFW at sudden disappearance of current in a plasma are presented