Analysis of the effect of exceeding the allowable values of selected parameters of the receivers on operating conditions of a low voltage network

• Autorzy: Nawrowski R. , Stein Z. , Zielińska M.
• Języki publikacji: EN

Abstrakty

EN

Minimum value of the power factor of an electric power network is constrained and its value is determined by the regulations. Customer of electric power is responsible for maintenance of proper value of the power factor. On the other hand, minor electric power customers are not charged with any financial consequences for disregarding proper value of the parameter, in spite of the fact that the distribution companies are charged with the cost of increased power losses. Moreover, the degree of voltage asymmetry of electric power network is constrained and its value is defined by the regulations too. Asymmetry of output voltage of power transformer is caused chiefly by asymmetric loads. The paper presents a proposal of estimating additional power losses caused by reduced value of the power factor and analyzes the effect of various types of load asymmetry on the value of the asymmetry factor. The proposals and analyzes are carried out with the help of Mathcad software.

Słowa kluczowe

EN

low voltage network; electric power system; degree voltage asymmetry; transformer load asymmetry; synchronous generator

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2013
• Tom: Vol. 11
• Strony: 128--140
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Nawrowski R.

• Poznań University of Technology, 60-965 Poznań, ul. Piotrowo 3a

autor

Stein Z.

• Poznań University of Technology, 60-965 Poznań, ul. Piotrowo 3a

autor

Zielińska M.

• Poznań University of Technology, 60-965 Poznań, ul. Piotrowo 3a

Bibliografia

• [1] Stein Z. Eksploatacja maszyn elektrycznych. Rozdz. 5.6 w Poradniku Inżyniera Elektryka, WNT, Warszawa 2007.
• [2] Stein Z. Zielińska M. Wykorzystanie programu MC AD do badania wykorzystania mocy znamionowej silników indukcyjnych w warunkach niesymetrii 3-fazowego układu napięć. Materiały ZKwE, Poznań. 2008
• [3] Stein Z. Zielińska M. Zagadnienia kompensacji mocy biernej w zakładach przemysłowych. Materiały ZKwE, Poznań, 2008.