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Measuring PDIV with 50 Hz sinusoidal waveforms to find what happens using wide bandgap devices having slew rates of x 100 V/ns can give misleading results. Since PDIV tests using wide bandgap devices offers contradicting results, a probabilistic model is proposed to figure the probability density function of PDIV results. This is an intermediate step developing a statistical procedure enabling a more...
The design of the insulation for inverter-fed induction motors is chiefly empirical. In general, a commercial conductor is selected based on experience. Qualification of motor insulation is carried out according to the IEC Std. 60034-18-41. However, qualification might be time consuming. Therefore, an approach based on a preliminary screening of alternative conductors would be useful. Goal of this...
According to the IEC 60034-18-41, the reliability of inverter-fed motor electrical insulation must be assessed through qualification tests with stress levels based on empirical assumptions. For purely organic (Type 1) electrical insulation systems, the inception of partial discharges within the insulation systems is the end-life criterion. The aim of this paper is to start a work in the direction...
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