【摘要】 高压出线绝缘结构是超、特高压交流变压器主绝缘结构的重要组成部分,直接影响变压器整体的电气性能、制造成本、生产周期和装配的工艺性等多个方面。因此超、特高压变压器出线绝缘结构的研究和优化设计、国产化制造对于提高变压器的绝缘可靠性、经济性和整体制造水平有着重要的工程应用价值。为此,在介绍大型变压器出线绝缘结构的基础上,采用有限元法进行绝缘出线结构电场分析计算,给出优化设计结果和工程应用实例,长期安全运行及产品试验结果验证了优化设计的可靠性和可信性。针对国内1700、750和500 kV变压器出线装置的研发过程进行了深入的探讨,分析了超、特高压变压器出线装置国产化的可行性及其今后的发展趋势。更多还原

【Abstract】 The high voltage exits insulation structure is an important part of the extra-high voltage(EHV) and ultra-high voltage(UHV) transformer major insulation structure.Based on the exits insulation structure of existing large transformer,computation and analysis were performed to the electrical field by means of the finite element method,and the optimized design results and practical engineering application were shown in examples.The R&D process was discussed for the barrier systems used in the 1700 kV,750 kV and 500 kV transformers in China.The feasibility of the localization production of barrier system of EHV and UHV transformer,as well as its developing trend in the future,was analyzed.更多还原