Influence of Harmonics on the Working Efficiency of a 6/1.2 kV Transformer in a Pit Mine

• Autorzy: Ngo Xuan Cuong , Do Nhu Y.

Identyfikatory

DOI

10.29227/IM-2021-02-12

• Języki publikacji: EN

Abstrakty

EN

Explosion-proof transformers 6/1.2 kV is important electrical equipment responsible for supplying electricity in underground mine electrical networks. A failure of this transformer will cause an interruption in the power supply and loss of safety in underground mining. Usually, explosion-proof transformers in underground mine electrical networks are designed and manufactured to work with ideal parameters such as sinusoidal currents, and the network structure is symmetrical. However, today in underground mine electric networks, many power electronics are connected to the network, such as inverters and soft starters. As a result, a current flowing through the transformer is non-sinusoidal, overloading the transformer even by working with the design specifications. This paper studies the influence of harmonics on the working efficiency of a 6/1.2 kV transformer in a pit mine. Research results suggest reasonable solutions for transformer operation to ensure longevity and not cause damage to the transformer.

Słowa kluczowe

EN

harmonics; working efficiency; transformer; pit mine

PL

wyższe harmoniczne; efektywność; kopalnie

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2021
• Tom: no. 2
• Strony: 149--156
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Ngo Xuan Cuong

• Hue University, School of Engineering and Technology, Hue, Vietnam

autor

Do Nhu Y.

• Hanoi University of Mining and Geology, 18 Vien street, Hanoi, Vietnam

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 (2021).