BEVI knowledge bank

BEVI's knowledge bank collects information about our areas of expertise, electric drive systems and power generation.

Electric motor knowledge

Energy efficiency standard for electric motors, Ecodesign requirements

The Ecodesign directive regulates requirements for energy efficiency of electric motors. According to the above standards, the new classes have the designations IE1, IE2, IE3 where the IE3 have the highest efficiency.

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General technical information on electric motors

Many factors that influence the selection of an electric motor and its options for different applications. Here you can learn more about, for example, voltages, balancing, motor protection, thermal contacts, thermistors, cooling, standby heaters, insulation class, different types of operation, protection class and norms.

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Maintenance of electric motors

In normal operating environments, maintenance of electric motors is limited to lubrication of the bearings. In abnormal environments, such as high ambient temperature, all bearings should be checked and lubricated regularly.

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recycling-symbol-300x281.gifRecycling of electric motors

Most often, it is an advantage to renovate large electric motors. Otherwise, the material in motors can be recycled to a very high extent. Material recycling saves both natural resources and energy and is more environmentally friendly.

Read  more about recycling of electric motors

Transmission knowledge

Advice on choice of worm gear

Factors to consider when choosing the right gear for a given application. 

Read more about selecting the correct worm gear

Lubrication and maintenance of a worm gear

Worm gear units normally do not need service or replenishment of oil.  If the gearbox is taken out of service for an extended period of time in a humid environment, we advise that it is filled completely with oil. 

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Knowledge of coil winding material

Selection of brush holders

A  carbon brush holder assembly fulfils a significant function for a complete and satisfactory slip ring system.

Read more about selecting brush holders