FIELD: electrical engineering.
SUBSTANCE: electric heating device of transformer type includes closed magnetic conductor with induction primary winding and secondary multi-turn short-circuited winding. Secondary multiturn short-circuited winding is made of current-conducting arc-like elements, some branches of which are passed through the open magnetic conductor window and their ends are connected in series to the ends of adjacent branches located outside the closed magnetic conductor. Current-conducting arc-shaped elements are made of pipes. Pipes are made in tubes. Current-conducting arc-shaped elements are made of bimetallic pipes with inner layer of copper, cavities of pipes are filled with loose graphite.
EFFECT: technical result consists in improvement of efficiency, reliability and reduction of dimensions.
1 cl, 4 dwg
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