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The full-load copper-loss and iron loss of a transformer are 6400W and 5000W respectively. The copper-loss and ironloss at half load will be, respectively
- a)3200W and 2500W
- b)3200W and 5200W
- c)1600W and 1250W
- d)1600W and 5000W
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
The full-load copper-loss and iron loss of a transformer are 6400W and...
Copper loss = (1/2)2 × 6400 = 1600W Iron loss does not depend upon the load but upon the applied voltage.
Most Upvoted Answer
The full-load copper-loss and iron loss of a transformer are 6400W and...
Given:
Full-load copper-loss = 6400 W
Full-load iron loss = 5000 W
To find:
Copper-loss and iron-loss at half-load
Solution:
At full-load, total losses = Copper-loss + Iron-loss
Total losses = 6400 + 5000 = 11400 W
At half-load, the copper-loss will reduce to half but the iron-loss will remain the same.
Copper-loss at half-load = 6400/2 = 3200 W
Total losses at half-load = Copper-loss at half-load + Iron-loss at half-load
Total losses at half-load = 3200 + Iron-loss at half-load
Total losses at half-load = Total losses at full-load/2 = 11400/2 = 5700 W
Iron-loss at half-load = Total losses at half-load - Copper-loss at half-load
Iron-loss at half-load = 5700 - 3200 = 2500 W
Therefore, the copper-loss and iron-loss at half-load are 3200 W and 2500 W respectively.
Hence, option D is the correct answer.
Full-load copper-loss = 6400 W
Full-load iron loss = 5000 W
To find:
Copper-loss and iron-loss at half-load
Solution:
At full-load, total losses = Copper-loss + Iron-loss
Total losses = 6400 + 5000 = 11400 W
At half-load, the copper-loss will reduce to half but the iron-loss will remain the same.
Copper-loss at half-load = 6400/2 = 3200 W
Total losses at half-load = Copper-loss at half-load + Iron-loss at half-load
Total losses at half-load = 3200 + Iron-loss at half-load
Total losses at half-load = Total losses at full-load/2 = 11400/2 = 5700 W
Iron-loss at half-load = Total losses at half-load - Copper-loss at half-load
Iron-loss at half-load = 5700 - 3200 = 2500 W
Therefore, the copper-loss and iron-loss at half-load are 3200 W and 2500 W respectively.
Hence, option D is the correct answer.
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The full-load copper-loss and iron loss of a transformer are 6400W and 5000W respectively. The copper-loss and ironloss at half load will be, respectivelya)3200W and 2500Wb)3200W and 5200Wc)1600W and 1250Wd)1600W and 5000WCorrect answer is option 'D'. Can you explain this answer?
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