TY - GEN
T1 - Effect of Pressure on the Electrical Treeing and Discharge Characteristics of Epoxy Resin
AU - Oancea, Maria-Irina
AU - Han, Qinghua
AU - Chen, Tony
PY - 2024/8/12
Y1 - 2024/8/12
N2 - The move towards more electric aircraft (MEA) is driven by the need to tackle the increasing level of greenhouse gas emissions in the aviation sector. MEAs operate at low-pressure, high-altitude environment, where the increase in operating voltage will make the insulation system more susceptible to defects. Electrical treeing and the partial discharge (PD) associated with it, is one of the pre-cursors leading to untimely failure of solid dielectrics. This work investigates the influence of air at 0.2 bar and 1 bar on the propagation of electrical trees and the PD activity in an epoxy resin needle-plane sample under 6 kVRMS. It was found that a pressure of 0.2 bar usually inhibits the tree propagation when compared to 1 bar. The permeation process of a test sample under 0.2 bar air led to short branches of tree growth along the chamfer edge of the needle tip.
AB - The move towards more electric aircraft (MEA) is driven by the need to tackle the increasing level of greenhouse gas emissions in the aviation sector. MEAs operate at low-pressure, high-altitude environment, where the increase in operating voltage will make the insulation system more susceptible to defects. Electrical treeing and the partial discharge (PD) associated with it, is one of the pre-cursors leading to untimely failure of solid dielectrics. This work investigates the influence of air at 0.2 bar and 1 bar on the propagation of electrical trees and the PD activity in an epoxy resin needle-plane sample under 6 kVRMS. It was found that a pressure of 0.2 bar usually inhibits the tree propagation when compared to 1 bar. The permeation process of a test sample under 0.2 bar air led to short branches of tree growth along the chamfer edge of the needle tip.
U2 - 10.1109/icd59037.2024.10613183
DO - 10.1109/icd59037.2024.10613183
M3 - Conference contribution
BT - The International Conference of Dielectrics (ICD)
ER -
