Garat Posted December 7, 2007 Report Share Posted December 7, 2007 Hello to all, I am designing a VFD of 10KW rating. I want to know, how to select the inrush resistor.Is there any design method is available. My capacitor bank is 2200ufd/450V 4 nos ( 2sets of 2 capacitors in series). Input voltage is 3 -phase up to 500V ac. Right now I am using a 500 ohms/25W resistor, but at higher input voltages, the resistor is getting hot. Please any body knows the selection criteria of Inrush resistor. Garat Link to comment Share on other sites More sharing options...
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