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Analyzing of relevant fault type for calculation of minimum fault current magnitude on distribution transformer primary side (CROSBI ID 164075)

Prilog u časopisu | izvorni znanstveni rad

Boras, Vedran ; Barić, Tomislav ; Muharemović, Alija Analyzing of relevant fault type for calculation of minimum fault current magnitude on distribution transformer primary side // Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku, 17 (2010), 1; 3-15

Podaci o odgovornosti

Boras, Vedran ; Barić, Tomislav ; Muharemović, Alija

engleski

Analyzing of relevant fault type for calculation of minimum fault current magnitude on distribution transformer primary side

The paper analyses the influence of three-phase transformer connections and several types of bolted shunt faults (short circuits), which occur on a distribution transformer secondary side as well as simultaneous faults in determining of relevant fault type for calculation of minimum fault current magnitude on the transformer primary side, which will be relevant for the selection of fuse-links minimum breaking current of high- voltage fuses for transformer circuit applications. The two transformer connections: delta primary-grounded star secondary (denoted as Dyn) and star primary-grounded interconnected star secondary, also known as zig-zag (denoted as Yzn) are enclosed in the carried out analysis. In this paper a simultaneous fault involves the shunt fault on the transformer secondary side with blown fuse in any phase on the transformer primary side. Calculation of these faults is carried out by means of the symmetrical components method in per- unit.

fuse-links minimum breaking current ; high-voltage fuses ; shunt fault ; simultaneous fault ; three-phase transformer connection

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Podaci o izdanju

17 (1)

2010.

3-15

objavljeno

1330-3651

Povezanost rada

Elektrotehnika

Poveznice
Indeksiranost