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Home > products > Permanent Magnet Synchronous Motor > 380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box

380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box

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:

380V Permanent Magnet Synchronous Motor

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4 Poles Permanent Magnet Synchronous Motor

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Permanent Magnet Synchronous AC Motor

Name:
Permanent Magnet Synchronous AC Motor
Current:
AC
Power Range:
5.5-3000kw
Voltage:
380v, 660v, 1140v, 3300v, 6kv, 10kv
Energy Efficiency Standards:
Comply With GB30253-1 Grade
Control Mode:
Variable Frequency Vector Control
Work Mode:
S1
Material:
Rare Earth NdFeB
Name:
Permanent Magnet Synchronous AC Motor
Current:
AC
Power Range:
5.5-3000kw
Voltage:
380v, 660v, 1140v, 3300v, 6kv, 10kv
Energy Efficiency Standards:
Comply With GB30253-1 Grade
Control Mode:
Variable Frequency Vector Control
Work Mode:
S1
Material:
Rare Earth NdFeB
380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box

380v 4 poles Permanent Magnet Synchronous Motor Without Gear Box

380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box 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?

380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box 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.

380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box 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.

380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box 3

 

Detailed pictures
 
380V 4 Poles Permanent Magnet Synchronous Motor Without Gear Box 4
 

There are many ways to start a permanent magnet synchronous motor, including direct start, self-coupling decompression start, Y-Δ decompression start, soft start, inverter start, etc. So what's the difference between them?

 

1. When the grid capacity and load allow full voltage direct start, full voltage direct start can be considered. The advantages are convenient operation and control, simple maintenance, and high economy. It is mainly used to start small power motors.

 

2. The automatic transmission starts using the multi-touch of the automatic transmission to reduce the pressure, which can not only meet the needs of different loads but also the starting torque will be larger. It is a decompression starting method and is often used to start high-capacity motors.

 

3. Y-Δ starts to run normally. The squirrel cage asynchronous motor is wound and connected to the delta stator. If the stator is wound into a star when starting, and then connected to the delta after starting, the starting current can be reduced and the impact on the power grid can be alleviated. This start-up mode is referred to as a star-delta decompression start, or star-delta start (Y-delta start). It is suitable for no-load or light-load starting. Compared to any other decompression starter, it has the simplest structure and is also less expensive. In addition, the star-delta starting mode has another advantage, that is, the permanent magnet synchronous motor can be operated in star-connected mode when the load is light. At this time, the rated torque and load can be matched, thereby improving the efficiency of the motor and saving power consumption.

 

4. The soft starter adopts the phase-shift voltage regulation principle of the silicon-controlled rectifier to realize the voltage regulation start of the motor. It is mainly used for starting control of permanent magnet synchronous motor, with good starting effect and high cost.

 

5. The frequency converter is a motor control device with the highest technical content, the most complete control functions, and the best control effect in the field of modern motor control. It adjusts the speed and torque of the permanent magnet synchronous motor by changing the frequency of the power grid, and it is mainly used in fields that require high requirements for speed regulation and high-speed control.

Decompression start, a common star-delta start, the disadvantage is that the starting torque is small, only suitable for a no-load or light-load start. The advantage is that it is cheap. Soft start, you can set the start time and the initial torque of the starting equipment, realize a soft start and soft stop and can limit the starting current, the price is moderate. Frequency conversion start, start smoothly according to the set time and let the equipment run at the set frequency, the price is high.

 

The characteristics and advantages of permanent magnet motors

Motor From the source of excitation can be divided into two categories: permanent magnet motor, and electric excitation motor. A permanent magnet motor is an electric motor that produces an excitation magnetic field from a permanent magnet. The most widely used three-phase asynchronous motors in industry and civil use, such as Y-Series, Y2-Series, YE2-Series, YX3 Series, Series YB, series YB2 series, etc. all belong to electric excitation motors. ENNENG Motor products are ultra-efficient permanent magnet synchronous motors.

 

Compared with traditional electric excitation motors, permanent magnet motors, especially rare earth permanent magnet motors, have the advantages of simple structure, reliable operation, small size, lightweight, small loss and high efficiency, and flexible and diverse shape and size of the motor. The application is extremely wide, covering almost all areas of aerospace, national defense, industrial and agricultural production, and daily life.

 

The permanent magnet synchronous motor has the following characteristics:

  • Rated efficiency is 2% to 5% higher than normal asynchronous motors;
  • The efficiency rises rapidly with the increase of the load. When the load changes within the range of 25% to 120%, it maintains high efficiency. The high-efficiency operating range is much higher than that of ordinary asynchronous motors. Light-load, variable-load, and full-load all have significant energy-saving effects;
  • Power factors up to 0.95 and above, no reactive compensation required;
  • The power factor is greatly improved. Compared with asynchronous motors, the running current is reduced by more than 10%. Due to the decrease in operating current and system losses, energy-saving effects of about 1% can be achieved.
  • Low-temperature rise, high power density: 20K lower than three-phase asynchronous motor temperature rise, design temperature rise is the same and can be made into a smaller volume, saving more effective materials;
  • High starting torque and high overload capacity: according to requirements, it can be designed with high starting torque (3-5 times) and high overload capacity;
  • The variable frequency speed control system is used, which is better in dynamic response and better than that of asynchronous motors.
  • The installation dimensions are the same as the asynchronous motors currently widely used, and the design and selection are very convenient.
  • Due to the increase in power factor, the visual power of the power supply system transformer is greatly reduced, which improves the power supply capacity of the transformer, and can also greatly reduce the cost of the system cable (new project);
  • When the new project is built, all the drive systems use permanent magnet synchronous motors, the project investment is basically the same as the use of asynchronous motors, and the project can continue to obtain energy-saving benefits after the project is put into operation;

In the general industrial sector, the replacement of low-voltage(380/660/1140V) high-efficiency asynchronous motors, the system saves 5% to 30% energy, and the high-voltage(6kV/10kV) high-efficiency asynchronous motors, system saves 2% to 10%.