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Q#1
Transmission and Distribution
GATE EE 2025
NAT
+2 marks
-0 marks
Using shunt capacitors, the power factor of a 3 -phase, 4 kV induction motor (drawing 390 kVA at 0.77 pf lag) is to be corrected to 0.85 pf lag. The line current of the capacitor bank, in A, is _________ (round off to one decimal place).
Explanation:
Induction Motor: 
,
After correcting capacitor bank, 
.
From above phasor, 
complex power drawn by motor
complex power drawn by total Load (motor + capacitor bank)
Reactive power supplies by capacitor, 
Line current of capacitor bank =9.05 A
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