宣传推介资料 中日合资湖南湘原风能有限公司 1 XEMC Z72-1500/2000 WIND TURBINE 风 机 简 介 The turbine consists of various large components or building blocks mounted together at site and resulting in a wind turbine system. These building blocks are explained below. 风机是由几大部件组合在一起的系统，主要有以下部件 The generator 发电机 The generator is a multi-pole permanent magnet generator and is directly mounted to the hub. The magnets take care of the rotor excitation励磁 so no external field excitation 外励磁场 is needed. This implies that the generator losses reduce by 25% compared to a wound rotor with external field excitation. The stator, equipped with cooling fans, is located on the outside and is cooled by the outside air. The stator windings 定子绕组are vacuum 宣传推介资料 中日合资湖南湘原风能有限公司 2 impregnated 真空浸漆 under pressure. In the inside of the generator dried and, if necessary, filtered air is circulated. This air assures an equal temperature distribution in the generator and, as little leakage occurs through the seals, over-pressures the generator. Thus dust and salt particles cannot enter the generator. The weight of the generator is 49 ton and measurements are 3.9m x 2.0m. 发电机是一多极永磁发电机，直接安装在轮毂上。磁铁提供转子励磁，所以不需要外励磁场，与带外励磁场的绕线转子比较，发电机 的损耗可降低 25%。定子外部装有冷却风扇，由空气冷却。定子绕组用真空压力浸漆（VPI）。通过有经过过滤的干燥循环空气,保证了发电机内的温度均匀，当密封处稍有泄漏时，保证发电机的内部为正压，因此灰尘和盐雾不可能进入到发电机内。发电机的重量为 49 吨，外形尺寸为 3.9m× 2.0m。 The main bearing 主轴承 The main bearing is a specially designed two row cylindrical roller bearing of large diameter. The inner non-rotating ring is mounted to the generator stator...
