What the capacitor Current formula?, For 1 KVAr how amps
its required? for using the KVAr for boosting the PF Design
Calculation.( Eg: for 30 KVAr required how many KW?)
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Answer Posted / kalanidhi
Current calculation for 200 kvar capacitor
CAPACITOR VOLTAGE CALCULATION
#System Voltage (MV) : 433V (WITH +- 5%)
#Voltage drop across (Maximum) : 433 x -5% = 21.65V
Capacitors working : 411.35 Volts.
CAPACITOR CURRENT CALCULATION
KVAR Calculation at 433 Volts.
KVAR 433 Volt (433)2
= ------------ 200KVAR
(411.35)2
187489
= ----------- 200 KVAR
169208
= 1.1 x 200 KVAR = 221.59
= 221.59 KVAR
Current for 221.56 KVAR at 433 V = 221.59
------------------------ x 1000
433 x 1.732 x 0.6
= 492 Amps.
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