FIELD: electrical engineering.
SUBSTANCE: invention relates to the electrical equipment. Temperature control system (300) for variable frequency drive (10, 100) includes sealed housing (310), power electronic component (330) and / or power magnetic component (320) located inside sealed housing (310). Controller (400) configured to control temperature of power electronic component (330) and / or power magnetic component (320) relative to internal air temperature (Tair) inside sealed housing (310). Temperature control before supply of electric energy and operation of power electronic component (320) and / or power magnetic component (320) to prevent electric power electronic component (330) and / or power magnetic component (320) caused by condensation of electric failure using cooling system (340) and / or heating system (350).
EFFECT: technical result consists in prevention of electric circuit damage caused by condensation.
20 cl, 5 dwg
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