An actively cooled high power, high frequency transformer with high insulation capability

Author

Heinemann, Lothar

Author_Institution

ABB High Voltage Products, Hanau, Germany

Volume

1

fYear

2002

fDate

2002

Firstpage

352

Abstract

An actively cooled high power, high frequency transformer with high insulation capability for use in a high power multilevel converter is discussed. The transformer is designed for a power level of 350 kW and is realized with amorphous core material and coaxial windings. Special attention is paid to the insulation problem, since the dielectric losses and the influence of the voltage waveform with very steep edges have to be investigated more in detail to guarantee a long lifetime of the device

Keywords

cooling; high-frequency transformers; power convertors; power transformer insulation; transformer cores; 350 kW; actively cooled high power transformer; amorphous core material; coaxial windings; dielectric losses; high frequency transformer; high insulation capability; high power multilevel converter; steep edge voltage waveform; DC-DC power converters; Dielectric losses; Dielectrics and electrical insulation; Frequency conversion; Hafnium; Power distribution; Power transformer insulation; Power transformers; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE

Conference_Location

Dallas, TX

Print_ISBN

0-7803-7404-5

Type

conf

DOI

10.1109/APEC.2002.989270

Filename

989270