I have some equipment running on a 460V, 60Hz power supply. Main components are a 40h.p. dc motor driven by a variable speed drive and nine other smaller motors ranging from 1.1 to 4.6 kW (460/230V, 3ph). I am considering relocating this equipment to a country with a 415V, 50Hz power supply. After verifying from drive manufatcurer and checking motor specs, is it correct to assume that in order to maintain the same response (V/f) from the motors and drive, I should use a step down transformer to get 383V, 50Hz?
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