Calculating Dryformer leakage reactance using analytical and finite element methods

Author

Karimzadeh, F. ; Akbari, A. ; Ardebili, M.

Author_Institution

K.N. Toosi Univ. of Technol., Tehran, Iran

fYear

2011

fDate

11-13 May 2011

Firstpage

1

Lastpage

5

Abstract

Dryformer is an oil-free power transformer that its windings are made of high voltage cross-linked polyethylene (XLPE) cables. Leakage reactance calculation is a key step in transformer design process. Special structure of Dryformer makes conventional analytical methods useless for leakage reactance calculation in this type of transformer. In this paper, an analytical method is proposed for calculating leakage reactance of Dryformer based on its winding structure. The validity of proposed model is verified by means of 3D and 2D finite element models.

Keywords

finite element analysis; power cables; power transformers; FEM; XLPE cables; dryformer leakage reactance calculation; finite element models; high voltage cross-linked polyethylene cables; oil-free power transformer; transformer design process; winding structure; Magnetic cores; Magnetic flux; Mathematical model; Power transformer insulation; Solid modeling; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering, Energy and Electrical Drives (POWERENG), 2011 International Conference on

Conference_Location

Malaga

ISSN

2155-5516

Print_ISBN

978-1-4244-9845-1

Electronic_ISBN

2155-5516

Type

conf

DOI

10.1109/PowerEng.2011.6036476

Filename

6036476