介绍了某公司220 MW机组电动给水泵的变频改造方案，总结了该公司给水泵改造后运行的实践经验，提出保障给水泵安全经济运行的维护措施。%By introducing the scheme for the frequency conversion renovation of the electrically driven feed pump of the 220MW unit in a company,this article sums up the practical experience of its operation after the renovation as well as giving relevant maintenance measures of ensuring its secure and economical operation.
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