Abstract: A field-replaceable sleeve assembly for a yaw brake assembly of a wind turbine includes a sleeve body and a sleeve attachment portion. The sleeve body is configured to be installed from a top side of a turbine bedplate into a receiving portion of the turbine bedplate of the wind turbine and secured to the turbine bedplate by activation of the sleeve attachment portion from the top side of the turbine bedplate.

Abstract: An insulation system and method are disclosed for insulating formed coils of hydroelectric machines, such as a hydroelectric generator. The system includes strand/turn insulation that may include one or more layers of different materials, depending upon the dielectric requirements. A ground wall insulation is applied over the group of turns. The coil may be sized in a slot cell section. Additional insulation layers are provided, including a slot corona suppression insulation that extends just beyond stator slots, a voltage grading layer, and an armor layer. Time temperature profiles and preheating may be used to cure coil sections via press and heat. The resulting system is suitable for installation in situ, and affords superior resistance to degradation.