Method and apparatus for detecting quenching of a coil for a sup

Details Method and apparatus for detecting quenching of a coil for a sup Method and apparatus for detecting quenching of a coil for a sup

1996-05-24

1999-01-19

Medley, Sally C.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Superconductor protective circuits

505850, H02H 700

Patent

active

058620281

ABSTRACT:
Quenching of a coil for a superconducting magnet is detected by placing a temperature sensor proximate the coil of the superconducting magnet and monitoring the temperature sensor for a rise in temperature of the coil of the superconducting magnet. AC and DC field variations of the coil of the superconducting magnet do not substantially adversely affect such temperature monitoring, thus facilitating reliable and accurate detection of such quenching. This accurate and reliable detection of quenching assures that the superconducting magnet can be shut down in a controlled manner, so as to prevent damage thereto when quenching occurs. The method and apparatus of the present invention finds particular use in maglev applications.

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