ELECTRIC HEATER Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: electric heater has built-in transformer with laminated core 2 which primary winding 1 is connected to network. Heating part 3 of heater is part of secondary short- circuited winding of transformer. It has optional shape defining shape of heater. It is manufactured from ferromagnetic sheet material with current- carrying coat 5 which thickness is less than depth electromagnetic wave penetrates into coat on frequency of feeding network. EFFECT: expanded operational capabilities. 2 dwg