YZTD Variable Poles Multi-speed Three-phase Motor for Tower Crane

YZTD Series is specially developed for tower crane and other construction machinery electric drives. It is up to the demand of  national standard GB755-87"the basic technology demand of rotary electric motor"and industrial standard "YZTD variable poles multi speed three-phase motor for tower crane". The product's features are high speed ratio, low starting current, high starting torque, strong overload capacity, simply operation and convenient maintenance, etc.

YZTD type has the characteristics of big speed ratio, small starting current, large starting torque, strong overload capacity and so on. As the motor is a squirrel cage rotor motor uses advanced technology of speed regulating by far pole change, there is no brush device which is easy to be worn and torn, also no additional speed-adjusting device. So it is easy to be handled and maintained.

Detailed information:

• ·         Power range: 0.5-315kw.
• ·         Poles: 4/8.
• ·         Protecting level: IP44/IP54
• ·         Cooling way: IC411.
• ·         Installation way: B3 or customization.
• ·         Rated voltage: 380v / 440v.
• ·         Rated frequency: 50Hz/ 60Hz.
• ·         working method: high speed, medium speed S3-40%, low speed S3-25%.
• ·         Working temperature: F:-20°c to 40°c, H:  -20°c to 60°c .
• ·         Altitude:  lower than 1000m. 
• ·         Addition: Can be made according to your requirements

Technical Peremeter: