Mathematical modelling of transformer discharge

The theoretical investigations of the low-frequency discharge of a transformer type without gas flow were carried out. The application of the kinless approach with the electrodynamic description of the discharge and the possibility of a steady approach during calculation of the argon plasma characteristics in the frequency range 1-10 kHz and at pressures of 10-100 kPa was shown. The existence of two regimes of discharge burning was established: stable one with a high temperature and unstable one with a low temperature. The influence of frequency and voltage on the plasma coil, type and pressure of plasma gas on the discharge characteristics was investigated. The results of modelling are in agreement with experiments