特高压直流试验线段的功能与方案设计

介绍了特高压直流试验线段的主要功能，提出了特高压直流试验线段的技术方案，主要包括试验线段长度、门型构架、锚塔、换极性塔和终端塔的结构型式和功能、引流线尺寸、跳线方式、金具、绝缘子以及主要设备的选型和参数。阐述了在特高压直流试验线段设计中如何实现各种技术要求。结果表明，已建成的特高压直流试验线段完全满足所需功能要求，已具备开展±1 200 kV以下各电压等级单回/同塔双回直流线路电磁环境试验研究能力。

Functions and Design of Scheme of UHVDC Test Line

The main function of UHVDC test line was introduced, and the technic scenarios was put forward, including the length of test line, the configuration and function for the gantry tower, the anchor tower, the polarity-converting tower and the terminal tower, the selection and parameters for the size of draught conductor, jumping wire style, hardware, and insulator and other installations. The realization for different technic requirements during the design stage was expressed. The results show that the UHVDC test line can fully satisfy the function requirement, and the electromagnetic environment tests for single/double-circuits DC line at different voltages could be carried out below ±1 200 kV.