Electricity: electrical systems and devices – Safety and protection of systems and devices – Superconductor protective circuits
Patent
1993-04-20
1995-05-09
Hoff, Marc S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Superconductor protective circuits
361 57, 361 93, H02H 308
Patent
active
054145864
ABSTRACT:
A superconducting current limiting device for limiting overcurrent flowing in a load. The device includes a current limiter with a first superconducting coil, a second superconducting coil arranged coaxially with the first superconducting coil so as to have a negative magnetic coupling condition, and a third superconducting coil arranged coaxially with the first and second superconducting coils so as to have a negative magnetic coupling condition with the second superconducting coil and so as to have a positive magnetic coupling condition with the first superconducting coil. The first and second superconducting coils are electrically connected in series. The device includes a high speed switch connected electrically in series with the third superconducting coil to form a series circuit. The series circuit is electrically connected in parallel with the second superconducting coil.
The device further includes a current monitoring circuit for monitoring current flowing in the load and for generating a signal so as to close the high speed switch when the current flowing in the load exceeds a prescribed value.
REFERENCES:
patent: 5021914 (1991-06-01), Tsurunaga et al.
Hara Tsukushi
Ito Daisuke
Ohkuma Takeshi
Tada Takamitsu
Tsurunaga Kazuyuki
Hoff Marc S.
Jackson S.
Kabushiki Kaisha Toshiba
LandOfFree
Superconducting current limiting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superconducting current limiting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting current limiting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1710425