FIELD: heat treatment of items.
SUBSTANCE: proposed induction plant designed for heat treatment of items that has electronic switch unit and control unit for electronic switches is provided in addition with three-phase transformer whose secondary winding uses zigzag circuit arrangement and transformer output is connected to electronic switches of same conductivity; one of two switches of each winding is connected to primary winding leads of single-phase transformer whose center tap is connected to that of three-phase transformer secondary winding through choke; magnetic flux through magnetic circuit coils is closed through item being heated.
EFFECT: enhanced balancing in loading supply mains phases in load power regulation.
1 cl, 2 dwg
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| DEVICE FOR REGULATING AND BALANCING THREE-PHASE VOLTAGE | 2000 |
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