Assessment of power distribution transformers electrical and thermal parameters in harmonic environments

Author

Separi, Faramarz ; Samakush, Mohammadreza ; Vahabzadeh, Ali-Reza

Author_Institution

Mazandaran Distrib. Co., Sari, Iran

fYear

2009

fDate

18-22 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

The increasing use of non-linear and solid-state based loads has caused an increase in the power system harmonic level. An increase in harmonic level causes the increase in power loss and hot spot temperature of power transformers. Hot spot temperature rise will lead to some insulation aging. Then, considering that the hot-spot temperature is the key limiting factor in transformers loading, the effect of harmonics on the hot-spot temperature is investigated using a thermal model for power transformers. Finally the effects of harmonics are inspected.

Keywords

ageing; distribution networks; power system harmonics; power transformer insulation; power transformers; thermal analysis; electrical parameter; harmonic environments; hot spot temperature; insulation aging; power distribution transformer; thermal model; thermal parameter; Aging; Electric breakdown; Harmonic distortion; Phase locked loops; Power system harmonics; Power transformer insulation; Power transformers; Temperature; Thermal loading; Transformer cores; Harmonic distortion; distribution transforers; power quality; thermal modeling; transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International

Conference_Location

Incheon

Print_ISBN

978-1-4244-2490-0

Electronic_ISBN

978-1-4244-2491-7

Type

conf

DOI

10.1109/INTLEC.2009.5351769

Filename

5351769