KVAR Comparison of Single Phase PFC Capacitors in Delta or in series
, by Daniel Rehe, 1 min reading time
In this blog we will show the calcultation for connecting single phase capacitors in 3 phase networks.
KVAR Comparison of Single Phase PFC Capacitors in Delta or in series
In this blog we will show the calculation for connecting single phase capacitors in 3 phase networks.
Firstly the Kvar formula is Q=2π*fn*Un*Un*C where Q = kVAr
Capacitor parallel rule
Capacitor series rule
1) 250kvar 6.58uF 11000V, 50Hz -> 250kvar @6.58uF
1A) uF measured L-L Connected in Delta
= 9.87uF
1B) uF measured L-L Connected in Star
= 3.29uF
1C) kVar @ 11000V Connected in Star
250000 = X*0.00000987
X = 25329280650
KVAR = 25329280650*0.00000329 = 83.333 KVAR
2) 200kvar 5.26uF 11000V, 50Hz
2A) uF measured L-L Connected in Delta
= 7.89uF
2B) uF measured L-L Connected in Star
= 2.63uF
2C) kVar @ 11000V Connected in Star
200000 = X*0.00000789
X = 25348542460
KVAR = 25348542460*0.00000263 = 66.66 KVAR
Should you have further questions, feel free to ask the friendly team at Fastron Electronics