Monthly Archives: janeiro 2018


Many industrial processes require variable speed load drive devices, such as pumps for varying liquid flow; fans for variation of air flow; transport systems to vary the transport speed; lathes for variation of cutting speed; winding machines to compensate for the variation of the coil diameter.

For a long time, variable speed industrial applications have been dictated by process requirements and limited by technology because of cost, efficiency and maintenance requirements and components employed. In the past, the speed variation was made by a fixed speed induction motor and was the first electric energy conversion device for mechanical energy, energy conversion device through mechanical, hydraulic or electromagnetic components (according to the energy conversion device.

A motor starting device joins all the components necessary to control and protect an electric motor and the selection of the components to constitute a device conditions the performance of the installation. The main components required are: protection level, fixed or variable speed operation, sectioning, protection against short circuits, protection against overload and switching.

Electric Motors – Admirable Machines

Electric motors are admirable machines that combine the interaction force of magnetic fields to interact in the induction of a central axis in which it moves, which generates force and speed.

Electric motors are basically made up of a set of parts mounted on a metal carafe. Virtually all DC motors have the same parts, changing the size according to the size of the motor. The main parts of an electric motor are the field coil and the armature.

In both industries and appliances, electric motors reelcraft olps are widely used, being powered by electric energy that releases mechanical energy, which enables the activation of several other devices.

Electric motors are found in different shapes and sizes, each one suited to your task. No matter how much torque or power an engine has to develop, it will always be possible to find the one that suits you best, other than those that are not standard, those that need some specialty, but those can also be manufactured. For this it is necessary to develop the desired model with an engine manufacturer.