主变冷却系统控制回路的隐患及消除办法

Incipient Fault and Improvement Plan for Main Transformer Cooling System Control Circuit

对秦皇岛发电有限责任公司4台主变冷却系统的控制回路进行了分析,指出了原设计中存在两个较大的缺陷,对机组安全、稳定运行构成隐患。提出了消除设计缺陷的具体方法,以避免由此引发的故障。

Based on the analysis of the four main transformer cooling system control circuits in Qinhuangdao Power Generation Co. Ltd. , the writer indicated two major deficiencies of the original design, which might lead incipient fault for unit safety and operation. In order to avoid the error, the corresponding improvement plan has been introduced in the article.