一、技术背景：
1、HEC提出具体技术要求，按GB7064标准，满足市场需要;
2、HEC bring up special technical requirement according to GB7064 to meet the market exception
3、由日本东芝公司根据中国市场的需求，量身设计的机型，并已通过工厂的型式试验;
4、Toshiba Japan co. design the generator according to the Chinese market requirement and make sure the production go through type tests
5、HEC引进东芝公司的制造技术。
6、HEC inport the manufacture technology from Toshiba
二、技术特点：
1、紧凑设计：
（1）采用大直径转子，端盖式轴承，降低总体长度,转子总长不足9.5m,发电机总体长度为10.85m。
using large diameter rotor, end bracket type bearing to reduce whole generator length, rotor length is less than 9.5m while the whole length of generator is 10.85m
（2）与同容量氢冷机相同,远小于同行业其他厂产品长度尺寸,可有效减小厂房长度,降低工程造价。
generator dimension is much more smaller camparing with the same volume generator made by other manufactures and could reduce the factory length effectively to lower the cost
2、高效率：
转子采用光滑的外表面,等截面高效风扇(航空技术),可有效减少风摩耗,小直径集电环(Ф337),减少摩擦损耗;定子铁心采用高导磁有取向硅钢片,减少铁耗,使发电机效率高达98.77%,接近氢冷机98.8%的水平。
smooth outside surface, uniform section high effciency fan (used in aerotechincs) can reduce wind loss; small collecting ring diameter (φ337) reduce friction loss; stator core use high permeablity oriented silicon steel sheet to lower core loss; the generator effciency is 98.77% almost near the 98.8% hydrogen cooled generator.
3、通风散热：
（1）定子采用3进4出多路通风，空气表面冷却，转子采用副槽内冷通风(端部一路半通风),控制总风量，优化风量分布。
stator is 3-inlet-4-outlet multichannel ventilation of surface cooling; rotor is subslot ventilation (rotor end is one and a half way ventilation) to optimize wind distribution by controling volume
（2）全封闭通风冷却，补风处配置空气净化器以杜绝灰尘侵入防止灰尘进入。
ventilation duct is entirely sealed while there is air cleaner at the compensation place to keep dust out
