Influence of Short Time Disturbances on PD Characteristics in Hairpin Motor Insulation
Paper in proceeding, 2026
Characterization of the partial discharge stress level in high voltage insulation is important to ensure system reliability when it is exposed to complex transient waveforms. This work presents a novel method to elaborate on the electrical stress appearing in different motor insulation materials when subjected to disturbed PWM like waveforms. PD activity is analyzed for different voltage levels and different PRPD patterns are compared. The results show that intermittently occurring overstress can result in different PD exposure dependent on the insulation material employed.
Author
Thomas Hammarström
Chalmers, Electrical Engineering, Electric Power Engineering
Yuriy Serdyuk
Chalmers, Electrical Engineering, Electric Power Engineering
Proceedings of the 2026 IEEE 6th International Conference on Dielectrics (ICD)
2834-8311 (ISSN) 2834-8311 (eISSN)
1068-1071979-8-3315-3492-9 (ISBN)
2026 IEEE 6th International Conference on Dielectrics (ICD)
Southampton, United Kingdom,
Southampton, United Kingdom,
Activities within materials and diagnostics for high-voltage networks
Chalmers, 2020-01-01 -- .
Driving Forces
Sustainable development
Subject Categories (SSIF 2025)
Other Electrical Engineering, Electronic Engineering, Information Engineering
Materials Engineering
Environmental Engineering
Electrical Engineering, Electronic Engineering, Information Engineering
Areas of Advance
Transport
Energy
Materials Science
DOI
10.1109/ICD64907.2026.11665241