水轮发电机
类型：水轮发电机转子（磁极+磁轭+主轴）
Type: Hydro-generator rotor (poles + rim + shaft)
工艺：磁极挂装、圆度与动平衡校验
Process: Pole mounting, roundness and dynamic balancing verification
特点：运行平稳、温升低、绝缘性能可靠
Features: Smooth operation, low temperature rise and reliable insulation