Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Superconductors
Reexamination Certificate
2007-11-27
2007-11-27
Benson, Walter (Department: 2858)
Electricity: measuring and testing
Determining nonelectric properties by measuring electric...
Superconductors
C324S521000, C505S160000
Reexamination Certificate
active
11515662
ABSTRACT:
When supplying electric power to a superconducting cable including a superconducting shield covering a superconductive conductor, a phase A of a current generated by a magnetic field leaking from the superconducting shield and a phase B of a current passing through the superconductive conductor are detected, and a phase difference between the phase A and the phase B is obtained so as to determine that a quench has occurred in the case where a difference between a reference phase difference and the obtained current phase difference exceeds a threshold.
REFERENCES:
patent: 4777437 (1988-10-01), Tashiro et al.
patent: 4855859 (1989-08-01), Tixador et al.
patent: 5063472 (1991-11-01), van Doan et al.
patent: 5862028 (1999-01-01), Kalsi
patent: 09-084252 (1997-03-01), None
Ichikawa Michiharu
Mukoyama Shinichi
Suzuki Hiroshi
Takahashi Toshihiro
Yagi Masashi
Benson Walter
Central Research Institute of Electric Power Industry
Notaro $ Michalos PC
The Furukawa Electric Co. Ltd.
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