Title :
Evaluation of LV insulating systems in inverter fed electric motors by means of partial discharges
Author :
Boscolo, Antonio ; Rabach, Germano ; Visintin, Massimiliano
Author_Institution :
Dept. of Electrotechnics, Univ. of Trieste, Trieste
Abstract :
A synthetic description of the phenomena induced by PWM inverter drive systems are reported and the parameters related to motor reliability are evaluated. The winding quality of brand new motors is addressed, specifically the integrity of the turn or the conductor insulation is checked by applying surge voltage stresses. Finally Partial Discharge (PD) measurements are carried out on an aged 800 kW motor: the outcomes are reported and discussed.
Keywords :
electric drives; electric motors; machine insulation; machine windings; partial discharge measurement; reliability; LV insulating systems; PWM inverter drive systems; conductor insulation; inverter fed electric motors; motor reliability; partial discharge measurements; partial discharges; power 800 kW; surge voltage stresses; synthetic description; winding quality; Aging; Conductors; Dielectrics and electrical insulation; Electric motors; Partial discharge measurement; Partial discharges; Pulse width modulation inverters; Stress; Surges; Voltage;
Conference_Titel :
Diagnostics for Electric Machines, Power Electronics and Drives, 2005. SDEMPED 2005. 5th IEEE International Symposium on
Conference_Location :
Vienna
Print_ISBN :
978-0-7803-9124-6
Electronic_ISBN :
978-0-7803-9125-3
DOI :
10.1109/DEMPED.2005.4662503
