Frequency of forced outages for subtransmission circuit breakers: statistical analysis of data for the period 2005-15

• Autorzy: Mbuli Nhlanhla , Sikhakhane Siyabonga , Seitshiro Modisane , Pretorius Jan-Harm

Identyfikatory

DOI

10.15199/48.2020.03.23

Warianty tytułu

PL

Częstotliwość wymuszonych przerw w dostawie napięcia – analiza danych statystycznych w okresie 2005-2015

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of the analysis of 2 124 forced outages for Eskom subtransmission circuit breakers recorded over the years 2005-15. Statistical techniques are used in the study. Firstly, the actual number of outages and outage rates are calculated and assessed for various event attributes. Further, the dependence between pairs of event attributes is evaluated graphically by plotting bivariate bar graphs and thereafter quantitatively by performing the chi-square test to assess the significance of the results. The insights gained are useful in the management of these breakers.

PL

W artykule przedstawiono analizę wymuszonych przerw w dostawie napięcia w sieci Eskom w latach 2005-2015. Przeprowadzono analizę statystyczną tych wydarzeń. Dodatkowo przeprowadzono nalizę korelacji tych zdarzeń.

Słowa kluczowe

EN

chi-square test; circuit breaker; forced outage

PL

przerwa w dostawach napięcia; wyłącznik; analiza statystyczna

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2020
• Tom: R. 96, nr 3
• Strony: 98--106
• Opis fizyczny: Bibliogr. 31 poz., tab., wykr.

Twórcy

autor

Mbuli Nhlanhla

• Eskom Holdings SoC Limited, ERIC, Lower Germiston Road, Rosherville, 2022, South Africa
• University of Johannesburg, corner Kingsway and University Road, Auckland Park, 2006, Johannesburg, South Africa

autor

Sikhakhane Siyabonga

• Eskom Holdings SoC Limited, 12 Streak Street, Nelspruit, 1200, Mpumalanga, South Africa

autor

Seitshiro Modisane

• North West University – Vaal Campus, Hendrik van Eck Boulevard, Vanderbijlpark, 1900, Gauteng Province, South Africa

autor

Pretorius Jan-Harm

• University of Johannesburg, corner Kingsway and University Road, Auckland Park, 2006, Johannesburg, South Africa

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).