Next Article in Journal
Greedy Algorithm for Minimizing the Cost of Routing Power on a Digital Microgrid
Next Article in Special Issue
A New Approach to Include Complex Grounding System in Lightning Transient Studies and EMI Evaluations
Previous Article in Journal
Driven Performance of Electric Vehicles in Edinburgh and Its Environs
Previous Article in Special Issue
Empirical Conductivity Equation for the Simulation of the Stationary Space Charge Distribution in Polymeric HVDC Cable Insulations
Open AccessArticle

Design of Cable Termination for AC Breakdown Voltage Tests

1
Center of Electrical Engineering and Informatics, Federal University of Campina Grande, Campina Grande 58429900, Brazil
2
Department of Electrical Engineering, Federal University of Campina Grande, Campina Grande 58429900, Brazil
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE 2018), Athens, Greece, 10–13 September 2018; pp. 1–4.
Energies 2019, 12(16), 3075; https://doi.org/10.3390/en12163075
Received: 3 July 2019 / Revised: 29 July 2019 / Accepted: 30 July 2019 / Published: 9 August 2019
International standards prescribe overvoltage tests to evaluate the insulating material performance of high-voltage cables. However, it is difficult to manage the electric fields at the cable ends when laboratory measurements are carried out because surface and external discharges occur at the cable termination. Therefore, this paper presents a procedure for designing cable terminations to reduce the electric field at the cable ends to appropriate levels even in the case of overvoltage tests. For this purpose, computer simulations of electric field distribution using the finite element method (FEM) were performed. A 35 kV cable model was employed as a sample. An voltage with RMS (root mean square) value of 300 kV was used as an overestimate of breakdown voltage for the internal insulating material. The cable termination model obtained through the proposed methodology allows an electric field reduction in air, preventing the occurrence of external discharges, and thus permitting the breakdown voltage measurement of the cable’s inner insulation. View Full-Text
Keywords: cable termination; electric field; high-voltage test; stress relief cone cable termination; electric field; high-voltage test; stress relief cone
Show Figures

Figure 1

MDPI and ACS Style

Andrade, A.F.; Costa, E.G.; Andrade, F.L.; Soares, C.S.; Lira, G.R. Design of Cable Termination for AC Breakdown Voltage Tests. Energies 2019, 12, 3075.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop