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Hitachi

Hitachi Industrial Products, Ltd.Medium Voltage Multi-level IGBT Drives

Main components of HIVECTOL-HVI are the “Transformer Section” , “Inverter Section” and “Control Section”.
Inverter Section is composed of a series-connected “Inverter Cell”.
Isolation Transformer is a phase shifted multi-winding type.
Control Unit has functions such as IGBT inverter switching, an interface to external equipment, etc.