1.3 The list of terms

1. Relay protection - релейная защита

2. Generator - генератор

3. Еlectromagnetic devices - электромагнитные устройства

4. Power system - энергосистема

5. Voltage - напряжение

6. Сurrent - ток

7. Еlectromechanical relay - электромеханическое реле

8. Induction - индукция

9. Аlternating current - переменный ток

10. Polarized relay - поляризованное реле

11. Device – устройство

12. Magnetic attraction- магнитное притяжение

13. Measurement – измерение

14. Field coils – катушка

15. Ratio – соотношение, коэффифиент

16. Circuit – схема, цень

17. Reverse – обратный

18. Installation – установка, проводка, сооружение, настройка

19. re-occurrence – повторное появление, вхождение, проишествие

20. electromechanical relay – электромеханическое реле

2.1 Annotation

Relay protection - a set of automatic devices for fast (with damage) the identification and separation of power system damaged elements of the power system in emergency situations to ensure the normal operation of the entire system.

The first protective relays were electromagnetic devices. Microprocessor-based digital protection relays now emulate devices, as well as providing types of protection and supervision impractical with electromechanical relays.

2.2 Translation

Релейная защита — комплекс автоматических устройств, предназначенных для быстрого (при повреждениях) выявления и отделения от электроэнергетической системы повреждённых элементов этой электроэнергетической системы в аварийных ситуациях с целью обеспечения нормальной работы всей системы. Первые защитные реле были электромагнитные устройства. Микропроцессорные реле цифровой защиты теперь стремиться превзойти устройства, а также предоставление типы защиты и контроля, которые не используется с электромеханическими реле.

3.1 Question

1) What is called relay protection?

2) What was the first relay protection?

3) What are based on work electromechanical relays?

4) What are the advantages of digital relays?

5) What are the disadvantages of electromechanical relays?

6) Which classifications are divided relay protection?

7) Where are used polarized relays?

8) What is difficult to determine when you are using electromechanical relay?

4.1 Grammar

4.Put each verb in brackets into a suitable tense.

1.Why didn't you phone? If I had known you were coming, I would have met you at the airport.

2.It's a pity you missed the party. If you I had come you would have met my friends from Hungary.

3.If we had some tools, we would be able to repair the car, but we haven't got any with us.

4.Thank you for your help. If you had not helped me, I would not have passed the examination.

5.It's a beautiful house, and I would buy it if I had the money, but I can't afford it.

6.I can't imagine what I would do with the money if I won the football pools or a lottery.

7.Mark isn't a serious athlete. If he trained harder, he would be quite a good runner.

8.If Claire had listened to her mother, she would not have married David in the first place.