10kV Explosion-proof Permanent Magnet Synchronous Motor
Product specification
| EX-mark | EX db IIB T4 Gb |
| Rated voltage | 10000V |
| Power range | 220-1250kW |
| Speed | 500-1500rpm |
| Frequency | Industrial frequency |
| Phase | 3 |
| Poles | 4,6,8,10,12 |
| Frame range | 400-560 |
| Mounting | B3,B35,V1,V3..... |
| Isolation grade | H |
| Protection grade | IP55 |
| Working duty | S1 |
| Customized | Yes |
| Production cycle | Standard 45days, Customized 60days |
| Origin | China |
Product features
• High efficiency and power factor.
• Permanent magnets excitation, do not need excitation current.
• Synchronous operation, there is no speed pulsation.
• Can be designed into high starting torque and overload capacity.
• Low noise, temperature rise and vibration.
• Reliable operation.
• With a frequency inverter for variable speed applications.
Product Application
The series products are widely used in various equipment such as fans, pumps and belt machines in petrochemical, steel, aluminium processing, grain and oil, feed and other fields.
FAQ
Principle of permanent magnet synchronous motor and starting method?
As the stator rotating magnetic field speed is synchronous speed, while the rotor is at rest at the instant of starting, there is relative motion between the air gap magnetic field and the rotor poles, and the air gap magnetic field is changing, which cannot produce an average synchronous electromagnetic torque, i.e., there is no starting torque in the synchronous motor itself, so that the motor starts on its own.
In order to solve the starting problem, other methods must be taken, commonly used:
1.frequency conversion starting method: the use of frequency conversion power supply to make the frequency slowly rise from zero, the rotating magnetic field traction rotor slowly synchronous acceleration until it reaches the rated speed, starting is complete.
2.asynchronous starting method: in the rotor with a starting winding, its structure is like the asynchronous machine squirrel cage winding. Synchronous motor stator winding connected to the power supply, through the role of the starting winding, generating starting torque, so that the synchronous motor to start by itself, when the speed up to 95% of the synchronous speed or so, the rotor is automatically drawn into synchronization.
Classification of permanent magnet motors?
1.According to the voltage level, there are low-voltage permanent magnet motors and high-voltage permanent magnet motors.
2.According to the rotor structure type, it is divided into caged permanent magnet motor and cage-free permanent magnet motor.
3.According to the installation position of permanent magnet, it is categorized into surface-mounted permanent magnet motor and built-in permanent magnet motor.
4.According to the starting (or power supply) method, they are classified into direct-start permanent magnet motors and frequency-controlled permanent magnet motors.
5.According to whether explosion-proof, divided into ordinary permanent magnet motor and explosion-proof special permanent magnet motor.
6.According to the transmission mode, it is categorized into geared transmission (ordinary permanent magnet motor) and gearless transmission (low and high speed direct-drive permanent magnet motor).
7.According to the cooling method, it is divided into air-cooled, air-air-cooled, air-water-cooled, water-cooled, oil-cooled and so on.
