Title :
An actively cooled high power, high frequency transformer with high insulation capability
Author :
Heinemann, Lothar
Author_Institution :
ABB High Voltage Products, Hanau, Germany
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989270
