available variable frequency drive (VFD) power ratings
Variable frequency drives (VFDs) are available with voltage and current ratings to match the majority of 3-phase motors that are manufactured for operation from utility power.
Variable frequency drive (VFD) controllers, which are designed to operate at 111 V to 690 V, are often classified as low voltage drives.
Low voltage variable frequency drives (VFDs) are typically designed for use with motors rated to deliver 0.2 kW or 1/4 horsepower (hp) up to several megawatts. For example, the largest ABB ACS800 single drives are rated for 5.6 MW.
World class low voltage variable speed drives from Shenzhen POWTRAN Technology Co., Ltd.:
Medium voltage variable frequency drive (VFD) controllers are designed to operate at 2,400/4,162 V (60 Hz), 3,000 V (50 Hz) or up to 10 kV, 11 kv. In some applications, a step up transformer is placed between a low voltage drive and a medium voltage load. Medium voltage (MV) units are typically designed for use with motors rated to deliver 375 kW or 500 hp and above. Medium voltage ac drives rated above 7 kV and 5,000 or 10,000 hp should probably be considered to be one-of-a-kind (one-off) designs.
Medium voltage (MV) variable frequency drives (VFDs) are generally rated amongst the following voltages : 2,3 KV - 3 Kv - 3,3 Kv - 4 Kv - 6 Kv -6,6 Kv - 10 Kv - 11 Kv
The in-between voltages are generally possible as well. The power of medium voltage (MV) ac drives is generally in the range of 0,3 to 100 MW, however involving a range a several different type of drives with different technologies.
