Practical Transformer
Authored by Mostafa Gamal
Education
University
Used 10+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
When referring a primary impedance to the secondary side, it will be ...
multiplied by the turns ratio
multiplied by the turns ratio square
divided by the turns ratio
divided by the turns ratio square
2.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
How many passive parameters exist in any practical transformer's equivalent circuit?
4
5
6
3.
OPEN ENDED QUESTION
2 mins • 10 pts
Write the scientific expression for these passive parameters
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Answer explanation
Rc: core resistance...Xm: magnetizing reactance...Rp: primary resistance...Rs: secondary resistance...Xp: primary reactance...Xs: secondary reactance
4.
FILL IN THE BLANK QUESTION
10 sec • 10 pts
How many currents exist in the practical transformer's equivalent circuit?
5.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
How many losses exist at any practical transformer?
2
3
4
6.
OPEN ENDED QUESTION
1 min • 10 pts
Write the scientific expression for these losses
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Answer explanation
Pcor: core loss......Pcu: copper loss
7.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
What is the value of the load ratio to find the maximum efficiency?
0.5
1
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