Object

Title: Modeling transients in MV resonantly grounded industrial grid during single line to ground faults

Abstract:

Medium voltage distribution power grids mostly operate with ungrounded neutral points of transformer. The philosophy about these power supply systems based on the assumption that the electrical grid is more reliable. However the practice of operation showed that currents of single phase or multiple faults to ground depend mostly on the earth capacitances of cables connected to power grid and configuration and structure in relation to the main substation buses. Moreover, this kind of arcing ground faults on the ungrounded system causes transient overvoltages several times than nominal value. In the consequence, it may be dangerous for the electrical devices connected to the power system. The article focuses on the transient impact the equipment insulation due to faults in the middle voltage industrial grid with adjustable speed drives. The examination results of transient voltages across the system was presented. The Matlab/ Simulink Software was used to modeling system behavior during intermittent faults.

Publisher:

Publishing House of Poznan University of Technology

Identifier:

oai:repozytorium.put.poznan.pl:467540

ISBN/ISSN:

1897-0737

DOI:

10.21008/j.1897-0737.2019.98.0006

Language:

pol ; eng

Relation:

Strona czasopisma Politechnika Poznańska Wydział Elektryczny i Instytut Elektrotechniki i Elektroniki Przemysłowej

Rights Management:

Politechnika Poznańska

Format:

pp. 65-75

Rights:

wszystkie prawa zastrzeżone

Access rights:

dla wszystkich w zakresie dozwolonego użytku

Rights holder:

Politechnika Poznańska

Digital object format:

application/pdf

Object collections:

Last modified:

Jun 14, 2019

In our library since:

Jun 14, 2019

Number of object content hits:

8

Number of object content views in PDF format

1

All available object's versions:

http://repozytorium.put.poznan.pl/publication/559710

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