方昌勇,陈更
FANG Chang-yong,CHEN Geng(Zhejiang Energy Lanxi Power Generation Co.

• 1:浙能兰溪发电有限责任公司

摘要(Abstract)：

对火力发电厂循环水泵电机双速改造的节电原理和改造方法进行探讨,解决电机低速Δ接线时的差动保护配置问题,并对改造后的电机节能效果进行分析。
The paper discusses the energy saving principles and the implementation method of dual-speed transformation of circulating water pump motor in thermal power plants,solves the problem of differential protection configuration for low speed Δ-connection of motor and analyzes the effect of motor energy saving after the transformation.

关键词(KeyWords)： 循环水泵;电动机;双速;改造;差动保护
circulating water pump;motor;dual-speed;transformation;differential protection

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 方昌勇,陈更
FANG Chang-yong,CHEN Geng(Zhejiang Energy Lanxi Power Generation Co.

DOI: 10.19585/j.zjdl.2011.12.021

参考文献(References)：

• 王毓东.电机学[M].杭州:浙江大学出版社,1990.
• 凌勇坚.三相笼型异步电动机单速改双速[J].电世界,2003,44(4):44-45.