Determining the harmonic effects of nonlinear loads on parallel connected transformers in terms of power factor

Author

Taci, M. Salih ; Doseyen, Ihsan ; Gorgun, Haiuk

Author_Institution

Dept. of Electr. Eng., Yildiz Tech. Univ., Istanbul, Turkey

fYear

1998

fDate

35964

Firstpage

129

Lastpage

132

Abstract

This paper presents determination of the actual values of the apparent resistance and reactance components of two loaded single phase transformers operated in parallel, and how the load is distributed between them. The input voltage waveform and both the individual and total input current waveforms of the two transformers were obtained with the aid of an ADC card, and their harmonics through a harmonic analysis programme. The current and voltage harmonics were then used to find the R and X parameters of each transformer for each harmonic. Then the effective R and X values of each transformer were determined

Keywords

analogue-digital conversion; electric reactance; electric resistance; harmonic distortion; load (electric); power factor; power system harmonics; power transformers; ADC card; R parameters; X parameters; apparent resistance; current harmonics; harmonic analysis programme; harmonic effects determination; input voltage waveform; load distribution; load sharing; loaded single phase transformers; nonlinear loads; parallel connected transformers; parallel operation; power factor; reactance components; total harmonic distortion; total input current waveforms; voltage harmonics; Coils; Copper; Impedance; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Quality '98

Conference_Location

Hyderabad

Type

conf

DOI

10.1109/PQ.1998.710366

Filename

710366