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 10: 1
4. Good 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: -15 Centidegree&le;θ&le;40 Centidegree
Above sea level: not exceed 1000m Rated voltage: + - 5%