Rozruch silników dużej mocy prądu przemiennego przy rozdzielonych uzwojeniach stojana

A concept of part-winding starting of high power induction motors is presented. During the start up some of the parallel branches are directly supplied from a power network whereas the residual branches are disconnected. After start up of the motor all branches are fed in parallel. Calculated with FEM torque-speed characteristics for the selected connecting configurations are attached. Transients of torque, speed and current during start up are also presented.