Title:
CURRENT LIMITER, OVERCURRENT DETECTION MECHANISM AND DRIVE CIRCUIT FOR SUPERCONDUCTING COIL
Document Type and Number:
Japanese Patent JP2017034194
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a current limiter capable of avoiding quench of a superconducting coil by preventing the passage of an overcurrent through a superconducting coil in advance and also by attenuating the following current when a warning sign of quench is detected.SOLUTION: A current limiter 12 inserted in series into a superconducting coil 10 includes a winding 22 whose critical current is smaller than that of the superconducting coil 10, and at least one surface thereof is closely adhered to a bobbin 20 being a hot bath via an electric insulation layer 21. Moreover, a conductor wire 41 for the detour is provided in which current detours the winding 22 during current-limiting operation and at least one surface thereof is made to be closely adhered to an exclusive hot bath via the electric insulation layer.SELECTED DRAWING: Figure 2
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Inventors:
TAKAGI TOMOHIRO
Application Number:
JP2015155438A
Publication Date:
February 09, 2017
Filing Date:
August 05, 2015
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD
International Classes:
H01F6/00; H01F6/06; H01F6/02; H02H9/02
Domestic Patent References:
| JPH02101926A | 1990-04-13 | |||
| JP2011155096A | 2011-08-11 | |||
| JPH05260649A | 1993-10-08 | |||
| JPH1094166A | 1998-04-10 |
Foreign References:
| WO2012157494A1 | 2012-11-22 | |||
| US20130190187A1 | 2013-07-25 |
Attorney, Agent or Firm:
Patent Business Corporation Kushibuchi International Patent Office