WHAT IS AN INVERTER

An inverter is an electronic device that converts direct current (DC) to alternating current (AC). When it comes to motors, particularly electric motors, using an inverter can indeed lead to energy savings. Let me explain how: 

 

Variable Speed Control: One of the primary advantages of using an inverter with a motor is the ability to control the motor's speed. Traditional motors without inverters usually operate at a fixed speed, which might not always be the most efficient for the task at hand. By using an inverter, you can adjust the speed of the motor according to the load requirements. This means the motor can run at lower speeds when less power is needed, leading to energy savings. For example, in applications where the load varies, such as fans or pumps, using an inverter can significantly reduce energy consumption compared to running the motor at a constant speed. 

 

Soft Start and Stop: Inverters enable soft start and stop functions. When a motor starts up, it draws a surge of current which can be inefficient and cause stress on the electrical system. Inverters can gradually ramp up the motor's speed, reducing the initial current spike. Similarly, during shutdown, an inverter can gradually decrease the motor's speed, reducing mechanical stress and energy wastage associated with sudden stops. 

 

Efficiency Improvements: In some cases, motors operate more efficiently at specific speeds. Using an inverter allows you to match the motor's speed to the optimal operating point for efficiency. This can result in reduced energy consumption and lower operating costs over time. 

 

Energy Recovery: In certain applications, such as regenerative braking systems in electric vehicles or elevators, an inverter can capture energy that would otherwise be wasted during deceleration or braking. This energy can be fed back into the power supply or stored for later use. 

 

Load Matching: Some processes have varying load requirements. An inverter-equipped motor can adjust its speed based on the load, maintaining the necessary output without running at full speed when it's not needed. This ensures that the motor operates efficiently and consumes only the energy required for the task. 

 

Reduced Wear and Tear: Controlling the motor's speed and providing soft start and stop functions can reduce mechanical stress on the motor, leading to longer lifespan and less frequent maintenance needs. 

 

In summary, using an inverter with your motor can save energy by allowing precise control of motor speed, optimizing efficiency, reducing initial current surges, and recovering energy during deceleration. However, it's important to note that the extent of energy savings depends on the specific application, load profile, and how effectively the inverter is set up and utilized. 

 

For more information on the Inverters that we can supply at EMO call us on 02476 980833.