Method and system for establishing a power feed to systems during operation

A method of maintaining electrical power to electrical systems in operation during reconfiguration or maintenance of a power distribution system for the electrical systems, comprising:

• coupling a set of input lines to a power source such that the input lines are connected to at least one phase of AC power from the power source;
• coupling a set of feed lines to a power distribution unit that is supplying primary power to one or more systems;
• testing the set of feed lines and the set of input lines to determine a match between at least one pair of lines in the set of feed lines and at least one pair of lines in the set of input lines, wherein determining the match comprises matching the phase of the at least one pair of feed lines with the phase of the at least one pair of input lines;
• and
• coupling the at least one pair of feed lines to the matching at least one pair of input lines while primary power is maintained to the systems and the systems are operating;
• and
• disconnecting or disabling primary power at one or more points in a primary power chain.

A system for supplying power during reconfiguration or maintenance of a primary power system, comprising:

• one or more feed cables comprising a set of feed lines, wherein the set of feed lines is configured to couple with an output receptacle of a power distribution unit;
• an input cable comprising a set of input lines configured to couple with a power source;
• a synchronization system configurable to test one or more lines of the feed cable and one or more lines of the input cable to establish a match of phase and polarity between at least one pair of lines in the set of feed lines and at least one pair of lines in the set of input lines;
• and
• a coupling system configured to couple at least one pair of lines from the set of feed lines to at least one matching pair of lines from the set of input lines.