Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1992-11-16
1994-02-15
Gaffin, Jeffrey A.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200144R, 324424, 324460, G01L 2130, G01R 3132, H01H 3326
Patent
active
052869334
ABSTRACT:
A vacuum circuit-breaker including, for each phase, at least one vacuum bottle housed inside a closed enclosure, wherein said circuit-breaker includes at least one scintillation fiber disposed in the space between said enclosure and the outside surface of the vacuum bottle(s), said fiber being connected outside the circuit-breaker to an opto-electronic device.
REFERENCES:
patent: 4345153 (1982-08-01), Yin
patent: 4906935 (1990-03-01), Hess et al.
Journal of Lightwave Technology, vol. 7, No. 7, Jul. 1989, New York, US; pp. 1029-1032; Katsutoshi Muto: "Electric-Discharge Sensor Utilizing Fluorescent Optical Fiber".
Nuclear Instruments and Methods in Physics Research, No. 257, 1987, Amsterdam, Netherlands, pp. 603-606; Blumenfeld et al: "Plastic Fiberes in High Energy Physics".
Patent Abstracts of Japan, vol. 14, No. 452 (P-1112)(4395) Sep. 27, 1990 & JP-A-2 181 668 (Furukawa Electric Co.) Jul. 16, 1990.
Friedhofer Michael A.
Gaffin Jeffrey A.
GEC Alsthom SA
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