Patent EA-000727-B1 (EA)
Title: System of distributing three-phase load
Inventor: YAIR DAVID
IPC: H02J3/26
Filed: 1996-05-17
Abstract: 1. A three phase load distribution system for evenly distributing an electrical load, present on a plurality of branch circuits, across a three phase power distribution network, comprising: a first, second and third current sensor coupled to a first, second and third phase, respectively, of the three phase electrical power distribution network, said first, second and third current sensors for measuring the electrical current flow through said first, second and third phase, respectively; a plurality of switches, each of said switches coupled to one of the plurality of branch circuits, each of said plurality of switches for connecting any one of said first, second or third phases to one of the plurality of branch circuits; a plurality of current sensors for measuring the electrical current flow through each of said plurality of branch circuits; each of said current sensors coupled to one of said plurality of branch circuits, and a processor for controlling said plurality of switches so that the electrical current flow through each of said first, second and third phases does not exceed a predetermined threshold; said processor coupled to said first, second and third current sensors, said plurality of switches and said plurality of current sensors. 2. The system of claim 1, wherein each of said plurality of switches includes at least one semiconductor switch. 3. The system of claim 1, wherein each of said plurality of switches can electrically disconnect said first, second and third phases from the plurality of branch circuits. 4. A three phase load distribution system for evenly distributing an electrical load, present on a plurality of branch circuits, across a three phase power distribution network, comprising: a first, second and third current sensor coupled to a first, second and third phase, respectively, of the three phase electrical power distribution network, said first, second and third current sensors for measuring the electrical current flow through said first, second and third phase, respectively; first, second and third circuit breakers coupled to said first, second and third phases, respectively; a plurality of switches, each of said switches coupled to one of the plurality of branch circuits, each of said plurality of switches for connecting any one of said first, second or third phases to one of the plurality of branch circuits; a plurality of circuit breakers, each coupled to one of the plurality of branch circuits; a plurality of current sensors for measuring the electrical current flow through each of said plurality of branch circuits; each of said current sensors coupled to one of said plurality of branch circuits; and a processor for controlling said plurality of switches so that the electrical current flow through each of said first, second and third phases does not exceed a predetermined threshold; said processor coupled to said first, second and third current sensors, said plurality of switches and said plurality of current sensors. 5. The system of claim 4, wherein each of said plurality of switches includes at least one semiconductor switch. 6. The system of claim 4, wherein each of said plurality of switches can electrically disconnect said first, second and third phases from the plurality of branch circuits.