Title:
CURRENT LIMITER
Document Type and Number:
Japanese Patent JPH1075528
Kind Code:
A
Abstract:
To provide a current limiter which includes a superconducting element which can be connected to an electric circuit and has a critical current density.
A current limiter includes a 1st superconducting element 4 which can be connected to an electric circuit. The superconducting element 4 has a critical current density. The start of a defect state is detected by a 2nd superconducting element 12. In response to the 2nd superconducting element 12, a relation between the critical current density and a current produced in the 1st superconducting element 4 is changed by a coil 13. By this change, the state of the 1st superconducting element is transferred to a resistive state.
Inventors:
MCDOUGALL IAN LEITCH
HANLEY PETER
HANLEY PETER
Application Number:
JP16866897A
Publication Date:
March 17, 1998
Filing Date:
June 25, 1997
Export Citation:
Assignee:
OXFORD INSTR PLC
International Classes:
H01F6/06; H01F36/00; H02H9/02; H02M9/02; (IPC1-7): H02H9/02; H01F6/06; H01F36/00
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)