Pole of a circuit breaker with an integrated optical current sensor
AssigneeABB T&D Technology Ltd.
InventorsCostante Piazza, Emiliano Centenaro, Philippe Gabus, Klaus Bohnert, Hubert Braendle, Roberto Cameroni
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Abstract
A pole of a high- and/or medium-voltage circuit breaker, including an insulating housing, at least one, interruption chamber which is positioned inside the insulating housing and contains at least a moving contact and at least a fixed contact. A device for measuring the electric current flowing through the pole, and a dielectric gas, the particularity of which is the fact that said device for measuring the electric current flowing through the pole includes an optical current sensor arranged within a volume of the pole that is occupied by the dielectric gas.
Claims18
A pole of a high- and/or medium-voltage circuit breaker, comprising an insulating housing, at least one interruption chamber which is positioned inside the insulating housing and contains at least a moving contact and at least a fixed contact, a device for measuring the electric current flowing through the pole, and a dielectric gas, wherein said device for measuring the electric current flowing through the pole comprises an optical current sensor arranged within a volume of the pole that is occupied by the dielectric gas, a control system which sends light waves to said optical current sensor, and transmission means connecting the control system to the optical current sensor along which said light waves travel.
Dependencies are inferred from the claim text.