Title :
New specs for ASD motors
Author :
Stranges, Meredith K W ; Stone, Greg C. ; Bogh, Dennis L.
Author_Institution :
GE Consumer & Ind., Peterborough, Ont.
Abstract :
The two main issues in pulse-width modulated ASD motors namely: stress concentration at slot exits and at junctions between stress grading and corona protection materials, and winding insulation aging due to partial discharge and/or dielectric heating, often intensified between turns as well as across the main-wall of the stator coils. This paper explores the IEC-60034-18-41 and IEC-60034-18-42 technical specifications for inverter duty motor insulation. These specifications describe the qualification and acceptance tests for both low and medium voltage motor windings in order to ensure reliability
Keywords :
IEC standards; PWM invertors; machine insulation; machine protection; machine testing; machine windings; motor drives; partial discharges; variable speed drives; IEC-60034-18-41 specification; IEC-60034-18-42 specification; acceptance test; corona protection materials; dielectric heating; inverter; partial discharge; pulse-width modulated ASD motors; qualification test; reliability; slot; stator coils; stress concentration; stress grading; winding insulation aging; Corona; Dielectric materials; Dielectrics and electrical insulation; Intensity modulation; Protection; Pulse modulation; Space vector pulse width modulation; Stator windings; Stress; Variable speed drives;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/MIA.2007.265785
