我国水电的年发电量目前～20％,今后会逐步提高。由于水电成本低,如能多发电,即可替代低效火电机组。这样,节省的燃料,可支援供应火电厂主力机组的燃料,提高能源利用率。 1981年我国水电年发电量656亿度,如把发电机损失能有效回收50％,则相当于多发3.31亿度电,把发电机冷却介质(空气、氢气)进风温降低到15℃,以提高发电机出力 China’s annual hydropower generation capacity currently ~ 20%, will gradually increase in the future. Due to the low cost of hydropower, if more power generation, you can replace inefficient thermal power units. In this way, the fuel saved can support the fuel supply to the main unit of the thermal power plant and improve the energy efficiency. In 1981, hydropower generated 65.6 billion kilowatt-hours in our country. If the loss of generator can be effectively recovered by 50%, it is equivalent to the multiple electrification of 331 million kilowatts, reducing the temperature of generator cooling medium (air and hydrogen) to 15 ℃ Increase generator output