核电百万千瓦发电机整组启动调试技术改进与实施

某在建核电项目以岭澳二期为依托,同样采用百万千瓦汽轮发电机组技术,但其设备选型存在诸多差异,发电机整组启动面临新的困难。调试人员通过深入分析,解决了励磁变接入时机、定子接地保护验证窗口、主变差动校验方法等问题,并提出了一种新的发电机整组优化方案,在该项目1~4号发电机组实践的基础上,最终形成本文,供我国核电百万千瓦级发电机组整组启动参考。

Start-up Commissioning Technology Improvement and Implementation for 1000MW Generator in Nuclear Power Project

A nuclear power project taking Ling'ao phase Ⅱ as reference,applied the same 1000MW generator technology,but chose some different equipment.Through in-depth technical analysis,test personnel solved many problems such as when the excitation transformer joined in,how to do the stator earth fault and main-transformer differential protection tests,and proposed a new start-up commissioning method,this paper was written on the basis of the practice of units 1～4,which is a reference for the whole set of the 1000MW half speed generator.