What Is a High Efficiency Motor?
A motor is a machine that converts electrical power into rotational motion, and is a very important piece of equipment in the industrial world used in many factories and plants.
However, motors also cannot convert 100% of the electrical power into rotary motion, as a percentage of the supplied electrical power is always released as heat. This loss is very small if only one motor is used. Since it is said that there are about 100 million motors in Japan, the loss is very large.
High efficiency motors have been developed to reduce these losses.
Uses of High Efficiency Motors
High efficiency motors are already widely available in many markets as replacements for existing motors. Uses of these motors include all products in which they can be used.
For this reason, high-efficiency motors are increasingly being used in pumps for water supply, roots blowers for airflow, and many other rotating equipment.
These high efficiency motors are equivalent to the IEC standard, which is a worldwide standard, and are generally defined as a premium efficiency class (IE3).
Principle of High Efficiency Motors
High efficiency motors consume less electricity than ordinary motors, which has the great advantage of addressing global warming and reducing power consumption, but there are also some points that require attention.
If you only need to replace the motor, you can generally just purchase the same one, but if the only alternative is a high efficiency motor, you need to be careful.
High efficiency motors tend to have a higher RPM, so connecting them to a pump or fan without any prior investigation may conversely increase the power consumption due to the increased power demand. Also, the starting current may be higher, so it is necessary to check in advance that there are no problems with the wiring, breakers, magnets, or other related equipment.
In addition, the torque generated will be higher, and the delta star starting system cannot be used, so it is necessary to check with the manufacturer of the equipment before replacing a conventional motor with a high efficiency motor.
However, it is becoming a corporate responsibility to reduce CO2 emissions as much as possible due to the problem of global warming.
If possible, replacing equipment with high efficiency motors will be highly appreciated as a company’s environmental response.