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The most heavily worn and most frequently failing component of an electric motor is its bearings. A significant share of motor faults stems directly from bearing problems. Well-mai... More Details

Every electric motor carries a label on a small metal plate that serves as its identity card. This nameplate contains all the essential technical information, from the motor's powe... More Details

Heavy industry, ranging from mining and cement to iron-steel works and stone-crushing plants, is the arena where electric motors operate under the most demanding conditions imagina... More Details

Cold storage rooms, supermarket refrigeration, industrial cooling systems and air conditioning all run on refrigeration compressors. At the heart of these compressors is the electr... More Details

An electric motor's efficiency class is written on its nameplate; but how that figure is determined, and whether it is genuinely accurate, is an important matter. A motor's efficie... More Details

Most electric motors are designed to run at a single fixed speed. Some applications, however, require the motor to operate at two different speeds. One of the solutions that answer... More Details

Some applications require a motor to run at two different speeds. One of the common ways to obtain two speeds from a single motor is the Dahlander connection. This method provides ... More Details

The first question that comes up when buying an electric motor is often the price. But why can two motors of the same power have different prices? The price of an electric motor de... More Details

Most electric motors treat vibration as an unwanted problem and try to keep it to a minimum. In some applications, however, vibration is exactly what is wanted. Vibration motors ma... More Details

Steel and foundry plants are among the harshest and highest-temperature environments in all of industry. Molten metal, intense heat, heavy loads and constant production pressure st... More Details

Wherever an electric motor is going to operate, it must be protected against the dust, moisture and water of that environment. The level of this protection is defined by the IP pro... More Details

When you look at industrial plants, workshops and large production lines, you will see that almost all of the electric motors in operation are three-phase. The single-phase motors ... More Details

The most widely used motor in industry is the induction motor. However, in places that demand precise positioning, step and servo motors are preferred. These three motor types are ... More Details

Cooling towers are critical equipment used to cool water in industrial plants, power stations and large air-conditioning systems. The cooling function of these towers depends on th... More Details

On the nameplate of an electric motor there is a value that is often overlooked but important: the service factor. Generally shown as a number such as 1.0 or 1.15, this value expre... More Details

How high a temperature an electric motor can withstand depends on the insulation of the windings inside it. The insulation class, shown on the motor nameplate with a letter such as... More Details

In industry, electric motors are often designed to run at a fixed speed. Yet in many applications, the motor does not always need to turn at full speed. This is where the frequency... More Details

Three-phase electric motors run on the balanced energy of three phases, and that balance is the foundation of healthy operation. But if one of the phases is cut off or lost for any... More Details

In the traditional approach to maintenance, repairs are either carried out after a breakdown occurs or planned maintenance is applied at fixed intervals. Both methods have their sh... More Details

Not every electric motor runs continuously; some are used seasonally, some are kept on standby as spares, and others are stored in a warehouse. Yet leaving a motor idle for a long ... More Details