Measurement of λ-i characteristics of asymmetric three-phase transformers and their applications

Author

Fuchs, E.F. ; You, Y.

Author_Institution

Colorado Univ., Boulder, CO, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

91

Abstract

Modeling of three-phase transformers with three limbs is important: such units are very ubiquitous and are asymmetric due to the different lengths of the three limbs. It is, therefore, important to devise a measuring procedure, where the (λ-i) characteristics of the three limbs and the zero-sequence (λ₀-i₀) characteristic due to the tank can be determined. A simulation program is developed so that currents at no-load and any symmetric or asymmetric loads can be computed. Measured currents are compared with computed results

Keywords

load (electric); power engineering computing; power transformer testing; transformer windings; λ-i characteristics; asymmetric loads; asymmetric three-phase transformers; computer simulation; measuring procedure; no-load currents; symmetric loads; three limb power transformers; zero-sequence characteristic; Couplings; Frequency; Inductance measurement; Integrated circuit measurements; Magnetic circuits; Magnetic flux; Phase measurement; Phase transformers; Transformer cores; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-6499-6

Type

conf

DOI

10.1109/ICHQP.2000.897004

Filename

897004