The Emerson GM150CY/150A is a medium - voltage converter. It has a power rating of 10 – 24 MVA (IGCT). For output, it offers 3 - phase AC 3.3 kV (IGCT Water; Tandem configuration: Water 2 x 3.3 kV). The input voltage operates at 50 / 60 Hz ± 3%, with an output frequency range of 0 – 250 Hz. Protection classes vary: Air - cooled models are IP22 / IP42, while Water - cooled ones are IP43 / IP54. It can reach a maximum speed of 4800 rpm and handle up to 18 MW of power.