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In factories, the villains of energy bills are electric motors, which represent 70% of all electricity consumed, as pointed out by Eletrobras/Procel
Electric motors are in homes – in blenders, mixers, hair dryers, refrigerators – as well as in companies and industries, in elevators, escalators, and applications in milling cutters, lathes and conveyors, for example. Its use is so great that the recent research report by Market Research Future, "Electric Motors Market for Household Appliances", proves that there will be a growth of 5,87% between the years 2022 and 2030, this only for domestic use, without counting the industrial parks.
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According to the survey, the increase is due to the demand for energy-efficient engines: “Emerging regions around the world are expected to present unexplored opportunities. Sector players are trying to increase their production capacities with better cost efficiency supported by new possibilities”, says the survey, also pointing out that, although on the one hand the prospects are positive, on the other the market witnesses large gaps. And one of these obstacles is the low adoption of frequency inverters, hindering the late progress of Industry 4.0 through the automation of industrial processes.
Immense volume of production, distribution and sale, transport strategies, imports and exports make Brazil occupy the penultimate position in the international ranking
In Brazil, electricity is the most important input, its rational use is essential when it comes to cost reduction and competitiveness. In factories, the villains of energy bills and their high figures are electric motors, which represent 70% of all electricity consumed, as pointed out by Eletrobras/Procel.
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Exactly 20 years ago, Law nº 10.295 was enacted, which aims to combat energy waste. In its 2nd article, the legislation points out that the checking of establishments in relation to the maximum levels of energy consumption, or minimum energy efficiency, of equipment and machines, will be carried out based on viable values.
“It turns out that, to meet this condition, an immense amount of information is necessary, such as production volume, distribution and sales, transport strategies, imports and exports, among other factors, which are naturally difficult to acquire”, analyzes Joelintom Geffer , Siemens technical promoter at Reymaster Materials Elétricos and specialist in industrial automation.
This means that, in terms of energy efficiency, Brazil is in the penultimate position in the international ranking, among the 16 largest economies in the world. “To reverse this situation, the adoption of frequency inverters is urgent”, comments Geffer.
Frequency inverters applied in single-phase and three-phase electric motors can be the salvation of the waste of electric energy in Brazil and in the world
Frequency inverters are applied to single-phase and three-phase electric motors, enabling their activation with precise control of the starting current (reducing costs with oversizing cables, contactors, circuit breakers, panels and transformers). It is possible to control the speed and torque of the motor, resulting in lower consumption of electrical energy and greater durability of mechanical components of a machine or process.
Its operation is relatively simple, the conversion of the sinusoidal electrical voltage signal into a square wave signal is made, through a modulation called PWM - Pulse Width Modulation, this input signal is treated by some blocks that make up these devices.
In addition to helping save energy, frequency inverters are responsible for the best performance of machines and equipment.
And anyone who thinks that its only use is to save energy is wrong. On the contrary: frequency inverters are responsible for the best performance of machines and equipment; they need less maintenance; protect the engine more effectively; save space in the installation and, above all, facilitate the digital transformation for the Industry 4.0!
Reymaster, headquartered in Curitiba (PR) and Joinville (SC) – and which serves all of Brazil - has a complete portfolio of such equipment through a partnership with the Siemens and Schneider brands, in addition to having a specialized technical team to serve to every need of the national industry!
