Original scientific paper
The Origins of Shaft Currents in Squirell-Cage Low-Voltage Induction Machines
Stjepan Štefanko
Marijan Bogut
Ivan Kurtović
Milan Kovačević
Milorad Momić
Abstract
Possible origins of shaft currents in squirrel-cage low-voltage induction machines are analysed. The mechanism of generation of shaft currents fundamental frequency and slip frequency at 2-pole and 4-pole machines is explained, as well the influence of broken rotor bars or end rings on shaft currents.
Keywords
AC machines; induction motors; diagnostics; measurements
Hrčak ID:
4389
URI
Publication date:
27.1.2006.
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