three resistors of 100 ohms are connected in star across 400v supply. calculate current at each resistor.
Answers
Resistor = 138.56 Ohm
Given:
Three similar resistors are connected in star across 400 V, 3-phase lines.
The line current is 5 A.
To find:
The value of each resistor.
Formula used:
Line voltage in star connection = × Phase voltage
Ohms law V = IR
Where R = resistor
Explanation:
Given that,
Phase voltage = 400 V
Line voltage in star connection = × Phase voltage
Line voltage in star connection = × 400
Line voltage in star connection = 692.82 V
From Ohms law
V = IR
692.82 = 5 × R
Resistor = 138.56 Ohm
To learn more....
1)Write relation for power drawn in three phase star connected load
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