- •Memorize the words and word combinations and their equivalents.
- •Find the words and combinations of words in the text and translate the sentences containing them.
- •Read and translate the text.
- •Translate the word combinations from the text:
- •Point out the sentences in the text in which the word “to make” should be translated as “примушувати”.
- •Answer the questions.
- •Find the sentences in the text telling you about two problems facing the simple two pole dc motor. Text b Compensation for stator field distortion
- •Make sure that you know these words and word combinations.
- •Read and translate the text.
- •Answer the questions.
- •Text c Dynamo Design Variations
- •Read and memorise the words and word combinations.
- •Permanent magnet motor – двигун з постійним магнитом
- •Read and translate the text.
- •Answer the questions.
- •Listen to the words and word combinations from the text. Pay attention to their meaning.
- •Memorize the words and word combinations and their equivalents.
- •Read and translate the text.
- •Match the words and word combinations (a-e) to the sentences (1-5)
- •Answer the questions to the text
- •Say if the statement to the text is true or false
- •Translate the sentences paying attention to Indefinite Tenses in Active and Passive. Correct the mistakes in the sentences.
- •Text b Basic construction
- •Listen to the words and word combinations from the text. Pay attention to their meaning.
- •Memorize the words and word combinations and their equivalents
- •Read and translate the text
- •Match the words and word combinations (a-e) to the sentences (1-5)
- •Answer the questions to the text
- •Say if the statements to the text are true or false
- •Translate the sentences paying attention to Indefinite Tenses in Active and Passive. Correct the mistakes in the sentences.
- •Text c Principles of operation
- •Listen to the words and word combinations from the text. Pay attention to their meaning.
- •Find the words and combinations of words in the text and translate the sentences containing them.
- •Memorize the words and word combinations and their equivalents.
- •Read and translate the text
- •Match the words and word combinations (a-f) to the sentences (1-6)
- •Answer the questions to the text
- •Define the functions of Participle I and Participle II in the following sentences
- •Say, which of the sentences are in the Active and which are in the Passive Voice
- •Translate the sentences paying attention to the Sequence of Tenses
- •Translate the following Conditional sentences
- •Transformer Text a
- •Read and memorize words and word-combination
- •Make sure that you know these words and word combinations.
- •Read and translate the text.
- •Math the following English words with the Ukrainian ones.
- •Find English equivalents to the words:
- •Translate the word combinations from the text:
- •Answer the questions to the text.
- •Text b Operation at different frequencies
- •Read and memorize the words and word-combinations
- •Be sure that you know these words
- •Read and translate the text.
- •Text c Limitations
- •Make sure that you know these words and word combinations.
- •Read and translate the text.
- •Find the equivalents to the following.
- •Text d Construction
- •Read and memorise the words and word combinations
- •Read and translate the text. Cores
- •Find the equivalents to the folloving English words:
- •Point out English equivalents to the words:
- •Translate the word combinations.
- •Answer the questions.
- •Read the passage about steel cores. Retell it. Text e Windings
- •Listen to the words and word combinations from the text and memorize them.
- •Read and translate the text.
- •Match the English words and word combinations with the Ukrainian ones.
- •Insulation of windings
- •Text g Shielding
- •Supplement Speed control
- •Dc motor starters
- •Shielding
- •Autotransformers
- •Voltage transformers
- •Pulse transformers
- •3 Phase electrical power Transformer
- •3 Phase Transformer Delta and Wye Connections
- •Перелік скорочень
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Match the words and word combinations (a-e) to the sentences (1-5)
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bearings
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frequency
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squirrel cage
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AC induction motors
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single-phase
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More than half the total electrical energy used in different branches of industry is converted to mechanical energy through …
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AC induction motors can be operated either directly from the mains or from adjustable … drives.
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… AC induction motors, as compared to DC motors are much more reliable.
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Improved pre-lubricated … have extended the life of squirrel cage AC induction motors.
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… motors are more often used for domestic applications.
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Answer the questions to the text
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What kind of AC induction motors has become commonly used for variable speed drive applications?
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Are sliprings and brushes required in the modern design of the squirrel cage motors?
-
Say if the statement to the text is true or false
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3-phase AC induction motors are common for low power applications.
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Translate the sentences paying attention to Indefinite Tenses in Active and Passive. Correct the mistakes in the sentences.
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AC induction motors is used to drive mills, machine tools, compressors, conveyors, pumps, etc.
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Their applications also extends to domestic environment.
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To understand how the variable speed drive system work it is necessary to understand the principles of operation of this type of motor.
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Single-phase AC induction motor are seldom used in industrial and mining applications.
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International standardization means that motors from manufacturers has similar performance characteristics.
Text b Basic construction
-
Listen to the words and word combinations from the text. Pay attention to their meaning.
stationary – нерухомий
rotate – обертатись
stator – статор
rotor – ротор
circuit – ланцюг, коло
insulate – ізолювати
carry – проводити
steel – сталь
laminate – розщеплювати на шари, пластини
laminated steel – пластинчата сталь (шихтована)
magnetic flux – магнітний потік
outer – зовнішній
welded – зварний
sheet – лист
cast iron alloy – легований (сплавний) чавун
aluminum alloy – легований алюміній
feet – опора
flange – фланець
mount – монтувати
magnetic path – магнітопривід
set – набір, комплект
slot – проріз, паз
reduce – зменшувати
eddy current – вихровий струм
losses – втрати.
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Memorize the words and word combinations and their equivalents
eddy currents losses – втрати від вихрового струму
heating – нагрівання
winding – обмотка
cross-sectional – поперечний розтин
power rating – номінальна потужність
wound rotor – фазний ротор
shaft – вал
external – зовнішній
slipring motor – асинхронний двигун з контактними кільцями
squirrel cage rotor – коротко замкнутий ротор, ротор з білячою кліткою
bar – шина
install – установлювати
die-cast – литий
rugged – жорсткий
flow – протікати, текти
support – основа, опора, підтримувати
transmit – передавати
torque – обертаючий момент
cooling fan – охолоджуючий вентилятор
forced – примусовий
terminal – затискач, клема, вивід
terminal box – коробка зовнішніх з’єднань, розподільна коробка.