185x Filetype PPT File size 0.97 MB Source: faculty.cincinnatistate.edu
Overview Overview Variable Frequency drives (VFD) Variable Frequency drives (VFD) Application of VFDs Application of VFDs Power quality issues Power quality issues Human Machine Interface (HMI) Human Machine Interface (HMI) Standards organizations Standards organizations NEMA NEMA IEEE IEEE IEC IEC NEMA NEMA Enclosures Enclosures Motor characteristic curves Motor characteristic curves History of adjustable speed History of adjustable speed systems systems Variable pitch pulley Variable pitch pulley Motor-Generator (MG) set Motor-Generator (MG) set Eddy current clutch Eddy current clutch Solid state drives Solid state drives Problems Problems Expensive Expensive Electrical (utility) issues Electrical (utility) issues Motor wear/tear Motor wear/tear
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