Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection. Issue 16 (5th June 2022)

• Record Type: Journal Article
• Authors: Babaee, Abbas; Shahinfar, Kian; Shahrtash, Seyed Mohammad
• Is Part Of: IET generation, transmission & distribution. Volume 16:Issue 16(2022)
• Page Start: 3197
• Page End: 3207
• Publication Date: 2022-06-05
• Subjects: Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/gtd2.12514
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract: Industrial complexes suffer from crosstalk of Partial Discharge (PD) defects in cable terminations connected to the same medium voltage busbars. This phenomenon happens because the sheath‐ground connections of all cables of one switchboard are first fastened together and then connected to ground, which leads to PD pulses being induced from the source termination to others. In this paper, based on mathematical investigations on PD pulse propagation and by introducing an energy‐based index, a simple rule‐based procedure is proposed for discrimination between defective terminations and healthy ones connected to common busbars. The proposed procedure has been verified by simulations even when there exists noise pollution or multiple defects of different strengths.