A DC power distribution system (100, 200) comprising: a plurality of DC power distribution zones (101, 102, 103, 104, 105, 210, 220, 230) bounded by one or more zone boundaries (12, 23, 212, 223), each of said zones including at least one DC power distribution line (113, 123, 124, 133, 134, 213, 224, 233) and at least one protective device (111, 121, 122, 131, 132, 145-148, 155-158, 211, 222, 231, 241) operatively coupled with the DC power distribution line, each protective device including a detector structured to sense one or more electrical characteristics associated with the DC power distribution line with which it is operatively coupled and to controllably open a circuit including said DC power distribution line based upon detection and location of a line fault; at least one intelligent electronic device (111, 121, 122, 131, 132, 145-148, 155-158, 211, 222, 231, 241) structured to determine each line inductance value associated with a respective DC power distribution zone based upon the one or more electrical characteristics sensed by the respective protective device and to evaluate a location of the line fault based upon the determined line inductance values; characterized in that it further comprises at least one inductor (221, 232, 242) coupled with a DC distribution line of one of the plurality of zones, the inductor having an inductance value such that line inductance values of each of the plurality of zones, when no fault is present, differ in magnitude such that the line inductance values (311,321,341,331), determined by the at least one intelligent electronic device during a line fault, uniquely identify one of the plurality of DC power distribution zones as containing the line fault. a plurality of DC power distribution zones (101, 102, 103, 104, 105, 210, 220, 230) bounded by one or more zone boundaries (12, 23, 212, 223), each of said zones including at least one DC power distribution line (113, 123, 124, 133, 134, 213, 224, 233) and at least one protective device (111, 121, 122, 131, 132, 145-148, 155-158, 211, 222, 231, 241) operatively coupled with the DC power distribution line, each protective device including a detector structured to sense one or more electrical characteristics associated with the DC power distribution line with which it is operatively coupled and to controllably open a circuit including said DC power distribution line based upon detection and location of a line fault; at least one intelligent electronic device (111, 121, 122, 131, 132, 145-148, 155-158, 211, 222, 231, 241) structured to determine each line inductance value associated with a respective DC power distribution zone based upon the one or more electrical characteristics sensed by the respective protective device and to evaluate a location of the line fault based upon the determined line inductance values; characterized in that it further comprises at least one inductor (221, 232, 242) coupled with a DC distribution line of one of the plurality of zones, the inductor having an inductance value such that line inductance values of each of the plurality of zones, when no fault is present, differ in magnitude such that the line inductance values (311,321,341,331), determined by the at least one intelligent electronic device during a line fault, uniquely identify one of the plurality of DC power distribution zones as containing the line fault.