The Difference Between the Size of The Motor Used in the Air Compressor

PREVIEW

   • Compared with low-voltage motors, high-voltage motors have the following advantages

   • Compared with low-voltage motors, high-voltage motors have the following disadvantages

   • ENNENG permanent magnet motors and energy-saving solutions for air compressors

Both high-voltage motors and low-voltage motors of air compressors have their own advantages and disadvantages. What are their respective advantages and disadvantages?

Compared with low-voltage motors, high-voltage motors have the following advantages:

1. The power of the motor can be increased, and the maximum can reach several thousand or even tens of thousands of kilowatts. This is because, when outputting the same power, the current of a high-voltage motor can be much smaller than that of a low-voltage motor. For example, a 500KW, 4 pole three-phase AC motor has a rated current of about 900A when the rated voltage is 380V, and only about 30A when the rated voltage is 10KV. Therefore, the high-voltage motor winding can use a smaller wire diameter. Therefore, the stator copper loss of the high-voltage motor is also smaller than that of the low-voltage motor. For high-power motors, when using low-voltage electricity, a larger area of stator slots is required due to the need for thicker wires, so that the diameter of the stator core is made large, and the volume of the entire motor will also become large;
2. For larger-capacity motors, the power supply and power distribution equipment used by high-voltage motors are less than the overall investment of low-voltage motors, and the line loss is small, which can save a certain amount of power consumption. In particular, 10KV high-voltage motors can directly use the grid power supply. In this case, the investment in power supply equipment will become less, the use will become easier, and the failure rate will become smaller.

Compared with low-voltage motors, high-voltage motors have the following disadvantages:

1. The cost of the winding is relatively high, and the cost of the related insulating materials will also increase accordingly ;
2. The requirements for the use environment are far higher than those of low-voltage motors for the environment ;
3. The insulation treatment process is difficult, the labor cost is high, and the motor delivery time is long.

ENNENG permanent magnet motors and energy-saving solutions for air compressors

ENNENG, a leading innovator in the motor industry, is dedicated to offering high-efficiency, energy-saving motor solutions tailored specifically for the air compressor sector. To combat the prevalent concern of excessive energy consumption during air compressor operations, we have thoughtfully engineered our latest offering – energy-efficient permanent magnet motors equipped with Variable Frequency Drive (VFD) models. These advanced motors are designed to drastically decrease users’ power usage, establishing an economically viable and environmentally responsible operating system.

Features of ENNENG permanent magnet motors

High efficiency and energy saving: ENNENG permanent magnet motors are made of rare-earth permanent magnet materials, which have high magnetic strength and low load torque during startup and operation, thus requiring less current. Compared with asynchronous motors of the same specification, the efficiency of the motor is increased by 10%-15%, with a significant power-saving effect.
Temperature rise control: We strictly control the temperature rise of the motor to ensure that the motor operating temperature is lower than 60K, thus prolonging the service life of the compressor and reducing maintenance costs.
Soft start and stable operation: permanent magnet motors are used in conjunction with permanent magnet rotors to realize a soft start, avoiding the impact on the compressor when high-power mechanical motors start at full pressure and ensuring smooth operation of the compressor.

Air compressor energy saving program

Optimization of variable-speed operating conditions: The variable-speed motor in the air compressor, driven by the ENERGY permanent magnet motor, is able to maintain high efficiency over a wide speed range. This means that optimal energy utilization can be achieved regardless of the compressor’s operating conditions.
Constant output pressure: Compressors equipped with ENNENG permanent magnet motors can adjust their optimum speed to the real-time air demand, ensuring constant output pressure. This not only saves a great deal of energy, but also improves work efficiency.
Flexible Motor Power Configuration: Our permanent magnet motor system allows users to order rated motors based on actual operating requirements, and through closed-loop control, the motor speed can be automatically varied according to pressure conditions. This avoids energy waste even during light load operation.

Professional customization and technical support

ENNENG has a professional technical team that can provide customized permanent magnet motor solutions based on your compressor application, functional requirements and efficiency goals. Our engineers will provide you with the best service and advice according to your specific situation.

In short, ENNENG permanent magnet motor and air compressor energy-saving solutions are designed to help users achieve more efficient and economical air compressor operation. By choosing ENNENG, you are choosing an energy-saving, environmentally friendly and efficient future. We look forward to your contact!