The optimal design of large transformers with combinatorial optimization and with the reactance voltage drop as the constraint is described.
本文运用组合优化方法进行大型变压器的优化设计，提出了电抗约束判别条件。
The step up transformers for Three Gorges project are EHV extra large transformers. Their reliability will affect the economic benefits of the project directly.
三峡电站升压变压器属于超高压特大型变压器，它的安全可靠性直接影响三峡电站的经济效益。
Through the analysis of some neutral-point insulation faults of large transformers, the necessity of on-site examination on neutral-point insulation of large transformers is discussed.
笔者通过对几例大型变压器中性点绝缘故障实例的分析，说明了现场考核变压器中性点绝缘的必要性。
Through the analysis of some neutral-point insulation faults of large transformers, the necessity of on-site examination on neutral-point insulation of large transformers is discussed.
笔者通过对几例大型变压器中性点绝缘故障实例的分析，说明了现场考核变压器中性点绝缘的必要性。
应用推荐