Author/Authors :
M.، Kaufhold, نويسنده , , H.، Aninger, نويسنده , , M.، Berth, نويسنده , , J.، Speck, نويسنده , , M.، Eberhardt, نويسنده ,
Abstract :
The winding insulation of low-voltage induction motors in adjustable-speed drive systems with voltage-fed inverters is substantially more stressed than in linepowered motors. Consequently, this operation is subject to limitations depending on the electrical stress and on the failure behavior of the winding insulation. Actual recommendations do not consider sufficiently the physics behind these phenomena and contain large utilizable reserves.
