DC Contactor Arrangement for Bidirectional Power Switching
AssigneeABB E-mobility B.V.
InventorsLars Peter Bech, Stefan Raaijmakers, Jim van-der-Heijden, Mengxi Zhou
Life of this patent
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Abstract
A DC contactor arrangement for bidirectional power switching includes a DC+ contactor for connecting a power source with a load, and a DC− contactor for connecting the power source with the load. At least one of the DC+ or DC− contactors is a unidirectional DC contactor. The DC+ contactor and the DC− contactor are configured to be switched at different times, when the DC+ contactor and the DC− contactor are under load.
Claims10
A direct current (DC) contactor arrangement for bidirectional power switching, comprising:
- a DC+ contactor for connecting a power source with a load;
- and
- a DC− contactor for connecting the power source with the load;
- wherein at least one of the DC+ contactor or the DC− contactor is a unidirectional DC contactor;
- and
- wherein the DC+ contactor and the DC− contactor are configured to be switched at different times, when the DC+ contactor and the DC− contactor are under load.
A method for switching a DC+ contactor for connecting a power source with a load and a DC− contactor for connecting the power source with the load in a DC contactor arrangement for bidirectional power switching, comprising:
- providing at least one of the DC+ contactor or the DC− contactor as a unidirectional DC contactor;
- and
- switching the DC+ contactor and the DC− contactor at different times, when the DC+ contactor and the DC− contactor are under load.
Dependencies are inferred from the claim text.