11月25日18时,1 000 kV晋东南—南阳—荆门特高压交流试验示范工程扩建工程成功完成第一阶段大负荷试验,在450万kW功率下累计运行8 h,最大输送功率503万kW,系统、设备稳定可靠,现场工作已全面纳入运行管理。当天,南阳、长治、荆门、国调中心4个启动调试现场指挥部联合召开第五次电视电话会议。会上,中国 At 18:00 on November 25th, the first phase of large-scale load expansion test of 1 000 kV Jindongnan-Nanyang-Jingmen UHV AC pilot demonstration project was completed successfully at 18:00 on November 25, with a total operation of 8 h at a power of 4.5 million kW and a maximum transmission power of 5.03 million kW The system and equipment are stable and reliable. The on-site work has been fully integrated into the operation and management. On the same day, Nanyang, Changzhi, Jingmen, and the National Center for Reconciliation launched the fifth teleconference jointly with the four on-the-spot commissioning headquarters. At the meeting, China