In this paper

exploration is made for V V connected circuit on the basis of the analyses of three phase

full wave rectification

twelve pulse circuit and three phase

full wave rectification

six pulse circuit. Comparison is made between two input modes of V V connected circuit: three phase power supply input mode and two hot line and one ground input mode. The results of experiment show that satisfactory ripple factor can be received from V V connected circuit with three phase power supply input as a capacitor filter is used.