고압전동기 고정자권선의 턴단락 및 소선단락 써지시험 특성분석

Surge Property Analysis for Shorted Turn and Shorted Strand in High Voltage Motor Stator Winding

This paper is purpose to understand the surge property for the shorted turn or shorted strand in high voltage motor stator windings. a shorted turn in high voltage motor windings causes a huge circulating current. and overheat windings, consequently burns the motor. a few shorted strands not cause winding failure immediately, but they increase the winding loss and temperature increase due to contact resistance. We carried out the surge test for three cases, normal winding, shorted turn winding and shorted strand winding. and we analyzed the test result.