核电厂大型主变压器现场过电流试验  

Over Current Site Test of Main Transformer at Nuclear Power Plant

作　　者：周凯[1,2] 吴云飞[1,2] 金雷[1,2] 

机构地区：[1]国网湖北省电力公司电力科学研究院,湖北武汉430077 [2]国家电网公司高压电气设备现场试验技术重点实验室,湖北武汉430077

出　　处：《电力电容器与无功补偿》2016年第2期105-109,共5页Power Capacitor & Reactive Power Compensation

摘　　要：采用电容完全补偿法,对某核电厂安装的500 k V/400 MVA大容量主变压器进行现场工频1.1倍额定电流的过电流试验,大幅降低了所需电源容量,使现场进行此项试验具备了可行性。根据此电容补偿计算结果设计了该变压器现场过电流试验方案,并成功进行了现场试验,试验结果证实补偿效果良好,补偿计算方法准确有效。The overcurrent site test on a 500 k V/400 MVA high power main transformer installed at on nuclear power plant is performed at 1.1 times rated current and power frequency by way of full capaci-tance compensation,thus reducing the power capacity needed dramatically and keeping the test at site feasible. In this paper,the scheme of site over current test for the transformer is designed based on the capacitance compensation calculation result and the site is performed successfully. It is proved by the test result that the compensation result is good and compensation and calculation method is accurate and effective.

关 键 词：变压器 过电流试验 电容补偿 现场试验 

分 类 号：TM623[电气工程—电力系统及自动化] TM406