The invention provides a method and device for treating a
stator of a large wind
turbine with insulating
varnish and a device for baking the insulating
varnish on the
stator. The method is characterized by adopting the process combining integral horizontal type
vacuum pressure impregnation and rotary baking to treat the
stator of the large permanent
magnet direct-drive wind
turbine with insulating
varnish, wherein the step of treating the stator with insulating varnish is as follows: sleeving the stator of the wind
turbine on a false shaft, then placing the false shaft on a false shaft supporting rotating mechanism in a baking oven, driving the false shaft to rotate via the false shaft supporting rotating mechanism and furthering driving the stator to rotate to realize horizontal type rotary baking of the stator, wherein the false shaft is parallel to the ground along the direction of the stator core slot. By utilizing the process combining
vacuum pressure impregnation and rotary baking, the stator of the large permanent
magnet direct-drive wind turbine is treated with the insulating varnish, the functions of the process completely conform to the requirements of production insulation treatment, and the loss of the insulating varnish in the baking process is reduced, the amount of the varnish on the surfaces of the windings is ensured and the
process time and energy consumptionare simultaneously reduced while ensuring the filling property of the insulating varnish on the stator windings.