INDUCTION HEATING SYSTEM

摘要

The present invention intends to reduce unbalance among phase currents without use of a Scott connection transformer. The present invention is an induction heating system adapted to use a three-phase AC power source to operate a first induction heating apparatus including a first induction coil and a second induction heating apparatus including a second induction coil. In addition, the number of turns of the second induction coil is an even number. Also, one of a winding start point and a winding end point of the first induction coil is electrically connected to one phase of the three-phase AC power source, and the other one is electrically connected to a midpoint of the second induction coil. Further, the winding start point and the winding end point of the second induction coil are electrically connected to the remaining two phases of the three-phase AC power source.

主权项

1. An induction heating system adapted to use a three-phase AC power source to operate a first induction heating apparatus including a first induction coil and a second induction heating apparatus that has a magnetic circuit different from the first induction heating apparatus and includes a second induction coil, wherein:
a number of turns of at least the second induction coil is an even number; one of a winding start point and a winding end point of the first induction coil is electrically connected to one phase of the three-phase AC power source, and the other one is electrically connected to a midpoint of the second induction coil; and a winding start point and a winding end point of the second induction coil are electrically connected to the remaining two phases of the three-phase AC power source.