Technical peculiarities of plasma ohmic heating at the ''Uragan-3'' torsatron-stellarator

For the purpose of studying plasma with current at the ''URAGAN-3'' torsatron and obtaining maximum parameters of plasma ohmic heating a highly effective inductor design with a spatial divertor is proposed. The inductor coil fully repeats the torsatron magnetic system configuration. The helical inductor coil turns of copper plates are connected in series and placed on the bottom of power carcasses. Two compensating turns formed of power carcasses of compensation coil and copper rings are connected in parallel. It is shown that despite a strong electromagnetic connection of inductor with the torsatron magnetic system, overvoltages and currents arising in the magnetic system at plasma ohmic heating current excitation can be decreased down to acceptable values by the choice of the corresponding magnetic system power supply or application of capacitor filters