Double storey three phase saturated cores fault current limiter

Y. Wolfus, Y. Nikulshin, A. Friedman, Y. Yeshurun

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


A novel saturated-cores Fault-Current-Limiter (FCL) configuration is described. This FCL is based on two parallel planes of iron rectangular cores, on which three-phase coils are mounted and connected in series to the grid. Two DC coils are mounted in between the planes on perpendicular core limbs connecting the two AC planes. The DC coils are set to magnetically saturate the AC cores. The transition to three-dimensional, double-storey design enables handling three-phase symmetrical faults while offering better decoupling between the AC and DC circuits. At the same time, it shortens the AC limb lengths and enables deeper magnetic saturation levels in comparison to other saturated cores FCL designs. Hence, this FCL configuration exhibits lower insertion impedance and higher ratio of fault to nominal state impedance in comparison with other designs.

Original languageEnglish
Article number032058
JournalJournal of Physics: Conference Series
Issue numberPART 3
StatePublished - 2014
Event11th European Conference on Applied Superconductivity, EUCAS 2013 - Genoa, Italy
Duration: 15 Sep 201319 Sep 2013


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