The Impact Of Thermal Aging On The Electrical Endurance Of Corona-Resistant Magnet Wires
2020
Corona-resistant winding wires help to mitigate the impact of partial discharge activity in inverter-fed machines. Despite the fact they are on the market since about 20 years, it is still unclear how wires with different insulation systems should be compared. We propose a combined thermo-electrical procedure that might help to provide a more accurate ranking of the wires assuming that corona-resistant winding wires might help to prevent premature failure, but they will not be able to withstand partial discharge activity throughout the expected lifetime of the insulation (e.g. 20 years).
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