Electricity: electrical systems and devices – Safety and protection of systems and devices – Superconductor protective circuits
Patent
1987-05-20
1989-11-07
DeBoer, Todd E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Superconductor protective circuits
361 58, 361 86, 361113, 361141, 307306, 307491, H02H 700
Patent
active
048796220
ABSTRACT:
The circuit monitors the superconducting state of a superconducting magnet winding. The winding is subdivided into two serially connected sub-windings with an intermediate tap point. The end of the sub-windings are connected via an electrically conducting parallel branch. This parallel branch consists of two serially connected sub-branches, each containing at least one ohmic resistor. There is a junction between the sub-branches. This junction and the tap point of the magnet winding are the diagonal points of a bridge circuit, to which is connected an electronic device for evaluating and processing the voltage signal to be measured. To account for the ohmic resistances associated with the sub-windings of the superconducting magnet winding and thereby increasing the sensitivity of the circuit, each sub-branch of parallel branch contains at least one capacitor.
REFERENCES:
patent: 4271443 (1981-06-01), Nother
Bischolf et al., ICEM 1984, "Considerations About the Electrical Supervision of teh Superconducting Field Winding of a 320 kVA Synchronous Generator", 1984.
Deboer Todd E.
Jay Mark H.
Siemens Aktiengesellschaft
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