Title :
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
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;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.897004
