Published 04/09/2025 at 1220 × 541 in On Inter-bar Currents in Induction Motors with Cast Aluminium and Cast Copper Rotors Figure 5.4: High frequency cage losses as a function of inter-bar resistivity Rtn at 75 ℃. Figure 5.4: High frequency cage losses as a function of inter-bar resistivity Rtn at 75 ℃.