新建火电机组电气设计需注意的问题

Problems needing attention in electrical design of new-built thermal power unit

针对300 MW及以上火电机组运行投产后电气方面存在的设计不合理、不利于检修及运行、耗能高等问题,以天津军粮城发电有限公司新扩建机组为例,提出了保安电源、高压电动机、氢冷发电机、低压动力中心等设计时需要注意的问题,同时指出施工前应加强设计图纸的审查、重视设备的出厂验收,确保机组安全、稳定运行。

There are some problems in electrical design of 300 MW and above thermal power units,which include the unreasonable dsign, the high energy consumption and non-convenience for operation and overhaul. Taking the new-built unit of Tianjin Junliangcheng Power Generation Company Limited as example,the problems needing attention in design of the security power,the high-voltage motor,the hydrogen-cooled generator and the low-voltage power center were put forward. At the same time,it was pointed out that before construction,the examining of the design drawing must be strengthened,and more attention must be paid to the leave-factory check and acceptance of the equipment for ensuring the unit to operate safely and stably.