DWUBIEGOWY SILNIK SYNCHRONICZNY W UJ&CIU POLOWO- OBWODOWYM W RÓ*NYCH STANACH PRACY TWO SPEED SYNCHRONOUS MOTOR IN FILED-CIRCUIT FORMULATION IN DIFFERENT STATES OF WORK

The work presented calculation results of a twospeed synchronous, silentpole, high power motor . The calculations based on the examined two dimensional, field-circuit model for the large power motor, type GAe 1510/12p were done. Using the prepared model, calculations of static (no load, load) characte ristic as well as dynamic (start up to no load) were compiled. A comparison between the calculated and measured results of physical quantities for load, in these synchronous motor with changing pole number of magnetic field, was presented. The following physical quantities were calculated: the armature and field winding current, electromagnetic torque, flux density and electromagnetic forces for different value of filed current, for both rotating speed. The satisfactory convergence between the results of ca lculations and measurements allows the authors to claim, that the examined model of the motor is correct. It may be therefore accepted, that the described model is useful in evaluation of events occurring in different states of motor operation.