Title :
Derating of induction motors operating with a combination of unbalanced voltages and over or undervoltages
Author :
Pillay, Pragasen ; Hofmann, Peter ; Manyage, Marubini
Author_Institution :
Clarkson Univ., Potsdam, NY, USA
fDate :
12/1/2002 12:00:00 AM
Abstract :
This paper examines the proper application of induction machines when supplied by unbalanced voltages in the presence of over- and undervoltages. Differences in the definition of voltage unbalance are also examined. The approach adopted is to use NEMA derating for unbalanced voltages as a basis to include the effects of undervoltages and overvoltages, through motor loss calculations.
Keywords :
induction motors; overvoltage; NEMA derating; equivalent circuit; induction motors derating; motor loss calculations; overvoltages; positive sequence; unbalanced supplies; unbalanced voltages; undervoltages; Algebra; Circuits; Cities and towns; Electricity supply industry; Helium; Induction machines; Induction motors; Power cables; Surges; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2002.805228
