Investigation of asynchronous electric motor winding in heating mode and drying mode to prevent moisture

Asynchronous motors are used in many agricultural industries. Agricultural production is a with high humidity. As noted above, one of the main reasons for failure electric installations during prolonged downtime insulation breakdown due to its dampness. Moistening winding will degrade dielectric performance insulation. If motor often switched on and total operating time per day at least 4 - 6 hours rooms humidity but without ammonia vapors, then dangerous waterlogging windings does not occur. Preheating an power 3 kW, maintain state resistance level safe switching on, can be provided 12 W.