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Research on Simulation Methods of Electric Field Intensity on Surface of 10 kV Cable Joint
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Guagnzhou Power Supply CSG, Guangzhou, China
Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
- 1 Guagnzhou Power Supply CSG, Guangzhou, China
- 2 Guagnzhou Power Supply CSG, Guangzhou, China
- 3 Guagnzhou Power Supply CSG, Guangzhou, China
- 4 Guagnzhou Power Supply CSG, Guangzhou, China
- 5 Guagnzhou Power Supply CSG, Guangzhou, China
- 6 Guagnzhou Power Supply CSG, Guangzhou, China
- 7 Guagnzhou Power Supply CSG, Guangzhou, China
- 8 Guagnzhou Power Supply CSG, Guangzhou, China
- 9 Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
- 10 Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
- 11 Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
- 12 Department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
Energy and Power Engineering·Volume 12 (2020)·Pages 37–45·Published 10 April 2020·DOI10.4236/epe.2020.124B004
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Abstract
The electric field intensity (EFI) is important characteristic quantity for evaluating the internal insulation state of cable joints. Based on finite element method, this paper proposes two EFI research methods, field-circuit coupling method and equivalent circuit method. The average EFI of the inner surface of the outer semi-conducting shield can be calculated from the current in the measuring circuit. The relative error between these two methods is about 15%, which roughly proves the consistency of the two methods. Further practical application research enables online monitoring of cable joints.
KeywordsCable JointsElectric Field IntensityEquivalent Circuit MethodField-Circuit Coupling MethodFinite Element Simulation Software
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