美利体育登录入口官网:IEEE C57.116-2022
直接连接发电机的变压器的 IEEE 指南
IEEE Guide for Transformers Directly Connected to Generators
- 标准号
- IEEE C57.116-2022
- 发布
- 2023年
- 总页数
- 57页
- 发布单位
- 美国电气电子工程师学会
- 当前最新
- IEEE C57.116-2022
- 引用标准
- ANSI C84.1 IEEE Std 666 IEEE Std C50.12 IEEE Std C50.13 IEEE Std C57.12.00 IEEE Std C57.12.10 IEEE Std C57.12.70 IEEE Std C57.12.80 IEEE Std C57.131 IEEE Std C57.19.04
- 本体
- 发电机
- 适用范围
- This guide describes selection and application considerations for the unit power transformer and unit auxiliary power transformer. Consideration is given to connections that include direct connection and connections through generator circuit breakers and load-break switches. The considerations referred to in this guide apply to hydroelectric and thermal electric generating stations. Various power transformer connections and possible operating problems under normal and abnormal conditions are treated. Phasing procedures, basic impulse insulation level selection, and loading practices are not covered. The terminology, function, application, theory of operation and protection, and design of unit power transformers and unit auxiliary power transformers are not covered by existing transformer standards and guides. The purpose of this document is to provide guidance for specifying, designing, and applying these types of power transformers.
| 术语 | 描述 |
|---|---|
| 反送电 back-feed | Operation of a unit transformer (UT) with the generator disconnected to supply start-up, auxiliary power, or testing power where low magnitude current flows in the opposite direction from normal operation of the transformer. |
| 发电机 generator | A machine that converts mechanical power into electrical power. |
| 站用变压器 station service transformer (SST) | A transformer that supplies power from a station high-voltage bus to the station auxiliaries and also to the unit auxiliaries during unit startup and shutdown or when the unit auxiliary transformer is not available or both. |
| 欠励磁限制器 underexcitation limiter (UEL) | An electronic limiter added to excitation systems to limit the operation of generators in the underexcited region to avoid end iron heating or steady state stability limits. |
| 单元 unit | The generator or generators, associated prime mover or movers, unit auxiliary transformer and unit transformer that are normally operated together as a single source of electric power. |