大容量变压器有载调压装置的现场改造

On- load Tap Changer On- Sites Retrofitof Large Power Transformer

通过对大容量无载变压器各种改造方案的经济技术分析,认为采用高压绕组尾端串联调压变压器进行有载调压改造是一种经济可靠的方案,同时对改造过程中的一些技术措施进行了论述,提出的三相中性点端共体套管在变压器有载改造中具有较高的推广价值。

Through economic and techmical analysis of large transformer retrofit,to adopt the scheme of high voltage winding tail connecting in series with a voltageregulating transformer to be an on- load tap changer transformer is economic and reliable.Some technical measures of the retrofitpro- cess are presented in thispaper,and the three- phase integrated bushing atneutral pointforthis modi- fication is valuable forpopularizing [