Who invented the generator and who invented it?

1834 Jacobi, Germany invents the DC engine.

1888 Yugoslav-American Tesla invented the alternating current electric motor.

In 1821, the British scientist Faraday was the first to prove that electricity could be converted into rotational motion. The first person to make an electric motor is said to be Jacobi in Germany. He became a simple device around 1834:

In the middle of the two U-shaped electromagnets, a six-arm wheel is installed, and each arm is equipped with two rod-shaped magnets. After the power is applied, the rod magnet and the U-shaped magnet have mutual attraction and repulsion effects, driving the wheel axle to rotate. Later, Jacobi made a large installation.

Installed on a dinghy, powered by 320 denier batteries, the dinghy made its first voyage on the Elbe in 1838 at a speed of only kilometers per hour, and at the same time, Davenport in the United States also succeeded in producing an electric motor to drive a printing press, and printed the American telegraph sentence "Electromagnetic and Mechanical Information". However, these two types of motors do not have much commercial value, and the cost of using batteries as a power source is too high and impractical.

It wasn't until the first practical DC engine came out that electric motors were widely used. In 1870, the Belgian engineer Graham invented the DC generator, which is similar to the electric motor in design. Later, Gramm proved that when an electric current is fed into a DC engine, its rotor rotates like an electric motor.

As a result, this Gramm-type electric motor was manufactured in large quantities. Efficiency is also improving. At the same time, Germany's Siemens took on the task of building better generators and began to work on vehicles powered by electric motors, so Siemens made the world tram.

In 1879, at the Berlin Industrial Exhibition, Siemens' non-smoking tram won a round of applause from the audience. The Siemens electric locomotive was only 3 horsepower at that time, and the electric locomotive tested by Edison, the American inventor, has reached 12-15 horsepower. However, at that time, all motors were DC motors, which were limited to driving trams.

In 1888, the Yugoslav-born American inventor Tesla invented the alternating current electric motor. It is made according to the principle of electromagnetic induction, also known as induction motor, this motor has a simple structure, uses alternating current, no rectification, no spark, so it is widely used in industrial household appliances, AC motors are usually powered by three-phase AC.

In 1902, the Swedish engineer Danielson first proposed the idea of synchronous electric mechanism.

The working principle of synchronous motor is the same as that of induction motor, the rotating magnetic field is generated by the stator, and the rotor winding is powered by DC, and the speed is fixed and unchanged, which is not affected by the load. Synchronous motors are therefore particularly suitable for clocks, record players and tape recorders.

The DC motor is DC excitation, and the wiring method of the excitation winding is different in working characteristics. The starting torque of the series motor is large, suitable for traction and lifting, and the speed of the motor changes little with the size of the load, and can be adjusted, which can be used for fixed speed or speed regulation.

AC commutator motor, that is, an AC motor with a commutator on the rotor. Because it can be used for both AC and DC, it is called AC and DC motors or general motors, and is mostly used in household appliances.

In 1831, Faraday passed a wire in a closed circuit through an electromagnetic field, and Faraday realized that there was a close connection between electricity and magnetic fields, and he built the first prototype generator, which consisted of a copper disc rotating in a magnetic field, which generated electricity. Until now, all electricity was generated by electrostatic machines and batteries, neither of which could generate significant power. However, Faraday's generator finally changed everything.

In 1832, the Frenchman Bixie invented the hand-cranked DC generator.

In 1866, Siemens of Germany invented the self-excited DC generator.

In 1869, Graham of Belgium made the ring armature and invented the ring armature generator. This type of generator uses water to turn the rotor of the generator, and after repeated improvements, the output power was obtained in 1847.

In 1882, Gordon of the United States built a two-phase giant generator with an output of 447 kW, a height of 3 meters, and a weight of 22 tons.

In 1896, Tesla's two-phase alternator began operation at the Nyala power plant, with 3,750 kW, 5,000 V alternating current delivered to the city of Buffalo, 40 kilometers away.

In 1889, Westinghouse built a power plant in Oregon, and in 1892 it successfully delivered 15,000 volts to Pittsfield.

Strictly speaking, it is the first generator invented by the Frenchman Pixi, but the prototype of the generator is the result of Faraday, who discovered the principle of electromagnetism.

Oster discovered electromagnetism, Faraday invented the first electric motor two years later, Faraday discovered the mystery of electromagnetic induction for the first time ten years later, and invented the world's first generator ten days later. Others are just the improvers of these two technologies.

Generator Inventor: Michael Faraday.

Michael Faraday was a student and assistant of the famous British chemist Davy, whose discoveries laid the foundation for electromagnetism and were the forerunners of Maxwell. On October 17, 1831, Faraday discovered the phenomenon of electromagnetic induction for the first time, and then obtained a method for generating alternating current and electricity. On October 28, 1831, Faraday invented the disc generator, the first generator created by man.

Because of his great contributions to electromagnetism, he is known as the "father of electricity" and "the father of alternating current".