On the 17th, with the completion of the last power transmission operation order, the power transmission operation of the No. 3 main transformer of the Tianjin 1000 kV UHV Haihe Substation was completed, and the equipment was running smoothly. The key landing point of the country's “west-to-east transmission” energy artery completed the first UHV key maintenance task after peak summer.

On the 17th, with the completion of the last power transmission operation order, the power transmission operation of the No. 3 main transformer of the Tianjin 1000 kV UHV Haihe Substation was completed, and the equipment was running smoothly. The key landing point of the country's “west-to-east transmission” energy artery completed the first UHV key maintenance task after peak summer.