Slip ring arrangement (100) for transferring electric power between a stationary part (10) and a rotatable part (20) comprises annular slip rings (101. 102, 103) positioned coaxially around a centre axis (Y) at a radial distance from each other and having at least one contact surface (S1, S2). First power supply conductors (111, 112, 113) are fixedly attached to the at least one contact surface (S1, S2) of the slip rings (101, 102, 103). Sliding contact means (131, 132, 133) are in sliding contact with the at least one contact surface (S1, S2) of the slip rings (101, 102, 103). Second power supply conductors (121, 122, 123) are fixedly attached to the sliding contact means (121, 122, 123). Said sliding contact means (131, 132, 133) are stationary and said slip rings (101, 102, 103) rotate with the rotating part (20) or vice a versa.