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A frequency inverter delivers energy to the motor while accelerating it; but when you want to decelerate the motor quickly, where does that energy go? This is exactly where dynamic... More Details

The cable cars carrying thousands of passengers safely across a mountainside, or the ski-resort chairlifts turning without interruption all day long, depend on one hidden yet vital... More Details

Thanks to frequency inverters, it is possible not only to slow an electric motor down but also to speed it up by going above its rated speed. However, making a motor turn faster is... More Details

The most common way to run an electric motor at the desired speed, with the right torque and with high energy efficiency is to use a frequency inverter, also known as a VFD (Variab... More Details

A biomass and pellet plant is a demanding production environment where heavy-duty machines that grind, compress, dry, and transport raw organic material come together. At every lin... More Details

A greenhouse is a living system that must continuously provide the temperature, humidity, and air movement the plant needs inside, regardless of the weather outside. What establish... More Details

The efficiency value printed on an electric motor's nameplate is a design target achieved under ideal conditions. If you want to learn how efficiently that motor actually runs in t... More Details

The majority of failures that take an electric motor out of service start not in the windings or the control board, but in its mechanical heart: the bearings. A bearing is the part... More Details

Equipment operating at sea faces a far harsher world than its land-based counterpart. Constant salt spray, high relative humidity, the changing inclination angles caused by the shi... More Details

Oil and gas facilities are industrial environments where electric motors must operate to the highest standards of reliability and safety. In the processes of refining, pumping, and... More Details

Cement manufacturing represents one of the harshest operating environments in heavy industry. From crushing raw materials to firing clinker, from grinding to packing, hundreds of i... More Details

Escalators and moving walkways carry millions of people every day, from shopping malls and metro stations to airports and business centers, and they are expected to run without int... More Details

An electric motor cannot convert all the electricity it draws into mechanical power; some of it is inevitably turned into heat. For a single motor this heat may seem small, but in ... More Details

The only reliable way to understand how efficiently an electric motor truly runs is to measure it. The efficiency value printed on the nameplate is a reference obtained by the manu... More Details

The power and efficiency values printed on an electric motor's nameplate do not, on their own, tell you how the motor will behave in the real world. A motor heats up while running ... More Details

In industrial facilities that contain flammable gases, vapors, or combustible dust, selecting an electric motor goes far beyond a simple calculation of power and efficiency. In the... More Details

A three-phase induction motor works exactly as designed when all three phases are supplied with voltages of equal magnitude and a precise 120-degree phase angle between them. This ... More Details

Belt-and-pulley drive is one of the most common ways to transfer a motor's power to a load. From a ventilator to a stone-crushing line, from a machining tool to a conveyor, many sy... More Details

One of the most critical components determining the life and reliability of an electric motor is the bearing system. This element carries the shaft, makes rotation possible and tra... More Details

The rotational speed of an electric motor is determined not only by the supply frequency but also by how many magnetic poles are created in the stator. As the pole count increases,... More Details