Belt conveyor Mine explosion proof permanent magnet Synchronous Motor
Product introduction
PMSM has the advantages of simple structure, small size, high efficiency and high power factor.
The permanent magnet synchronous motor adopts centralized winding, optimal pole slot coordination, and rotor structure integrating isolation, stress, positioning and lightweight, with small rotational inertia, small leakage flux, large main flux, higher power factor and higher efficiency. The torque amplifier coupled with the permanent magnet motor (planetary reducer) has the characteristics of increasing the output torque, matching the load inertia, and exclusive use of multi-tooth meshing. Under the control of frequency converter, when the permanent magnet motor is interconnected with multiple machines, it is easy to realize power balance control due to the soft mechanical characteristics.
Technical parameters
Rated working voltage: AC 1140V
Rated output power: 800kW
Number of motor poles: 20
Rated operating frequency of the motor 60Hz
Rated output speed of the motor: 80r7min
Cooling method: water cooling
Insulation grade of motor winding: class H
Motor power factor: 0.93
Motor efficiency: 96.2%
Motor rated current: 432A
Explosion-proof forms: Exd I Mb
Motor noise: w102dB
Motor vibration: w2.3mm/s
Overall size: 2613x1180x1135
Technical advantages and main features
- Optimized water, magnetic and circuit design, so that the motor has good electrical performance, low electromagnetic noise, super efficient energy saving;
- 3d software design, supplemented by ANSYS analysis software, finite element analysis of electromagnetic field, structure field, temperature field, etc., to ensure the high reliability of the motor. Compact structure, small size, improve the utilization of effective space underground;
- With solid magnetic pole structure, it can be used to drive sintering machine in steel plant, fan driven by mine, scraper, belt conveyor and other large moment of inertia load;
- At the rated voltage, the out-of-step torque of the motor is not less than 2 times the rated torque;
- The rotor is a silicon steel laminated and magnetic steel integral embedded structure, which can ensure the mechanical reliability of the magnetic steel under the action of centrifugal force and magnetic tension when the rotor rotates;
- The stator adopts h-class insulation, the whole stator vacuum pressure immersion h-class solveless paint, with good electrical performance and moisture-proof performance, the stator adopts advanced processing technology, compact structure, low stator iron consumption;
- The rotor permanent magnet adopts high- performance ndfeb magnetic steel, which has ultra-high magnetic, anti-demagnetization ability and high temperature resistance, which can ensure the electromagnetic reliability of the motor in long-term operation;
- Maintenance free, improve production efficiency, reduce maintenance cost and reduce maintenance time;
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