This paper reviews the up-to-date research activities on electrical insulation techniques
under repetitive surge voltages with steep wavefront for low voltage inverter-fed motors …

The use of static frequency converters, which have a high switching frequency, generates
voltage pulses with a high rate of change over time. In combination with cable and motor …

It has been observed that voltage waveforms generated by power electronic converters may
affect significantly the reliability of electric motor insulation. Since partial discharges are …

The urgent need for electric vehicles is the leading research to safer operation of electric
motors on high frequency impulsive voltages. For low voltage electric vehicles partial …

The stator insulation breakdown is a major cause of ac machine failures. Ground insulation
defaults are easily detected by classical systems based on leakage current measurements …

Aging of polymeric and composite materials is reviewed mainly from the standpoint of their
interfacial performance. Insulating materials can be divided into simple polymers and …

Insulating materials and insulation systems design have been gaining more attentions as
more electrical machines tend to operate in harsher environments for various applications …

This paper deals with Partial Discharge (PD) detection in Pulse Width Modulation (PWM)
inverter fed electric motors. The aim of this work is to detect PD activity in random wound …

The endurance of polymeric insulation foil is investigated under a mixed medium-voltage
stress (DC+ medium-frequency rectangular pulse) by means of accelerated lifetime testing …

The transitions of partial discharge (PD) behavior with aging in a void under ac voltages with
sine wave and square wave were observed. The transition of the PD magnitude with aging …