An electrical assembly (10,60) comprising: a power converter (12,62) including first and second DC terminals (14,16) connectable to a DC network and an AC terminal (20,20A,20B,20C) connectable to an AC network; and a grounding circuit to connect the AC terminal (20,20A,20B,20C) to ground, the grounding circuit defining first and second current flow paths (28,30) between the AC terminal (20,20A,20B,20C) and ground, the first current flow path including a switching element operable to selectively open and close the first current flow path, and the second current flow path including a first current flow control element configured to operate in a first mode in which it minimises the flow of current through the second current flow path when the first current flow path is open and thereby minimises the flow of current between the AC terminal (20,20A,20B,20C) and ground when the first current flow path is open; and a control unit operatively connected to the switching element, the control unit being configured to operate the switching element to maintain open the first current flow path following an occurrence of a DC network fault, wherein the power converter (12,62) is configured to continue transferring power between the DC and AC networks (22,18) throughout the DC network fault in order to allow the electrical assembly to ride-through a short-duration DC network fault; wherein the control unit is operatively connected with the first and second DC terminals (14,16) to monitor the occurrence of a DC network fault associated with one or both of the DC terminals (14,16) and is configured to operate the switching element to close the first current flow path at a predetermined point of time following the occurrence of a DC network fault or, to remove any voltage imbalance between the first and second DC terminals (14, 16). a power converter (12,62) including first and second DC terminals (14,16) connectable to a DC network and an AC terminal (20,20A,20B,20C) connectable to an AC network; and a grounding circuit to connect the AC terminal (20,20A,20B,20C) to ground, the grounding circuit defining first and second current flow paths (28,30) between the AC terminal (20,20A,20B,20C) and ground, the first current flow path including a switching element operable to selectively open and close the first current flow path, and the second current flow path including a first current flow control element configured to operate in a first mode in which it minimises the flow of current through the second current flow path when the first current flow path is open and thereby minimises the flow of current between the AC terminal (20,20A,20B,20C) and ground when the first current flow path is open; and a control unit operatively connected to the switching element, the control unit being configured to operate the switching element to maintain open the first current flow path following an occurrence of a DC network fault, wherein the power converter (12,62) is configured to continue transferring power between the DC and AC networks (22,18) throughout the DC network fault in order to allow the electrical assembly to ride-through a short-duration DC network fault; wherein the control unit is operatively connected with the first and second DC terminals (14,16) to monitor the occurrence of a DC network fault associated with one or both of the DC terminals (14,16) and is configured to operate the switching element to close the first current flow path at a predetermined point of time following the occurrence of a DC network fault or, to remove any voltage imbalance between the first and second DC terminals (14, 16).