2. Read and translate the adverbial clause of place.

1. I will never forget Seattle where I spent so many wonderful summers. 2. We'd like to spend our holiday where it's warm. 3. I don't know where she's from. 4. Wherever he goes, he's always welcome. 5. I have put it where I can find it again. 6. They can stay where they are. 7. Wherever you live. 8. I will come to that place to live. 9. He led the caravan, wherever he wanted to go. 10. You can paste it wherever you like to be. 11. Let him be arrested wherever he may be found. 12. Let us go to where they asked us to wait.

3. Define the adverbial clauses: of place or of time.

1. We will finish before he arrives. She (had) left before I telephoned. 2. He was standing where he always had stood, on the rug before the living-room fire. 3. We will finish after he comes. From where he stood he could see nothing. 4. She ate after I (had) left. 5. She began cooking while I was finishing my homework.

6. As I was finishing my homework, she began cooking. 7. By the time he finished, I had cooked dinner.

8. Wherever they came people greeted them enthusiastically. 9. We will have finished our homework by the time they arrive. 10. We waited until he finished his homework. 11. Why can’t we go where it’s warm? 12. I'll wait till you finish. 13. He will let us know as soon as he decides (or as soon as he has decided). 14. He took a chair whence he could see the street. 15. As soon as I hear from Tom, I will give you a telephone call.

Unit 8. Synchronous machines. Lesson 10.

1. Find the equivalents of following word combinations.

Minor changes демпферная обмотка

Field remains energized полцикла

To be mounted on the shaft вращающееся поле постоянной величины

Squirrel-cage winding незначительные изменения

Copper bar обмотка возбуждения остается под нагрузкой

Damper winding монтироваться на валу

Rotating field of constant magnitude в простое, не работающая машина

One half cycle медная пластина

At standstill обмотка типа «беличья клетка»

2. Complete the sentences with words given in previous exercise and translate them into Russian.

1. Since a dc shunt motor is electrically and magnetically identical with a shunt generator, the shunt dynamo may be operated either as a motor or a genera­tor, with only _____ in the voltage ratings.

2. If the rotor is already moving at synchronous speed, the rotor will move through 180 electrical degrees during the _____ that the current in the conductor takes to reverse.

3. A dc generator may _____ of the motor to ex­cite the field.

4. This short-circuited winding on the rotor is known as the _____.

5. The ends of ____ embedded in the slots are short-circuited.

6. If the mechanical power supplied to a rotating alternator is removed while the dc_____, torque will be developed.

7. With three-phase voltage applied to the armature, a _____ is therefore produced.

8. In addition to the exciting winding, a synchronous motor often has _____ in the rotor.

9. If both rotor and stator are excited, the synchronous motor develops no torque_____.