Space charge controlled electric field preceding inception of electric tree in XLPE at AC voltage
Paper i proceeding, 2015
Electric fields associated with dynamic space charges injected from metallic needle electrode immersed into XLPE sample are analyzed by means of computer simulations. Field distributions in the material are calculated utilizing bipolar charge transport model. It is shown that the accumulated space charge becomes significant with time and affects the electric field distribution in the sample. The obtained magnitudes and profiles of the resulting fields are discussed focusing on possible mechanisms of electric tree inception in the material.
charge transport
electric field
space charge
tree inception
electric tree
Författare
Y. Zheng
Fuzhou University
Yuriy Serdyuk
Chalmers, Material- och tillverkningsteknik, Högspänningsteknik
Stanislaw Gubanski
Chalmers, Material- och tillverkningsteknik, Högspänningsteknik
Proceedings of the 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, 19-22 July 2015
132-135
978-1-4799-8903-4 (ISBN)
Ämneskategorier
Elektroteknik och elektronik
DOI
10.1109/ICPADM.2015.7295226
ISBN
978-1-4799-8903-4