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electric motor

TEKNIK ELEKTRO

  Andy kurniawan (1620201027).

SHORT ARTICLE ABOUT: 

ELECTRIC MOTOR

An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this is the conversion of mechanical energy into electrical energy and is done by an electric generator.
In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor.
 In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy. Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators.

 Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.
Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.Early motors Faraday's electromagnetic experiment, 1821 Perhaps the first electric motors were simple electrostatic devices created by the Scottish monk Andrew Gordon in the 1740s.[2] The theoretical principle behind production of mechanical force by the interactions of an electric current and a magnetic field, Ampère's force law, was discovered later by André-Marie Ampère in 1820. The conversion of electrical energy into mechanical energy by electromagnetic means was demonstrated by the British scientist Michael Faraday in 1821. A free-hanging wire was dipped into a pool of mercury, on which a permanent magnet (PM) was placed. When a current was passed through the wire, the wire rotated around the magnet, showing that the current gave rise to a close circular magnetic field around the wire.[3] This motor is often demonstrated in physics experiments, brine substituting for toxic mercury. Though Barlow's wheel was an early refinement to this Faraday demonstration, these and similar homopolar motors were to remain unsuited to practical application until late in the century.In 1827, Hungarian physicist Ányos Jedlik started experimenting with electromagnetic coils. After Jedlik solved the technical problems of the continuous rotation with the invention of the commutator, he called his early devices "electromagnetic self-rotors". Although they were used only for instructional purposes, in 1828 Jedlik demonstrated the first device to contain the three main components of practical DC motors: the stator, rotor and commutator. The device employed no permanent magnets, as the magnetic fields of both the stationary and revolving components were produced solely by the currents flowing through their windings

TRANSLATE:
Sebuah motor listrik adalah mesin listrik yang mengubah energi listrik menjadi energi mekanik. Kebalikan dari ini adalah konversi dari energi mekanik menjadi energi listrik dan dilakukan dengan generator listrik.Dalam mode otomotif normal, paling motor listrik beroperasi melalui interaksi antara medan magnet motor listrik dan berliku arus untuk menghasilkan kekuatan dalam motor. Dalam aplikasi tertentu, seperti di industri transportasi dengan motor traksi, motor listrik dapat beroperasi di kedua otomotif dan pembangkit atau pengereman mode juga menghasilkan energi listrik dari energi mekanik. Ditemukan dalam aplikasi yang beragam seperti kipas industri, blower dan pompa, peralatan mesin, peralatan rumah tangga, alat-alat listrik, dan disk drive, motor listrik dapat didukung oleh arus (DC) sumber langsung, seperti dari baterai, kendaraan bermotor atau rectifier, atau oleh arus bolak-balik (AC) sumber, seperti dari jaringan listrik, inverter atau generator motor kecil dapat ditemukan dalam jam tangan listrik. Tujuan umum motor dengan dimensi yang sangat standar dan karakteristik menyediakan tenaga mesin nyaman untuk keperluan industri. Yang terbesar dari motor listrik yang digunakan untuk kapal propulsi, kompresi pipa dan dipompa penyimpanan aplikasi dengan penilaian mencapai 100 megawatt. motor listrik dapat diklasifikasikan berdasarkan jenis sumber tenaga listrik, konstruksi internal aplikasi, jenis output gerak, dan motor sehingga on.Electric digunakan untuk menghasilkan gaya linear atau putar (torsi), dan harus dibedakan dari perangkat seperti solenoida magnetik dan pengeras suara yang mengubah listrik menjadi gerak tetapi tidak menghasilkan kekuatan mekanik yang dapat digunakan, yang masing-masing disebut sebagai aktuator dan transduserAwal motor percobaan elektromagnetik Faraday, 1821 Mungkin motor listrik pertama adalah perangkat elektrostatik sederhana diciptakan oleh biksu Skotlandia Andrew Gordon di 1740-an. [2] Prinsip teoritis balik produksi kekuatan mekanik oleh interaksi dari arus listrik dan medan magnet, kekuatan hukum amper, ditemukan kemudian oleh André-Marie amper pada tahun 1820. The konversi energi listrik menjadi energi mekanik dengan cara elektromagnetik ditunjukkan oleh ilmuwan Inggris Michael Faraday pada tahun 1821. sebuah kawat bebas gantung itu dicelupkan ke dalam kolam merkuri, yang magnet permanen (PM) ditempatkan. Ketika saat ini yang telah disahkan melalui kawat, kawat diputar di sekitar magnet, menunjukkan bahwa saat ini memunculkan medan magnet melingkar dekat sekitar kawat. [3] Motor ini sering ditunjukkan dalam eksperimen fisika, air garam penggantinya untuk merkuri beracun.Meskipun roda Barlow adalah perbaikan awal untuk demonstrasi Faraday ini, ini dan yang sejenis motor homopolar yang tetap tidak cocok untuk aplikasi praktis sampai di akhir century.?In 1827, fisikawan Hungaria Anyos Jedlik mulai bereksperimen dengan kumparan elektromagnetik. Setelah Jedlik memecahkan masalah teknis dari rotasi terus menerus dengan penemuan komutator, ia disebut perangkat awal "elektromagnetik diri rotor". Meskipun mereka hanya digunakan untuk tujuan instruksional, pada tahun 1828 Jedlik menunjukkan perangkat pertama yang mengandung tiga komponen utama motor DC praktis: stator, rotor dan komutator. Perangkat yang digunakan tidak ada magnet permanen, sebagai medan magnet dari kedua komponen stasioner dan bergulir diproduksi sendiri oleh arus yang mengalir melalui gulungan mereka.

