The industrial electric motor has passed difficult way from useless toy to the modern designs which are let out in serial production in the development. Common industrial engines in wide scales it has begun to be used only from 70th years of the 19th century. The first industrial electric motors were, naturally, engines of direct current. Along with developments of the first industrial electric motors attempts of designing of generators of direct current have begun. This long and complex process can be broken into three main stages conditionally.
The first half of the 19th century is characterized by creation of the physical devices showing continuous transformation of electrical energy to mechanical. In particular, investigating interaction of conductors with current and magnets, the famous scientist Faraday in 1821 has established that the electric current passing on the conductor can force this conductor to make rotation around magnet or to cause rotation of magnet around the conductor. Thus, practical experiences have visually proved possibility of creation of electric motor. The American physicist J. Henry in 1831 has made attempt to design the device in which the attraction heteronymic and pushing away of the similar magnetic poles for receiving continuous motion was carried out. This peculiar electric motor had very small capacity and actually was not of special practical value.
The second stage in development of industrial engines falls on the middle of the 19th century and is characterized by dominance of designs with rotary motion of the salient pole anchor. In 1834 the St. Petersburg academician B. S. Jacobi has constructed and has described the first engine which acted on the principle of attraction and pushing away between electromagnets and having undoubted practical application. Jacobi's electric motor could lift load weighing 10 — 12 pounds (about 4 — 5 kg) on height of 1 foot (about 30 cm) a second, that is its power made about 16 W. News of B. S. Jacobi's invention has extended over all countries soon. New common industrial engines of different design began to be used gradually in usual life. In particular, in printing houses there were large printing machines which have replaced manual skills.
At last, in the second half of the 19th century designs of engines with ring not salient pole anchor and almost constant rotating moment have been developed. Further researches have allowed to increase not only the power of the industrial electric motor, but also have shown possibility of the address of the engine to the generator of direct current. Thus, as a result of works of a number of scientists and inventors there was electric motor which has soon begun to be applied widely in equipment and everyday life of the person.
"Professional Electro Repair" - professional repair of electric motors. Also you can buy different electric motors from us, and also extracts, pumps, enamel wire, sinafleks, strippers, condensers, etc.
|"Professional Electro Repair" will return induction, crane, lift electric motors of foreign and domestic production, electric motors of direct current, multi-speed electric motors and any electric motors of city transport to stable work.
Requirements and desires of all our clients are considered. To make repair of the electric motor, for the purpose of diagnostics and identification of the reasons of breakdown, it is necessary to bring him to us to the address. On all types of works on repair of electric motors the guarantee is provided.
It is important! You can be sure that repair of electric motors will be made at the highest level.
Remember! At the correct diagnostics of malfunctions and availability "near at hand" of high-quality spare parts together with competent specialists all electric motors are under repair.
If it is necessary to rewind the electric motor, then you have addressed correctly. You come to us.
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