Single-wire Earth Return
Single wire earth return (SWER) or single wire ground return is a single-wire transmission line for supplying single-phase electrical power from an electrical grid to remote areas at low cost. Its distinguishing feature is that the earth (or sometimes a body of water) is used as the return path for the current, to avoid the need for a second wire (or neutral wire) to act as a return path. It is principally used for rural electrification, but also finds use for larger isolated loads such as water pumps, and light rail. Single wire earth return is also used for HVDC over submarine power cables.
Read more about Single-wire Earth Return: Description, Mechanical Design, History, Networks and Circuits, Regulatory Issues, Rural Electrification in Alaska, Use By Developing Nations, Use For HVDC Systems
Famous quotes containing the words earth and/or return:
“A sleeping man holds in a circle around him the thread of the hours, the order of years and of worlds. He consults them instinctively upon awaking and in one second reads in them the point of the earth that he occupies, the time past until his arousal; but their ranks can be mingled or broken.”
—Marcel Proust (1871–1922)
“We perceive that the schemers return again and again to common sense and labor. Such is the evidence of history.”
—Henry David Thoreau (1817–1862)