If the wind temperature of the generator is too high, the stator coil temperature, iron core temperature and rotor temperature will increase accordingly, which will weaken the insulation and weaken the mechanical strength, shortening considerably the life of the generator, and in severe cases, causing damage to the insulation of the generator, breakdown, causing accidents if the wind temperature is too low, condensation will easily occur and droplets of Water will condense on the generator coil, reducing the insulation capacity and threatening the safe operation of the generator. the generator.
For synchronous generators with closed-cycle ventilation and cooling, the main cause of hydrogen cooler condensation is: the gas filled after overhaul of the generator and the gas filled during operation contain a excess water vapor, and the temperatureThe temperature of the chiller inlet water is low, and the dust particles attached to the surface of the chiller condense into water droplets, especially when the difference between the chiller cooling water temperature and the temperature wind speed from the generator is large.