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Home > products > Permanent Magnet Synchronous Motor > High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed

High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed

Product Details

Place of Origin: China

Brand Name: ENNENG

Certification: CE,UL

Model Number: PMM

Payment & Shipping Terms

Minimum Order Quantity: 1 set

Price: USD 500-5000/set

Packaging Details: seaworthy packing

Delivery Time: 15-120 days

Payment Terms: L/C, T/T

Supply Ability: 20000 sets/year

Get Best Price
Highlight:

High Torque Permanent Magnet Motor

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Permanent Magnet Motor 55kw

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PM Synchronous Motor Low Speed

Name:
Low Speed High Torque 55kw Permanent Magnet Synchronous Motor
Current:
AC
Material:
Rare Earth NdFeB
Power Range:
5.5-3000kw
Voltage:
380v, 660v, 1140v, 3300v, 6kv, 10kv
Energy Efficiency Standards:
IE5
Control Mode:
Variable Frequency Vector Control
Work Mode:
S1
Installation:
IMB3 IMB5 IMB35
Temperature:
-15~+40℃
Name:
Low Speed High Torque 55kw Permanent Magnet Synchronous Motor
Current:
AC
Material:
Rare Earth NdFeB
Power Range:
5.5-3000kw
Voltage:
380v, 660v, 1140v, 3300v, 6kv, 10kv
Energy Efficiency Standards:
IE5
Control Mode:
Variable Frequency Vector Control
Work Mode:
S1
Installation:
IMB3 IMB5 IMB35
Temperature:
-15~+40℃
High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed

Low speed high torque 55kw Permanent Magnet Synchronous Motor

High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed 0

Energy Efficiency Standards
comply with GB30253-1 grade
Work Mode
S1
Altitude
below 1000m
Environmental Temperature
-15~+40℃
Installation Dimensions
comply with IEC standard
Control Mode
variable frequency vector control
Power Range
5.5 〜3000kw
Install Type
IMB3 IMB5 IMB35
Cooling Way
IC411 or IC416
Rated Efficiency
50,75,125,150Hz(customized as per requirement)
Insulation Class
F(H)
Optional Parts
Encoder, spiral transformer, PTC, PT100
Protection Grade
IP54(IP23 customizable)
Wiring Type
junction box (aviation plug can be customized as per requirement)
Installation
IMB3 IMB5 IMB35
Rated Voltage
380V±10%,660V±10%

Required Environment
below 1000m altitude
temperature -15〜45°C
relative humidity below 90%

 

What Is The Permanent Magnet Synchronous Motor?

High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed 1

 

The PERMANENT MAGNET SYNCHRONOUS MOTOR is mainly composed of the stator, rotor, chassis, front-rear cover, bearings, etc. The structure of the stator is basically the same as that of ordinary asynchronous motors, and the main difference between the permanent magnet synchronous motor and other kinds of motors is its rotor.

 

The permanent magnet material with pre-magnetized (magnetic charged) magnetic on the surface or inside the permanent magnet of the motor, provides the necessary air gap magnetic field for the motor. This rotor structure can effectively reduce the motor volume, reduce loss and improve efficiency.

 

Analysis of the principle of the technical advantages of permanent magnet motor

 

The principle of a permanent magnet synchronous motor is as follows: In the motor's stator winding into the three-phase current, after the pass-in current, it will form a rotating magnetic field for the motor's stator winding. Because the rotor is installed with the permanent magnet, the permanent magnet's magnetic pole is fixed, according to the principle of magnetic poles of the same phase attracting different repulsion, the rotating magnetic field generated in the stator will drive the rotor to rotate, The rotation speed of the rotor is equal to the speed of the rotating pole produced in the stator.

High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed 2

 

Due to the use of permanent magnets to provide magnetic fields, the rotor process is mature, reliable, and flexible in size, and the design capacity can be as small as tens of watts, up to megawatts. At the same time, by increasing or decreasing the number of pairs of rotor permanent magnets, it is easier to change the number of poles of the motor, which makes the speed range of permanent magnet synchronous motors wider. With multi-pole permanent magnet rotors, the rated speed can be as low as a single digit, which is difficult to achieve by ordinary asynchronous motors.

Especially in the low-speed high-power application environment, the permanent magnet synchronous motor can be directly driven by a multi-pole design at low speed, compared with an ordinary motor plus reducer, the advantages of a permanent magnet synchronous motor can be highlighted.

High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed 3

 

Detailed pictures
 
High Torque Permanent Magnet Motor 55kw PM Synchronous Motor Low Speed 4
 

Differences Between The Permanent Magnet Motor And Asynchronous Motor

 

01. Rotor Structure

Asynchronous motor: The rotor consists of an iron core and a winding, mainly squirrel-cage and wire-wound rotors. A squirrel-cage rotor is cast with aluminum bars. The magnetic field of the aluminum bar cutting the stator drives the rotor.

 

PMSM Motor: The permanent magnets are embedded in the rotor magnetic poles, and are driven to rotate by the rotating magnetic field generated in the stator according to the principle of magnetic poles of the same phase attracting different repulsions.

 

02. Efficiency

Asynchronous motors: Need to absorb current from the grid excitation, resulting in a certain amount of energy loss, motor reactive current, and low power factor.

 

PMSM Motor: The magnetic field is provided by permanent magnets, the rotor does not need exciting current, and the motor efficiency is improved.

 

03. Volume And Weight

The use of high-performance permanent magnet materials makes the air gap magnetic field of permanent magnet synchronous motors larger than that of asynchronous motors. The size and weight are reduced compared to asynchronous motors. It will be one or two frame sizes lower than asynchronous motors.

 

04. Motor Starting Current

Asynchronous motor: It is directly started by power frequency electricity, and the starting current is large, which can reach 5 to 7 times the rated current, which has a great impact on the power grid in an instant. The large starting current causes the leakage resistance voltage drop of the stator winding to increase, and the starting torque is small so heavy-duty starting cannot be achieved. Even if the inverter is used, it can only start within the rated output current range.

 

PMSM Motor: It is driven by a dedicated controller, which lacks the rated output requirements of the reducer. The actual starting current is small, the current is gradually increased according to the load, and the starting torque is large.

 

05. Power Factor

Asynchronous motors have a low power factor, they must absorb a large amount of reactive current from the power grid, the large starting current of asynchronous motors will cause a short-term impact on the power grid, and long-term use will cause certain damage to the power grid equipment and transformers. It is necessary to add power compensation units and perform reactive power compensation to ensure the quality of the power grid and increase the cost of equipment use.

 

There is no induced current in the rotor of the permanent magnet synchronous motor, and the power factor of the motor is high, which improves the quality factor of the power grid and eliminates the need to install a compensator.

 

06. Maintenance

Asynchronous motor + reducer structure will generate vibration, heat, high failure rate, large lubricant consumption, and high manual maintenance cost; it will cause certain downtime losses.

 

The three-phase Permanent magnet synchronous motor drives the equipment directly. Because the reducer is eliminated, the motor output speed is low, mechanical noise is low, mechanical vibration is small, and the failure rate is low. The entire drive system is almost maintenance-free.

 

Application:

Permanent magnet synchronous motors can be combined with frequency converters to form the best open-loop step-less speed control system, which has been widely used for speed control transmission equipment in petrochemical, chemical fiber, textile, machinery, electronics, glass, rubber, packaging, printing, paper making, printing and dyeing, metallurgy and other industries.