3. A 400 V, 3-ph 4 wire star connected system supplies 3 resistive loads of 15 KW, 20 KW and 25 KW in the Red, Yellow and Blue phases respectively. Determine the current flowing in each of the four conductors.
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The line-to-line voltage is given as 400V. For a star connection, the line-to-neutral voltage \( V_L \) is given by: \[ V_L = \frac{V_{LL}}{\sqrt{3}} = \frac{400}{\sqrt{3}} \approx 230.94 \, \text{V} \] Show more…
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