中国电力2012，Vol.45Issue(5)：25-29,5.
变压器抗短路能力核算与治理
Transformer anti-short circuit capability calculation and reinforcement
摘要
Abstract
In order to evaluate and reinforce transformer anti-short circuit capability in North China Grid Company Limited (NCGC), a complete set of transformer anti-short circuit capability calculation and reinforcement method is proposed. Based on the system equivalent impedance, the principle and process of a short circuit current calculation method is discussed and verified with recorded field fault data. The mutual influence of short circuit current in buses and transformer windings is analyzed. The maximum transformer short circuit current level is calculated. The results reveal high risk transformers with low anti-short circuit capability. The main methods to improve transformer anti-short circuit capability are compared and summarized. The principles and implementations are proposed according to different transformer conditions with various operation voltage levels.关键词
抗短路能力/变压器/等值阻抗Key words
anti-short circuit capability/transformer/equivalent impedance分类
信息技术与安全科学引用本文复制引用
邢海瀛,刘少宇,马继先,刘连睿,李雨,龙凯华..变压器抗短路能力核算与治理[J].中国电力,2012,45(5):25-29,5.基金项目
华北电网有限公司重点科技资助项目(HBDWKJ2010-093) （HBDWKJ2010-093）
