Conductor systems for suspended or underground transmission lines

A conductor assembly for transmitting power, comprising:

• a superconducting material including at least one of a superconducting wire or a superconducting tape, disposed around an outside surface of a forming device, such that the superconducting material conforms to the shape of the forming device;
• a thermally insulating jacket disposed around and spaced apart from the superconducting material, the thermally insulating jacket and the superconducting material defining an annulus that is configured to accommodate a coolant flow through the conductor assembly;
• and
• a coolant tube disposed in the conductor assembly and configured to transport the coolant, the coolant tube including an orifice configured to limit coolant flow from the coolant tube,
• wherein the coolant flows through the orifice as a bi-phasic liquid.

A conductor assembly for transmitting power, comprising:

• a thermally insulating jacket having an interior surface;
• a forming device disposed inside and spaced apart from the thermally insulating jacket;
• a superconducting material disposed around an outside surface of the forming device, the superconducting material conforming to a shape of the forming device, the superconducting material and the interior surface of the thermally insulating jacket defining an annular region through which a coolant can flow;
• and
• a coolant tube disposed in the former and configured to transport the coolant, the coolant tube including an orifice and configured to limit coolant flow from the coolant tube,
• wherein the coolant transitions from a subcooled single-phase liquid to a gas as the coolant flows through the orifice.