Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)
- Volume 7 Issue 4
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- Pages.28-31
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- 2005
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- 1229-3008(pISSN)
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- 2287-6251(eISSN)
Short-circuit Analysis of Solenoid and Pancake Type Bifilar Winding Magnets using BSCCO tape
- Park Dong Keun (Yonsei University) ;
- Ahn Min Cheol (Yonsei University) ;
- Yang Seong Eun (Yonsei University) ;
- Yoon Il Gu (Yonsei University) ;
- Kim Young Jae (Yonsei University) ;
- Ko Tae Kuk (Yonsei University)
- Published : 2005.11.01
Abstract
To verify the feasibility of bifilar winding type superconducting fault current limiter (SFCL) using BSCCO tape, two types of magnets were fabricated and tested by short-circuit in this research. Even if the FCL using high Tc superconducting (HTS) tape has zero resistance in normal state, it needs to be wound as a bifilar winding for zero inductance. Solenoid type and pancake type bifilar winding magnets are designed and fabricated with the same length of BSCCO tape. The test system consists of AC power supply, transformer, fault switch, load and bifilar winding magnet. The applied AC voltages during fault duration, 0.1s, were from 0.5V to 20V. The test results without bifilar winding magnet were compared with those with each type magnets. The test results include voltage against magnet, transport current and generated resistance curve. Thermal stability, the recovery time, was studied from the results of two type magnets. The pancake type was the most effective to limit fault current but the solenoid type was thermally the most stable. From this research, short-circuit characteristics of the two types were obtained.
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