
How Does a Dahlander-Connected Two-Speed Motor Work?
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
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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

Cranes and lifting systems are machines that raise and move heavy loads safely. They are used in a vast range of settings, from factories to ports and from construction sites to wa... More Details

With the right care, an electric motor can run trouble-free for decades; when neglected, it can fail at an unexpected moment and bring production to a halt. The most important fact... More Details

An electric motor is usually connected to the equipment it drives through a coupling (a shaft connection element). The quality of this connection, namely the alignment of the motor... More Details

Ideally, the voltage and current in an electrical supply take the form of a smooth sine wave. Today, however, many electronic devices and drives distort this clean wave, creating u... More Details

The asphalt used to build roads, highways and airport runways is produced in asphalt plants. These plants carry out many stages at once, from aggregate feeding and drying to screen... More Details

In many industrial applications, an electric motor does not work on its own but together with a gearbox. A gearbox is a gear system that lowers the motor's speed to increase torque... More Details