Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen

Changing the connection type of a medium voltage (MV) cable screen is linked to a decrease in power loss, although it may also lead to the generation of overvoltage in a metallic cable screen, which is hazardous for proper cable line work. In this paper, results of simulation and field researches ar...

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Main Authors: Aleksandra Schött-Szymczak, Krzysztof Walczak
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/7/1821
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author Aleksandra Schött-Szymczak
Krzysztof Walczak
author_facet Aleksandra Schött-Szymczak
Krzysztof Walczak
author_sort Aleksandra Schött-Szymczak
collection DOAJ
description Changing the connection type of a medium voltage (MV) cable screen is linked to a decrease in power loss, although it may also lead to the generation of overvoltage in a metallic cable screen, which is hazardous for proper cable line work. In this paper, results of simulation and field researches are presented, showing the range of voltages that occurs in cable screens during single-phase ground fault. There are considered to be three scenarios according to the applied type of cable screen connection. Conducted researches allow the comparison of chosen methods of simulation with an actual outcome. Results obtained during simulation and field studies lead to the conclusion that the range of overvoltage occurred in a cable screen could in fact be dangerous for the cable line’s sheath insulation without proper overvoltage protection.
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spelling doaj.art-641c78bb914d4593bbcae5233c734f542023-11-19T21:10:36ZengMDPI AGEnergies1996-10732020-04-01137182110.3390/en13071821Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable ScreenAleksandra Schött-Szymczak0Krzysztof Walczak1Faculty of Electrical Engineering, Poznan University of Technology, 60-965 Poznan, PolandFaculty of Electrical Engineering, Poznan University of Technology, 60-965 Poznan, PolandChanging the connection type of a medium voltage (MV) cable screen is linked to a decrease in power loss, although it may also lead to the generation of overvoltage in a metallic cable screen, which is hazardous for proper cable line work. In this paper, results of simulation and field researches are presented, showing the range of voltages that occurs in cable screens during single-phase ground fault. There are considered to be three scenarios according to the applied type of cable screen connection. Conducted researches allow the comparison of chosen methods of simulation with an actual outcome. Results obtained during simulation and field studies lead to the conclusion that the range of overvoltage occurred in a cable screen could in fact be dangerous for the cable line’s sheath insulation without proper overvoltage protection.https://www.mdpi.com/1996-1073/13/7/1821metallic cable screenpower losses reductionovervoltagecomputer simulationfield research
spellingShingle Aleksandra Schött-Szymczak
Krzysztof Walczak
Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
Energies
metallic cable screen
power losses reduction
overvoltage
computer simulation
field research
title Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
title_full Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
title_fullStr Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
title_full_unstemmed Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
title_short Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
title_sort analysis of overvoltages appearing in one sidedly ungrounded mv power cable screen
topic metallic cable screen
power losses reduction
overvoltage
computer simulation
field research
url https://www.mdpi.com/1996-1073/13/7/1821
work_keys_str_mv AT aleksandraschottszymczak analysisofovervoltagesappearinginonesidedlyungroundedmvpowercablescreen
AT krzysztofwalczak analysisofovervoltagesappearinginonesidedlyungroundedmvpowercablescreen