Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2001.04a
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- Pages.67-68
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- 2001
Operation properties of high $T_c$ superconductive current limiting fuse
고온 초전도 한류퓨즈의 동작특성
- Choi, Hyo-Sang (Korea Electric Power Research Institute (KEPRI)) ;
- Hyun, Ok-Bae (Korea Electric Power Research Institute (KEPRI)) ;
- Kim, Hye-Rim (Korea Electric Power Research Institute (KEPRI)) ;
- Hwang, Si-Dole (Korea Electric Power Research Institute (KEPRI)) ;
- Park, Kwon-Bae (Korea Electric Power Research Institute (KEPRI))
- Published : 2001.04.19
Abstract
We present the basic properties of a superconductive current limiting fuse (SCLF) based on YBCO/Au films. The SCLF consists of meander type YBCO stripes covered with an Au layer for current shunt. The fault current was first limited to a designed value in less than 0.4 msec by resistance development in YBCO/Au upon quenching. This enables the SCLF to transfer small fault power and the suppressed current was sustained for more than 0.5 msec while Au layer melting and arcing. The arcing time was less than 2.5 msec, that is short enough to do self-interruption.
Keywords