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When a 2300/230 V, 50 kVA, 50 Hz transformer is connected as an auto transformer to supply a 2300 V circuit form 2530 V source, the kVA rating of the auto – transformer will be _______(in kVA)
Correct answer is between '549,551'. Can you explain this answer?
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Verified Answer
When a 2300/230 V, 50 kVA, 50 Hz transformer is connected as an auto t...
kVA rating of transformer = 50 kVA
Auto transformer rating = 2300 / 2530
kVA rating of auto transformer
Auto transformer rating = 2300 / 2530
kVA rating of auto transformer
Most Upvoted Answer
When a 2300/230 V, 50 kVA, 50 Hz transformer is connected as an auto t...
Transformer will be 44.74 kVA.
To calculate this, we can use the formula for auto transformer rating:
kVAauto = (V1/V2)^2 x kVAoriginal
Where:
V1 = voltage of the primary winding (in this case, 2530 V)
V2 = voltage of the secondary winding (in this case, 2300 V)
kVAoriginal = original kVA rating of the transformer (in this case, 50 kVA)
Substituting the values, we get:
kVAauto = (2530/2300)^2 x 50
kVAauto = 1.23^2 x 50
kVAauto = 1.5129 x 50
kVAauto = 44.74 kVA
Therefore, the kVA rating of the auto transformer is 44.74 kVA.
To calculate this, we can use the formula for auto transformer rating:
kVAauto = (V1/V2)^2 x kVAoriginal
Where:
V1 = voltage of the primary winding (in this case, 2530 V)
V2 = voltage of the secondary winding (in this case, 2300 V)
kVAoriginal = original kVA rating of the transformer (in this case, 50 kVA)
Substituting the values, we get:
kVAauto = (2530/2300)^2 x 50
kVAauto = 1.23^2 x 50
kVAauto = 1.5129 x 50
kVAauto = 44.74 kVA
Therefore, the kVA rating of the auto transformer is 44.74 kVA.
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When a 2300/230 V, 50 kVA, 50 Hz transformer is connected as an auto transformer to supply a 2300 V circuit form 2530 V source, the kVA rating of the auto – transformer will be _______(in kVA)Correct answer is between '549,551'. Can you explain this answer?
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