 5W+1H Question

•WHAT is an electric motor?

Answer: electric motor is an electrical machine that converts electrical energy into mechanical energy.

•WHO first creates the devicies electric motor?

 Answer: Andrew Gordon

•WHERE we can find the electric motor is applied?

Answer; Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives

•WHEN  is Ányos Jedlik started experimenting with electromagnetic coils?

 Answer: in 1827

•WHY

Answer:

•How an electric motor works?

Answer:

IDENTIFIY TENSES ANS IT’S PATTERN

 

•PRESENT CONTINOUS TESES

•An electric motor is an electrical machine that converts electrical energy into mechanical energy.

•The reverse of this is the conversion of mechanical energy into electrical energy and is done by an electric generator.

•Electric motors are used to produce linear or rotary force (torque), and should be distinguished.

•This motor is often demonstrated in physics experiments, brine substituting for toxic mercury.

•PAST CONTINOUS TENSES

•Ampère's force law, was discovered later by André-Marie Ampère in 1820

•The conversion of electrical energy into mechanical energy by electromagnetic means was demonstrated by the British scientist Michael Faraday in 1821

•A free-hanging wire was dipped into a pool of mercury, on which a permanent magnet .

•When a current was passed through the wire, the wire rotated around the magnet, showing that the current gave rise to a close circular magnetic field around the wire.

•Though Barlow's wheel was an early refinement to this Faraday demonstration

 

VERBAL AND NOMINAL SENTENCE

 

VERBAL:

•An electric motor is an electrical machine that converts electrical energy into mechanical energy.

•electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor.

•The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts.

•Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.

•Electric motors are used to produce linear or rotary force .

•the first electric motors were simple electrostatic devices created by the Scottish monk Andrew Gordon in the 1740s.

•Ampère's force law, was discovered later by André-Marie Ampère in 1820.

•The conversion of electrical energy into mechanical energy by electromagnetic means was demonstrated by the British scientist Michael Faraday in 1821

NO NOMINAL SENTENCE
•

 AKTIF:

    a)An electric motor is an electrical machine that converts electrical energy into mechanical energy.

b)Andre-Marie Ampere discovered the power of law Ampere in 1820

c)Scottish monk andrew gordon create simple electrostatic devices in the 1740s

d)A free-hanging wire was dipped into a pool of mercury    

 

PASIF: 

a)    

 b)Ampère's force law, was discovered later by André-Marie Ampère in 1820. 

c)simple electrostatic devices created by the Scottish monk Andrew Gordon in the 1740s. 

d)into a pool of mercury-free wire hanging it on the dip.