YB3 three phase explosion-proof induction motor
Post Message
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YB3 three phase explosion-proof induction motor
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2015-07-14
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Machinery, Mold & Fastener
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Machinery - relative Selling Leads or Buying Leads
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Canada
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Offer to sell
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Construction features
1. The flameproof constructions for Ex d I Mb, Ex d II AT4 Gb, Ex d II BT4 Gb are available.
1)Exd I Mb is applicable for non-excavation area environment under coal mine well with methane or coal dust explosive mixture.
2)Ex d II AT4 Gb,Ex d II BT4 Gb is suitable for Category II, Class A & Category II, Class B, Temperature category T1, T2, T3, T4 at environment with explosive exintence.
2. The degree of protection is IP55 for motor main enclosures.
3. The cooling form is IC411.
4. The stator windings are of Class F insulation and ensures a large margin of safety in temperature rise and long service life.
5. A cylindrical shaft extension is equipped on motors, which is driven by coupling or spur gearing.
6. The stator windings are wound with polyester enamel round wire of high strength and then treated with the progress of vacuum-pressure impregnation (VPI), to make them become a solid integral. Therefore, the winding insulation is excellent in electrical and mechanical properties, moisture resistance and thermal stability.
7. The rotors are of cast-aluminum, and dynamically balanced to make the motor operate smoothly with small vibration and low noise.
8. The stator and rotor cores are laminated with high-class electric steel sheet with high permeability and low loss, thus makes the motors possess low loss and high efficiency.
9. The motors are fitted with low vibration and low noise bearings special for motors. For the motors of frame size 132 and below, bilaterally shielded ball bearings are used and corrugated spring washers at the driving ends pressed on bearings with proper pressure to restrain effectively the vibration and noise produced during motors’ operation. For the motors of frame size 160 and above, the bearings 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.
In order to operate safety and reliably, the bearings of the motors frame size 160 and above are provided with greasing attachments, which are of the use to drain or replenish the lubricating grease without stopping the motors. For the frame size 250 and above, the positions for mounting bearing temperature monitoring censers are preliminary left.
10. Motor fan, air hood: the series motor adopts anti static plastic fan, with small rotational inertia and low loss. The series fan is connected with shaft by key with reliable operation. Air hood is of steel plate structure, it achieves largest ventilation area under the premise of preventing certain sizes of foreign matter from invasion, which obtains smooth air path.
Contact Information
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jining dongda mining machinery co.,ltd
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Canada
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laura hao