摘要
特高压晋东南(长治)变电站1000kV变压器由主体变、调压补偿变两台变压器通过管母连接组合而成,因其结构以及变压器差动保护极性要求的独特性,特高压变压器保护与传统变压器保护相比也具有一定的特殊性,且需要解决变压器档位变换引起的调压变绕组TA极性变化的问题。文章介绍了特高压变压器保护的配置及差动保护原理,并且主要针对1000kV变压器保护装置的电流极性进行详细的现场调试分析,调试结果证明特高压变压器的结构满足现场保护对TA极性的要求。
The 1000kV transformer of UHV substation is composed of the main transformer, the regulating transformer and compensated transformer; Because of its special structure, the protection of HUV Transformer is different from conventional transformer, and the problem of TA polarity change of the tap-changing windings caused by the change of transformer tap position must be resolved. The principle and scheme of UHV Transformer protection are introduced in this paper, and the TA polarity of the 1000kV transformer protector is debugged and analyzed; the test results prove that the TA polarity of HUV Transformer protector meets the need of on-site protection.
出处
《电气技术》
2013年第8期40-42,47,共4页
Electrical Engineering
关键词
特高压变压器
调压补偿
差动保护
TA极性
HUV Transformer
voltage regulation and compensation
differential protection
TA polarity
