Patent ID: 7057869
Filing Date: 2006-06-06
Classification: H02H,H02J

Abstract:
1. A method for protecting at least one consumer against overvoltages, comprising: non-contactly transmitting electric power from at least one medium-frequency current source having frequencies that deviate around medium frequency to at least one moving consumer via at least one transmission line and transformer head allocated to the consumers and including a downstream matching controller configured to adjust power received from the transmission line; supplying a transmission line from a medium-frequency current source with a medium-frequency current constant in an effective value during power transmission; supplying a respective consumer with energy by at least one matching controller including at least one feed-in; rectifying at least one fed current in a rectifier; smoothing the at least one fed current by a link-circuit reactor; bringing together the at least one fed current to form a link-circuit current; one of supplying the link-circuit current to a link-circuit capacitor buffering an output voltage of the matching controller and shunting the link-circuit current upstream of the link-circuit capacitor in accordance with a power demand of the consumers and in accordance with a switch; comparing the output voltage at at least one link-circuit capacitor to one of a fixed and a predefinable value; and turning on an electronic power circuit-breaker to shunt the link-circuit current in accordance with the output voltage exceeding the on of th fixed and the predefinabl value.