Air coolers are installed for cooling purposes.
Principle
Due to the loss of copper and iron when the generator works, the temperature of the iron core and coil will gradually increase. In order to reduce the aging rate of the coil insulation and prolong its service life, the temperature of the coil should not exceed a certain value, for example 100°C. Therefore, measures should be taken to discharge the heat generated by the coil and the iron core in time to maintain the temperature of the coil insulation not exceeding the specified value. The most commonly used cooling methods include air cooling, hydrogen cooling, and water cooling. Although the effect of air cooling is poor, the air cooling equipment is simple and reliable, so it is widely used in power groups.medium and small sized trogens.
The function of the chiller
The air cooler uses cooling water to cool the higher temperature air coming out of the generator, then sends it into the generator . In fact, when the generator operates, the heat generated is removed by the cooling water, and the air only acts as a fluid.
Due to the poor air cooling effect, large generators often use hydrogen cooling and water cooling with good cooling effect.