ICS 29.160 CCS K 20 中华人民共和国国家标准 GB/T 20834—2024 代替 GB/T 20834—2014 发电电动机技术要求 Technical requirements for motor-generator 2024-09-29 发布 2025-04-01实施 国家市场监督管理总局 发 布 国家标准化管理委员会 GB/T 20834—2024 目 次 前言 ····································································································· Ⅲ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 1 4 现场运行条件 ························································································· 1 5 定额与参数 ··························································································· 2 5.1 容量与功率 ······················································································ 2 5.2 额定电压 ························································································· 2 5.3 额定功率因数 ···················································································· 2 5.4 额定转速 ························································································· 2 5.5 运行期间电压和频率的变化 ····································································· 2 5.6 效率和损耗 ······················································································ 3 5.7 电气参数和时间常数 ············································································· 4 5.8 总谐波畸变率（THD） ········································································· 4 6 温度 ·································································································· 4 6.1 温升 ······························································································ 4 6.2 定子温升的测量 ················································································· 5 6.3 非基准运行条件和定额时温升限值的修正 ······················································ 5 6.4 轴承温度 ························································································· 5 7 运行特性及电气连接 ················································································· 5 7.1 特殊运行要求 ···················································································· 5 7.2 电动工况起动方式 ··············································································· 5 7.3 电气连接 ························································································· 5 8 绝缘系统 ······························································································ 5 9 机械性能与设计 ······················································································ 6 9.1 旋转方向 ························································································· 6 9.2 最大设计转速 ···················································································· 6 9.3 临界转速 ························································································· 6 9.4 振动分析与固有频率 ············································································· 6 9.5 结构强度和刚度 ················································································· 6 9.6 起动和停机 ······················································································ 6 9.7 超速 ······························································································ 7 10 振动与摆度 ·························································································· 7 11 噪声 ································································································· 7 Ⅰ
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