Т.Ю.Кущ, М.С.ВоловникАнглийский язык для судовых электромехаников. ENGLISH FOR MARINE ELECTRICAL ENGINEERS. 1986

14 8

Read the text and explain the different functions of “-ing” forms. Retell the text in Russian.

15 50

Home exercise. See ex. 15, Unit 1.

Hometask: Ex. 10, 15.

The third class period

16 8 Give free translation of the recorded text.

1. As a rule, the safety system is to come into action after the alarm system has operated.

2. Safety system of individual automated machinery is to operate when parameters exceed their limit values and is to cover all foreseeable fault conditions, assumed with regard to characteristics and operational properties of machinery concerned.

3. Safety system of internal combustion engines operating due to lubricating oil pressure drop and safety system of steam boilers operating due to low water level are to be independent of alarm and indicating systems, including the sensors.

4. Safety system of main internal combustion engine which may have influence upon manoeuvrability of the ship is to be provided with switching off facilities. The switching off device is to be of such design as to exclude the possibility of its unintentional use and in case of safety system being switched off its position is to be indicated by means of a special signal. The switching off device need not cover safety system operating due to lubricating oil pressure drop.

17 6

Fulfil or explain the following:

1. Explain the function of synchronization to the distribution network and closure of the circuit breaker.

2. Name conditions which are indicated on the control panel.

3. Speak on the necessity of time delay in all alarms.

18 4

Record your answers on a tape.

1. What is the purpose of the additional shaft generator control unit?

2. What is meant by “shaft generator ready”?

3. How can the time delay for tripping the shaft generator circuit breaker be set?

4. How would you know that no diesel-driven unit is synchronized to the network after an adjustable time delay?

5. What do alarms indicate?

19 8

Dwell with your fellow-student on automatic control of the shaft generator. Use ex. 17, 18. Then record your talk on a tape.

20 15

Practice pronunciation. Open your books and repeat after the speaker in pauses paragraphs 1—4 of the recorded text “Automatic Control of the Shaft Generators”. Then close your books and do the same with paragraphs 5—6.

21 4

Listen to the recorded text and say what is the difference between a tool and a drawing board.

A Machine Tool

Madmen seem to keep up in step with the progress of science and technical development of the day since there is an ever increasing number of ballistic missiles, interplanetary rockets, atomic bombs and submarines of every kind there.

The other day when Doctor Nut junior had to sign in “an electric machine tool” his face did not show any surprise at all.

He assured the doctor he had just left the assembly line... Moreover, he had been provided with a rotary tool. . . He maintained his speed range was 20,000 rpm to 38,000...

Two days later Dr. Nut, accompanied by a group of students, entered the room where the “model” was treated.

— This is the tool! — said the doctor pointing to the fellow.

— No, I am not, — answered the madman with determination. — If I were really such a model I would be working now. But this does not seem to be the case because for the last two days I’ve been doing absolutely nothing! I must be something else more like a drawing board, but I’m not so sure about it yet...

22 5

Write the exact translation.

Automatic Control of the Shaft Generators

In automatic electrical power plants using shaft generator additional shaft generator control unit is installed for automatic change over of the power supply between the shaft generator and the diesel-driven generators.

The shaft generator unit provides the following functions:

Excitation of the shaft generator

Synchronization to the distribution network and closure of the circuit breaker

Unloading and shutting-down of the diesel-driven generators operating in parallel

In the event of an alarm on the shaft generator, changing over from this generator to the stand-by generators

Switching a diesel-driven generator onto the distribution network and unloading of the shaft generator when “Shaft generator off” is requested

Field suppression on the shaft generator after tripping.

23 4

Listen to paragraphs 1—4, read sentence by sentence and translate them orally in pauses.

24 5

Respond to the questions.

1. What functions does the shaft generator unit provide?

2. Will you try to explain in a few words the operation of the automatic control of the shaft generator?

3. What is meant by “Shaft generator ready”?

4. What is the difference between a tool and a drawing board?

25 2 Fill in the blanks with suitable words.

1. If the ... switch on the control panel is set to the “Shaft generator on” position the generator will be excited and will generate a voltage. 2. When a sufficient number of diesel-driven units are in service, the shaft generator will be unloaded and its circuit breaker will be ... 3. If no diesel-driven unit is synchronized to the network after an . . . time delay, the shaft generator breaker will trip and black-out will occur.

26 6

Using the notes below speak on generators running in synchronism: 1. diesel-driven, generator, supply, distribution, network, synchronize, shaft, unit. 2. generator, run, synchronism, breaker, receive, closure, equipmen-t. 3. synchronize, alarm, initiate, shaft, generator, knot, network, minute. 4. if, shaft, generator, alarm, become, operative, number, unit, necessary, replace, start, immediate, network.

27

о

Complete the following sentences according to the text.

1. In automatic electrical power plants using shaft generators additional shaft generator control unit is installed for. ... 2. The generator then rotates at the correct speed although without excitation, i. e. ... 3. The time delay for tripping the shaft generator circuit breaker can be set at... . 4. The black-out will last only about 1 s, since... . 5. When a sufficient number of diesel-driven units are in service, the shaft generator. . . .

Translate the following sentences. Mind degrees of comparison.

1. This device is small, but that one is smaller. 2. This is the largest engine room I have ever seen. 3. Segment AB is longer than segment CD. 4. This procedure is not so complex as that described above. 5. The new technique is twice as effective as the old one. 6. This substance reacts one third as fast as the other one. 7. Experiential data were presented in some detail and discussed as thoroughly as possible. 8. This evidence proved not so effective as we assumed them to be. 9. A compound is considered more stable, the smaller its potential energy.

31

Translate the following word-combinations. The sequence of translation is 1, 3, 2:

1 3 2

negative grid current; small condenser leak; these measurement units; low energy content; maximum conductor temperatures; various machine parts; other transmitter components. The sequence of translation is 3. 1, 2: Supreme Soviet session; low velocity areas; electric motor construction, high frequency energy; direct current wave.

Id

32

Home exercise. Translate the following word-combinations. The sequence of translation is:

a) 1, 4, 2, 3; 1, 4, 3, 2

exact power transfer limits; normal input generator operation; every nuclear power reactor; this high energy wave; limited input voltage range; all rotating equipment problems; sufficient information processing capacity.

b) 3, 4, 1, 2; 4, 3, 1, 2