针对目前普遍采用的水氢氢发电机机型，本文通过介绍双水内冷和全空冷两种不使用氢气作为冷却介质的发电机机型，并通过技术经济比较，分析了在350MW和660MW等级上选择无氢气冷却介质发电机机型的可行性。%This paper introducted dual internal water cooled generator and air cooled generator, and analysed the practicability of those two type generators instead of water-hydrogen cooled generator. through the technical and economic comparison in 350MW and 660MW.
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