ICS 29.160.20 K 21 NB 中华人民共和国能源 行业标准 NB/T 31012—2019 代替NB/T 31012-2011 永磁风力发电机技术规范 Technical specification for permanent magnet type wind turbine generator 2019 - 11 - 04发布 2020 - 05 - 01实施 国家能源局 发布 NB/T 31012 —×××× 目 次 前言 ................................................................................. V 1 范围 .............................................................................. 1 2 规范性引用文件 .................................................................... 1 3 术语和定义 ........................................................................ 1 4 型号、型式、基本要求 .............................................................. 1 4.1 型号及其含义 .................................................................. 1 4.2 额定功率 ...................................................................... 2 4.3 额定电压 ...................................................................... 2 4.4 定额 .......................................................................... 2 4.5 接线方式、出线数目和相序 ...................................................... 2 4.6 旋转方向 ...................................................................... 2 4.7 热分级 ........................................................................ 2 4.8 结构和安装型式 ................................................................ 2 4.9 冷却方式 ...................................................................... 2 4.10 防护等级 ..................................................................... 2 5 技术要求 .......................................................................... 2 5.1 使用条件 ...................................................................... 2 5.2 定子绕组和铁芯温升限值 ........................................................ 3 5.3 轴承 .......................................................................... 3 5.4 永磁体 ........................................................................ 3 5.5 振动 .......................................................................... 3 5.6 噪声 .......................................................................... 3 5.7 超速 .......................................................................... 3 5.8 定子绕组直流电阻偏差 .......................................................... 3 5.9 绝缘电阻 ...................................................................... 3 5.10 线电压波形畸变率 ............................................................. 4 5.11 工频耐电压试验 ............................................................... 4 5.12 匝间耐冲击电压试验 ........................................................... 4 5.13 三相突然短路 ................................................................. 4 5.14 效率 ......................................................................... 4 5.15 过载 ......................................................................... 4 5.16 接地 ......................................................................... 5 6 试验方法 .......................................................................... 5 6.1 试验要求 ...................................................................... 5 6.2 试验项目 ...................................................................... 5 I NB/T 31012 —×××× 7 试验检查项目 ...................................................................... 14 8 标志、包装、运输和保管 ............................................................ 15 8.1 铭牌 .......................................................................... 15 8.2 接线标识 ...................................................................... 16 8.3 运输及保管 .................................................................... 16 8.4 随机文件 ...................................................................... 16 8.5 质量保证期 .................................................................... 16 表1 定子绕组和铁芯温升限值 .......................................................... 3 表2 绝缘电阻表的选择 ................................................................ 4 表3 电阻法的温度修正 ...................................................