Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2006-06-06
2006-06-06
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
C361S062000
Reexamination Certificate
active
07057869
ABSTRACT:
A method and a device for protecting at least one consumer against overvoltages when working with a method for non-contact transmission of electric power from one or more medium-frequency current sources, whose frequencies may have deviations around medium frequency fM, to the at least one moving consumer via one or more transmission lines and transformer heads, allocated to the consumers, having a downstream matching controller for adjusting the power received from the transmission line; a transmission line is fed from a medium-frequency current source with a medium-frequency current that is constant in its effective value during the power transmission; the respective consumer is supplied with energy by at least one matching controller having at least one feed-in; one or more fed currents are rectified in each instance in a rectifier, smoothed in each instance by a link-circuit reactor and brought together; with the aid of a switch, the link-circuit current, brought together in each instance, is either supplied to a link-circuit capacitor buffering output voltage U=of the matching controller, or is shunted upstream of the link-circuit capacitor, depending upon the power demand of the consumers; and the voltage U=at at least one link-circuit capacitor is compared to a predefinable value, and if this value is exceeded, an electronic power circuit-breaker is turned on for shunting the link-circuit current.
REFERENCES:
patent: 5734256 (1998-03-01), Larsen et al.
patent: 5889384 (1999-03-01), Hayes et al.
patent: 6005304 (1999-12-01), Seelig
patent: 6462432 (2002-10-01), Seelig et al.
patent: 197 35 624 (1998-12-01), None
Jackson Stephen W.
Kenyon & Kenyon LLP
Sew-Eurodrive GmbH & Co.
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