On September 2, 2026, the State Grid Sanmenxia Power Supply Company sent a written letter of thanks.
- Sudden failure, an urgent moment before the school reopening season
On August 31st, an abnormal protection action occurred in a set of ring main unit lines of the Sanmenxia power grid, causing a trip of the loop equipment. It was the back-to-school season, and a prolonged power outage would directly affect the start of the school year and the daily lives of the surrounding residents.
- Rapid response, our operation and maintenance personnel are on site
After the failure occurred, State Grid Sanmenxia Power Supply Company immediately dialed our 24-hour maintenance hotline. Our team quickly arrived at the scene, accurately identified the deviation in protection parameters, and swiftly completed the disposal and restoration of power supply.
- After the power is restored, the guard does not end
After the power was restored, the operation and maintenance personnel did not evacuate immediately. Instead, they conducted two rounds of comprehensive retesting and operational maintenance on all electrical equipment in the area, and only left after confirming that everything was stable.
“The successful handling of this emergency event has laid a more solid foundation for the further deepening of cooperation between both parties.” The letter of thanks is not only an affirmation but also an encouragement. Zhejiang Nanyoung Power Transmission and Distribution Equipment Co.,Ltd. will, as always, maintain its high-quality service standards and work together with customers to safeguard the long-term safe and stable operation of the power system. Once again, we thank State Grid Sanmenxia Power Supply Company for its trust and recognition!
