Finite element field analysis of nonuniform surface contaminations on high voltage windings of electric machines
- Resource Type
- Conference
- Authors
- Weeber, K.; Stutt, M.; Dymond, J.; Rehder, R.
- Source
- Proceedings of Conference on Electrical Insulation and Dielectric Phenomena - CEIDP '96 Electrical insulation and dielectric phenomena Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on. 1:40-43 vol.1 1996
- Subject
- Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Finite element methods
Surface contamination
Voltage
Conducting materials
Dielectrics and electrical insulation
Conductivity
Laplace equations
Stress
Frequency
Electric machines
- Language
The analysis of electric fields in insulation systems containing conductive materials such as surface contaminations or grading tapes requires the solution of the complex Laplace equation. This paper presents two techniques of modeling thin conductive layers on the insulation of high voltage electric machines with electrodynamic finite element simulations. Case studies are performed to illustrate the benefits of employing finite element techniques to resolve failures due to contaminated conditions of high voltage windings and to optimize the grading systems to achieve minimum stress concentrations.