A direct current transmission and distribution (T&D) system comprising: a plurality of DC-to-DC converter devices at least partially defining a plurality of isolatable portions of said DC T&D system; and a DC T&D control system coupled to said plurality of DC-to-DC converter devices, said DC T&D control system comprising: a plurality of current sensors (334; 434), wherein at least one of said plurality of current sensors is positioned at at least one DC-to-DC converter device of said plurality of DC-to-DC converter devices, wherein said at least one current sensor of said plurality of current sensors is configured to transmit at least one signal representative of a value of DC electric current transmission through said at least one DC-to-DC converter device; and a plurality of processors, wherein at least one processor of said plurality of processors is coupled to said at least one current sensor and said at least one DC-to-DC converter device, said at least one processor configured to regulate electrical parameters comprising at least DC current transmission through said at least one DC-to-DC converter device as a function of the value of DC current transmission through said at least one DC-to-DC converter device; characterised in that the DC T&D system further comprises a plurality of mechanical isolation devices configured to remove at least a portion of said DC T&D system from service, wherein said plurality of DC-to-DC converter devices are further configured to decrease DC electric current transmission through said at least a portion of said DC T&D system prior to actuation of at least one mechanical isolation device of said plurality of mechanical isolation devices. a plurality of DC-to-DC converter devices at least partially defining a plurality of isolatable portions of said DC T&D system; and a DC T&D control system coupled to said plurality of DC-to-DC converter devices, said DC T&D control system comprising: a plurality of current sensors (334; 434), wherein at least one of said plurality of current sensors is positioned at at least one DC-to-DC converter device of said plurality of DC-to-DC converter devices, wherein said at least one current sensor of said plurality of current sensors is configured to transmit at least one signal representative of a value of DC electric current transmission through said at least one DC-to-DC converter device; and a plurality of processors, wherein at least one processor of said plurality of processors is coupled to said at least one current sensor and said at least one DC-to-DC converter device, said at least one processor configured to regulate electrical parameters comprising at least DC current transmission through said at least one DC-to-DC converter device as a function of the value of DC current transmission through said at least one DC-to-DC converter device; a plurality of current sensors (334; 434), wherein at least one of said plurality of current sensors is positioned at at least one DC-to-DC converter device of said plurality of DC-to-DC converter devices, wherein said at least one current sensor of said plurality of current sensors is configured to transmit at least one signal representative of a value of DC electric current transmission through said at least one DC-to-DC converter device; and a plurality of processors, wherein at least one processor of said plurality of processors is coupled to said at least one current sensor and said at least one DC-to-DC converter device, said at least one processor configured to regulate electrical parameters comprising at least DC current transmission through said at least one DC-to-DC converter device as a function of the value of DC current transmission through said at least one DC-to-DC converter device; characterised in that the DC T&D system further comprises a plurality of mechanical isolation devices configured to remove at least a portion of said DC T&D system from service, wherein said plurality of DC-to-DC converter devices are further configured to decrease DC electric current transmission through said at least a portion of said DC T&D system prior to actuation of at least one mechanical isolation device of said plurality of mechanical isolation devices.