SUPERCONDUCTIVE COIL SYSTEM

摘要

PROBLEM TO BE SOLVED: To protect a superconductive coil from a voltage which occurs due to the breakage of a measuring wire by suppressing the flow of a large current through the measuring wire with a small current capacity. SOLUTION: In the superconductive coil system to measure the state of a superconductive coil 2 housed in a cryostat 1 and maintained in a very low temperature state, a plurality of voltage measuring wires 7a to 7c and temperature measuring wires 11a to 11c are derived from the superconductive coil 2 to the outside of the cryostat 1 and connected to measuring equipment 9a to 9c and 13a to 13c. Resistors 8a to 8c to suppress current which flows at the time of the ground fault of the measuring wires at midpoints in the measuring wires in the cryostat 1.