タイトルまたは説明

1.With speed negative feedback automatically regulated, its speed rate of change: the first step<1.8%and the second step<2.5%. 2.Without runaway area of speed with techogenerator gauging speed. 3.Stable adjustable operating speed and wide range of adjustable speed, reaching *0:1 ***** starting performance, smooth start and large moment. 5.Simple reliable structure and convenient maintenance. 6.Small power of controlling speed and easy to control in many ways. Operating Condiyions: Ambient temperature: **5℃≤θ≤*0℃ Above sea level: not exceed ***0m Rated voltage: ±5%