With the arrival of high-temperature weather in summer, the power grid load continues to rise. As the core equipment for power transmission, the safe operation of oil-immersed transformers is directly related to the power consumption of residents and the production safety of enterprises. Recently, power departments in many regions such as Beijing, Guangdong and Zhejiang have successively carried out special safety inspection actions on oil-immersed transformers to comprehensively investigate potential equipment safety hazards and build a solid defense line for summer power supply safety.

At the inspection site, the staff used various technical means such as infrared temperature measurement, partial discharge detection and oil quality analysis to conduct a comprehensive "physical examination" on oil-immersed transformers in key areas such as substations, industrial parks and residential communities within the jurisdiction. The key inspections include whether the oil temperature and oil level of the transformer are normal, whether there is overheating in the insulating bushings and lead joints, whether the cooling system operates stably, and whether fire prevention, explosion prevention and other safety measures are in place. For the hidden dangers found in the inspection, the staff have established detailed accounts and implemented the "one hidden danger, one policy" principle. Those that can be rectified on the spot are rectified immediately; for those that cannot be rectified on the spot, a rectification plan is formulated, clarifying the responsible person and the time limit for completion, to ensure the closed-loop management of hidden dangers.

The power department reminded that in the high-temperature environment in summer, oil-immersed transformers are prone to failures due to excessive load and poor heat dissipation. Enterprises and residents should arrange electricity use reasonably to avoid overloaded electricity consumption. If abnormal noise, peculiar smell, oil leakage and other conditions of the transformer are found, they should immediately call the power service hotline for repair, and must not approach or handle it without authorization to ensure electricity safety.