<p align="center"><font face="Verdana">超超临界机组发电机变压器组保护探讨 <br/>严 伟，陈 俊，沈全荣 <br/>南京南瑞继保电气有限公司，江苏省南京市 211102 <br/>Discussion on protection of ultra-supercritical generator-transformer unit <br/>YAN Wei, CHEN Jun, SHEN Quan-rong <br/>NARI-RELAYS ELECTRIC CO.,LTD, NanJing 211102 </font></p><font face="Verdana">
<p><br/>摘 要：本文介绍了超超临界机组的特点以及对发电机变压器组保护的影响，并从内部故障保护性能的提高、TA 饱和的判别、停机状态下定子转子绝缘的检测等多个方面阐述了针对超超临界机组保护的关键技术。 <br/>关键词：超超临界机组；发电机变压器组；继电保护装置 <br/>Abstract: This article introduces the characteristics of ultra-supercritical generator-transformer unit, which affect the protections.At the same time, some key technologies are explained, including how to improves the sensitivity and reliability of internal fault protection, the method of TA saturation recognition and the inspection of generator insulation without excitation, etc. <br/>Key words: Ultra-supercritical Generating Unit, generator-transformer unit, protection </p>
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