Question
QUESTION 2 (12 marks)
A single-story factory has a 1.5 MVA, 22kVIASV, ONAN, DYN11 distribution transformer
to provide electricity for the factory.
(i) Calculate the current supplying to the factory
A single-story factory has a 1.5 MVA, 22kVIASV, ONAN, DYN11 distribution transformer
to provide electricity for the factory.
(i) Calculate the current supplying to the factory
Ask by Sherman Bright. in Singapore
Dec 07,2024
Upstudy AI Solution
Tutor-Verified Answer
Answer
The current supplied to the factory is approximately 39.2 A.
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Beyond the Answer
To calculate the current supplying to the factory, you can use the formula for three-phase power:
P = √3 × V × I
Where:
- P is the power in watts (1.5 MVA = 1,500,000 VA)
- V is the line voltage (22 kV = 22,000 V)
Rearranging the formula to solve for I:
I = P / (√3 × V)
Substituting the values:
I = 1,500,000 / (√3 × 22,000)
Now calculating that gives:
I ≈ 39.2 A
So, the current supplying the factory is approximately 39.2 Amperes.