- •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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Translate the sentences paying attention to the Sequence of Tenses
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The motor accelerates if the motor torque always exceeds the load torque.
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At starting, the motor will not pull away unless the starting torque exceeds the load breakaway torque.
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If the load torque increases, the motor speed drops slightly, slip increases, stator current increases and the motor torque increases to match the load requirements.
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If the rotor speed was increased to the point that there was no slip, the induced voltage and current in the rotor fell to zero and torque output.
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If the rotor speed is increased about the mentioned one, the rotor will run faster than the rotating stator field and the rotor conductors again start to cut the lines of magnetic flux.
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When the motor torque is less than the load torque, the motor will stall.
-
Translate the following Conditional sentences
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If there were a permanent magnet inside the rotor, it would follow in synchronism with the rotating magnetic field.
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If the three windings of the stator were re-arranged to fit into half of the stator slots, there would be space for another 3 windings in the other half of the stator.
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If the rotor reached synchronous speed, the rotor windings would be moving at the same speed as the rotating flux, and the induced voltage (and current) in the rotor would be zero.
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If two supply connections were changed, the phase sequence A-C-B would result in a reversal of the direction of the rotating stator flux and the direction of the rotor.
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If the load torque increased to a point beyond Tmax, the motor would stall.
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If the acceleration torque were constant over the acceleration period the formula of the total acceleration time would simplify.
Transformer Text a
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Read and memorize words and word-combination
transformer – трансформатор
transfer – передавати
coupling – зв’язок, взаємодія
magnetic coupling – магнітна взаємодія
core – стержень, сердечник (осердя), стрижень
winding – обмотка
magnetic flux – магнітний потік
induce – індукувати
range - діапазон
coupling transformer – трансформатор зв’язку
microphone – мікрофон
unit – пристрій, апарат, установка
gigawatt - гігават (109)
interconnection - міжз’єднання
power grid – електрична мережа живлення
hypothetical – гіпотетичний
magneto motive force (MMF) – магніторушійна сила
link - зв’язувати
coil – виток, обмотка
primary winding – первинна обмотка
secondary winding – вторинна обмотка
mutual inductance – взаємоіндукція
electro magnetic induction – електромагнітна індукція
apply – прикладати, подавати
turn – виток
produce – створювати
electro motive force (EMF) – електрорушійна сила
drive – рухати
magnetic circuit – магнітне коло (ланцюг)
back electro motive force – проти електрорушійна сила (проти е.р.с)
proportional – пропорційний
rate – швидкість.
-
Make sure that you know these words and word combinations.
derivative – похідна
derivative … with respect to …– похідна ... по ...
number – кількість
substitute – підставляти
solve – вирішувати
respectively – відповідно
ratio – відношення, співвідношення
turns ratio – коєфіціент трансформації
voltage ratio – коєфіціент трансформації по напрузі
alternatively – інакше
inversely proportional – обернено пропорціональний
cause – заставляти
tend – намагатися
cancel – знищувати
reduce – зменшувати
increase – збільшувати
offset – зміщувати
feed – подавати, живити
deliver – подавати, живити
flux density – густота потоку
steady – постійний
resistive load – активне навантаження
supply – подавати
quantity – величина, кількість
relation ship – співвідношення, залежність
equation – рівняння
universal – універсальний
root mean square(rms) – середньоквадратичний
frequency – частота
hertz – герц
cross-sectional area – площа поперечного розтину
peak – пік, максимум
tesla – тесла.