| Title |
Insulating Design and Test of 22.9kV Class Mini-Model Transformer Considering AC Loss |
| Authors |
백승명 ; 정종만 ; 곽동순 ; 김해종 ; 석복렬 ; 김상현 |
| Keywords |
Insulation Design ; HTS transformer ; Breakdown ; Withstand voltage |
| Abstract |
This paper presents experimental data from model windings with different arrangement of coil in order to provide information to design a 22.9kV class HTS transformer. Before experiment, the composite insulation of two different type of HTS transformers are investigated. The first basic of investigation is a breakdown characteristic of liquid nitrogen and flashover characteristic on the GFRP surface under ac and impulse, The second investigation is insulation design, manufacture and test of model windings. These include a AC withstand voltage test of 50 kV rms and a lighting impulse test of 150 kV at peak. |