Description Medium-voltage variable speed drive for AC motor Output voltage range: 2300 V - 3300 V （4160 V - 6600 V as an option） Power range: 0.5 - 10 MW Frequency range: 0 - 60 Hz as standard （140 Hz as an option） Incoming supply: Any type of medium-voltage line supply Cooling: Air and water, with redundancy of cooling system （fan or pump） Technology: Voltage source inverter Input stage: 12/24 pulse input rectifier Output stage: Neutral point clamped （NPC） 3-level voltage source inverter, with high-voltage IGBT Electrical braking solutions: Regenerative braking via active rectifier or braking by chopper and resistor Compatibility with new and existing motors Efficiency: Approximately 99%