@article{oai:kanazawa-u.repo.nii.ac.jp:00009498,
 author = {Calman, S. and Dawson, F.P. and Yamada, Sotoshi and Iwahara, Masayoshi},
 issue = {4},
 journal = {IEEE Transactions on Maggetics},
 month = {Jul},
 note = {This paper shows that flux nonuniformity in a passive magnetic fault current limiter softens the transition characteristics from the saturated to the unsaturated state. Soft transition characteristics lead to higher core losses and a derating in the maximum nominal operating current. Flux uniformity is improved by using a combination of extended magnets and an anisotropic saturable core. The use of distributed permanent magnets or an extended magnet leads to larger differential inductance ratios.},
 pages = {2624--2626},
 title = {Design Improvements to a Three-Material Passive Magnetic Current Limiter},
 volume = {37},
 year = {2001}
}