一、型号定义 Mdoel definition
例：GFD470-150
表示单相220V；风机名誉总长470mm；风轮直径为Φ150mm的侧吹式干式变压器用横流式冷却风机。
For example:GFD470-150
Representing single-phase 220V side blowing type cross cooling blower for dry transformer with the total length of blower of 470mm and the diameter of wheel of Φ150mm
二、性能参数 Specification 三、顶吹式风机外形、安装尺寸和接线图
The appearance、installation dimension and wiring diagram for Top blowing type 四、使用与维护Application and maintenance 1、本产品配用电源必须符合风机铭牌标示的额定参数；电机过载保护装置请用户自行配置。
Power should be conformed with the rated parameter of blower Nameplate; overload protection device of motor is equipped by user.
2、风机使用前要测试绝缘电阻，阻值应大于2兆欧；热态或温度较大时，绝缘电阻应不低于0.5兆欧。
Please test the insulation resistance before application; the value should be over 2MΩ,and it cannot be less than 0.5 MΩ when thermal state or temperature is higher.
3、风机启动前请检查外观是否完好，连接是否可靠，风轮转动应灵活无阻滞，如发现异常请立即停车检查。
Before operating the blower, please check the blower whether the outlook is fine and the connection is reliable or not; wind wheel spinning well without retardance, otherwise, stop operation and exam it immediately.
4、建议每周至少通电运行一个小时，防止电器元件受潮及润滑脂凝固，并清除风机内部积尘，若使用环境温度较低或温度较大时，应适当增加开机次数或通电时间。
User had better operates it not less than an hour per week to avoid components damping and grease lubricant freezing, and it can also clean the inner dust. It should be operated several times if working environment temperature is lower or higher.
5、我公司产品如有质量问题，一年内实行三包。
It can be repaired, exchanged and returned repaired in a year if the product with quality problems. | 
