Induction furnace and operation method of induction furnace

摘要

In the induction furnace, even if the resistance value of the insulator is lowered due to the moisture adsorbed on the insulator between the ground and the ground provided outside the furnace, no relatively large current flows to the Coyle.Solution: while the intermittent switch (6) is always on and when the shut-off switch (7) is always off, the resistance detected by the current detecting section (9) and the voltage detected by the voltage detecting section (10) become greater than the threshold valueTurn on the intermittent switchAfter the shut-off switch (7) is turned on and offThe intermittent switch (6) is always turned on and the shut-off switch (7) is always turned off.If the resistance value is greater than the threshold valueAlternating current flows to Coyle (L).Diagram