YVFE2系列变频调速三相异步电动机是以变频器为供电电源的变频调速三相异步电动机。通过改变电源频率实现平滑地调节电动机的转速，达到节能和控制自动化的目的。

YVFE2系列电动机效率高，调速范围广，精度高，运行稳定，操作和维修方便，其安装尺寸符合国际电工委员会（IEC）标准，外壳防护等级为IP54、IP55，定额是以连续工作制（S1）为基准的连续定额。也可以运行在S3、S4、S5工作制下，其基本结构及安装形式为B3、B5、B35。

YVFE2电机为外置冷风机YVFE2系列电动机的额定电压为380V。额定频率为50Hz，可以在3~100Hz范围内连续调速，3~50Hz为恒转矩运行，50~100Hz为恒功率运行。电机采用F级绝缘。

YVFE2系列电动机适用于驱动轧钢、起重、运输、机床、印染、造纸、化工、纺织、制药等要求连续和频繁正反转的各种机械设备上。可与国内外各种变频电源配套使用。

YVFE2电机的接线，功率在55KW以下为Y接法，功率在55KW以上为△接法。

使用条件：

执行标准：JB/T 7118

中心高：H90-355

额定电压：380V

额定频率：50Hz

变频范围：5-50Hz恒转矩运行

50-100Hz恒功率运行

绝缘等级：F级

防护等级：IP54

冷却方式：IC416

海拔高度：不超过1000m

环境温度：-15℃~+40℃

YVFE2 series three-phase asynchronous motor with frequency conversion and speed regulation is a three-phase asynchronous motor with frequency conversion as power supply. By changing the frequency of power supply, the speed of motor can be adjusted smoothly to save energy and control automation.

YVFE2 series motors have high efficiency, wide speed range, high precision, stable operation and convenient maintenance. Its installation size conforms to IEC standards. The shell protection level is IP54 and IP55. The quota is a continuous quota based on continuous working system (S1). It can also run under the working system of S3, S4 and S5. Its basic structure and installation form are B3, B5 and B35.

The rated voltage of YVFE2 motor is 380V for YVFE2 series motor with external cooling fan. The rated frequency is 50Hz, which can be adjusted continuously in the range of 3-100Hz, running at constant torque at 3-50Hz and constant power at 50-100Hz. The motor adopts F class insulation.

YVFE2 series motors are suitable for driving rolling, lifting, transportation, machine tools, printing and dyeing, papermaking, chemical industry, textile, pharmaceutical and other mechanical equipment requiring continuous and frequent positive and negative inversion. It can be used with all kinds of variable frequency power supply at home and abroad.

The connection of YVFE2 motor is Y connection with power below 55KW and delta connection with power above 55KW.

Conditions of use:

Implementation criteria: JB/T 7118

Center height: H90-355

Rated voltage: 380V

Rated frequency: 50Hz

Frequency Conversion Range: 5-50Hz Constant Torque Operation

50-100Hz Constant Power Operation

Insulation Class: F Class

Protection Level: IP54

Cooling mode: IC416

Elevation: no more than 1000M

Ambient temperature: - 15 +40.