Translate into English:

1. Рези́стор — елемент електричного кола, призначений для використання його електричного опору.

2. Основною характеристикою резистора є величина його електричного опору.

3. Резистори відносяться до електричних компонентів, що застосовуються в схемах електротехніки та електроніки для обмеження сили струму та розподілу напруги.

4. Резистори — найпоширеніші пасивні компоненти електронної апаратури, що використовуються як навантаження, споживачі та подільники в колах живлення.

5. Резистори діляться на дві групи: резистори загального призначення та резистори спеціального призначення.

Translate into English:

Здійснювати, струм, співвідношення, опір, потужність, тепловіддача

ДИОДИ

Diode - electronic device with two electrodes, which passes an electric current in only one direction. Used in radio engineering, electronics, energy and other sectors, mainly for straightening alternating electric current detection, conversion and multiplication of frequency and for switching circuits.

William Henry Eklz proposed the title diode in 1919, forming it from Greek particle di, which means two or Greek ὅδος - way. The most common semiconductor diodes, vacuum tube diodes but also has its own scope. Semiconductor diode - uses rectificate properties of pn junction, ie the transmission of current only in one direction.

In the tube diode current can pass only from the anode to the cathode through the design lamps. Tube diodes are widely used in the radio during the XX-th century, but in the modern era behind them remained only a few application areas. In 1873 Frederick Hutray discovered the principle of operation of the vacuum diode. Raising the glowing metal to the positively charged electroscope, and not touching it, he was able to defuse the electroscope, and with negatively charged electroscope this does not happen. Thomas Edison repeated this finding independently in 1880. At the time this discovery was not clear how to use this effect, but just in case Edison patented device invented.

After 20 years, John Ambrose Fleming realized that the effect of unilateral conductivity can be used in radio. He patented his invention in 1904 - in Britain, and in 1905 - in the U.S.

Karl Ferdinand Braun opened the principle of semiconductor diode in 1874. Vittier Greenleaf Pickard designed the first radio receiver using a crystal diode. He patented his invention in 1906.

Complete sentence with the appropriate word:

diode, unilateral conductivity, vacuum tube, electrodes, semiconductor diode,

1. A … , the most common type today, is a crystalline piece of semiconductor material with a p-n junction connected to two electrical terminals.

2. A … diode now rarely used except in some high-power technologies and by enthusiasts.

3. The effect of … can be used in radio.

4. A … is a two-terminal electronic component with asymmetric transfer characteristic.

5. A vacuum tube diode is a vacuum tube with two … , a plate (anode) and cathode.

Translate in English:

1. Eлектрод з'єднаний з генератором імпульсів високої напруги.

2. Все це послужило передумовами до пошуку інших технологій виробництва високочистого напівпровідникового кремнію.

3. Ці приклади в даній книзі не застосовуються.

4. Він не зміг розрядити обстановку в залі.

5. У 1960-х роках на зміну електронним лампам прийшли транзистори, розміри і вартість комп'ютерів почали падати, а інтелект і обчислювальна потужність цих машин стали рости.

alternator – генератор змінного струму;

generator set – генераторні установки;

triangle – трикутник;

rotating – обертовий;

stationary – нерухомий.

Elements of tractor electrical equipment

Generator on a tractor - is the main source of power consumers of electricity (other than the starter), including charging battery when the engine is running. Today, tractors are built up generator sets alternating current with electromagnetic excitation. Thus by design stench are: with a rotating and stationary field winding, and thereafter, with contact rings and brushes and noncontact, three-phase and five-phase; connection with phase stator windings of a "star" or "triangle". As for charging the battery required direct current, alternators equip the unit rectifiers. The generator is mounted to the engine through the bottom bracket and the upper stretch fence. The generator consists of a stator 3, covers 10 and 12, rotor 11 and the rectifier 6.  Stator assembled from plates made of electrical steel. It has nine poles that are mounted coil winding two stators. Generator rotor is a shaft of the six ray star permanent magnet, which rotates in two ball bearings, which are pressed into the lid.

1. What is the main source of power in tractor?

2. How is the generator mounted to the engine?

3. What components of generator do you know?