Explosion Proof asynchronous electric motors

4. Normal working conditions: The altitude is not higher than 1000m above sea level. The ambient temperature,which is subject to seasonal variation ,but no more than 40^oC.

3.Operation mode:Continuous running duty-type S1

2.Rated frequency :50Hz

1.Rated voltage: 220V.380V.660V.380/660V.

Service conditions

6.The series motors are provided with low noise and low vibration bearings special for motors.The bearing with inner and outer covers are used and retaining rings at bearing position are equipped on shafts to prevent the rotor efficiently from moving axially.

5.The rotors are of cast-aluminum, and dynamically balanced to make the motor operate,smoothly with small vibration and low noise.

4.The sator windings are wound with polyester enamel round wire of high strength and then treated with progress of vaccum-pressure impregnation(VPI), to make them become a solid integral .Therefore, the winding insulation is excellent in electrical and mechanical properities ,moisture resistance and thermal stability.

3.The stator windings are of class F insulation and such feature can ensure a large margin of safety in temperture rise and long service life.

2.The cooling form of the motors: IC411

1.Protection degree of motors :IP55 ( Junction box:IP55)

 Construction Features

         YB2 series flame-proof  motors are the basic series motors developed,,designed and manufactured into total-enclosed self-fan-cooled squirrel-cage high-efficiency explosion-proof three-phase asynchronous by our company.This series motors have many remarkable features such as excellent performance,reliable operation,vibration and noise values lower than the like products etc,and confirm to environmental requirements