What is a High-Efficiency Motor? Explanation of the Advantages and Considerations

High-efficiency motors are energy-efficient motors that generate minimal heat. It is anticipated that many companies currently using standard efficiency motors may be switching to high-efficiency motors in the future.

While there are many advantages to installing high-efficiency motors, there are also certain points that should be checked beforehand.

This article provides an overview of high-efficiency motors and the points to consider when implementing them.

What is a High-Efficiency Motor?

High-efficiency motors, as the name implies, are motors that efficiently convert electric power into motive power. Improved energy efficiency provides various benefits, such as reduced costs and less carbon dioxide emissions.

When a motor rotates, part of the input energy is lost in the form of heat. Therefore, not all of the supplied electric power is converted into motive power. High-efficiency motors can utilize power more efficiently by reducing the energy lost as heat.

Three Advantages of High-Efficiency Motors

There are numerous benefits to switching from a standard efficiency motor to a high efficiency motor.
The following section highlights three advantages of implementing high-efficiency motors.

Advantage 1: Energy-saving Results

High-efficiency motors are more energy efficient than standard-efficiency motors, resulting in reduced power consumption.

Compact, high-efficiency motors are used in
common household appliances, such as air conditioners and refrigerators. High-efficiency motors contribute to the development of products with superior energy-saving performance.

Advantage 2: Economic Benefits increase with Long Term Use

High-efficiency motors provide cumulative energy savings when used over a long period of time.

Switching from a standard efficiency motor to a high efficiency motor requires a certain payback period due to the initial cost. However, using a high-efficiency motor over a longer period of time reverses the total cost and improves the economic profitability.

Advantage 3: Minimal Temperature Rise

Compared to standard efficiency motors, high-efficiency motors are characterized by a lower temperature increase.

Since the generated heat is minimal, equipment and mechanisms for cooling can be eliminated, reducing investment and space requirements.
Reduced temperature rise creates the benefit of reduced costs associated with cooling.

Heat is generated when a motor is used because part of the input electrical energy is lost as thermal energy in the process of converting power into motive force. With  high-efficiency motors the  temperature rise is kept to a minimum.

Points to keep in Mind when installing High-Efficiency Motors

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(1) Relatively larger Motor Size

High efficiency motors tend to be larger than standard efficiency motors. If the space occupied by the motor is limited,  its dimensions and interference with peripheral equipment must be checked prior to installation.

Mabuchi Motor offers a wide range of compact, high-torque, energy-efficient motors. Please contact us if you are looking to improve efficiency while maintaining the size of your current motor, or if you are looking for a more compact motor while maintaining the same efficiency.

(2) Higher rotational Speed than Standard Efficiency Motors

High-efficiency motors rotate faster than standard-efficiency motors because the energy lost as heat is minimized.

Operating pumps, fans, etc. with the same load as before may increase power consumption due to faster rotation of the motor. It is necessary to reduce the load by using an inverter or trimming the impeller.

Summary

In this article, we have explained the following about high-efficiency motors:

• What is a High-Efficiency Motor?
• Advantages of implementing High-Efficiency Motors
• Points to keep in Mind when installing High-Efficiency Motors ​​​​​​​

Compared to motors with standard efficiency, high-efficiency motors can convert electrical energy into motive power effectively, and switching from current motors is expected to save energy and improve economic profitability.

However, when switching motors, be aware that the size may be larger than standard efficiency motors. Before installing a new motor, please check the dimensions of the motor and select a suitable size  for your application.

Mabuchi Motor offers a wide range of small, high-efficiency motors.
Our representatives will support you in your purchase, so that even first-time buyers can use our products with confidence.
If you are interested in our products, please feel free to contact us.

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