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

被引：38

作者：

Fuchs, EF ^{[1
]}

You, YM

机构：

[1] Univ Colorado, Boulder, CO 80309 USA

[2] Tianjin Polytech Univ, Tianjin, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2002年 / 17卷 / 04期

关键词：

(lambda(o)-i(o)) characteristic for tank; nonlinear (lambda-i); characteristic for each limb; transformers with three limbs;

D O I：

10.1109/TPWRD.2002.803702

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Modeling of three-phase transformers with three-limb cores is important, such units are very ubiquitous and are asymmetric due to the different lengths of the three limbs of the core. It is, therefore, important to devise a measuring procedure, where the (lambda-i) characteristics of the three limbs and the zero-sequence (lambda(0)-i(0)) characteristic due to the tank can be determined. A simulation program is developed so that currents at no-load and symmetric or asymmetric loads can be computed. Measured currents are compared with computed results for 2.3-kVA and 45-kVA units.

引用

页码：983 / 990

页数：8

共 5 条

[1] Modeling and simulation, and their validation of three-phase transformers with three legs under DC bias [J].