Abstract: A recording medium stores a program for causing a computer to execute a process including: specifying, based on simulation data, related to an operation of a power distribution facility including power distribution lines and one or more transformers coupled to a phase corresponding to two of the power distribution lines, a correlation relationship between a phase current flowing through the transformer and a line current flowing through power distribution line; generating a scatter diagram indicating a degree of correlation between the phase current and each line current; calculating a probability density at each position in the scatter diagram; and determining, based on a position in a case where actual data of the phase current and the line current in the operation of the power distribution facility is plotted in the scatter diagram and a calculation result of the probability density, a coupling phase of the transformer in the actual data.

Abstract: A recording medium stores a program for causing a computer to execute a process including: specifying, based on simulation data, related to an operation of a power distribution facility including power distribution lines and one or more transformers coupled to a phase corresponding to two of the power distribution lines, a correlation relationship between a phase current flowing through the transformer and a line current flowing through power distribution line; generating a scatter diagram indicating a degree of correlation between the phase current and each line current; calculating a probability density at each position in the scatter diagram; and determining, based on a position in a case where actual data of the phase current and the line current in the operation of the power distribution facility is plotted in the scatter diagram and a calculation result of the probability density, a coupling phase of the transformer in the actual data.

Abstract: A power distribution management apparatus includes an electrical connection storage unit, a search unit, and an output unit. The electrical connection storage unit is configured to store electrical connection information in which a combination of a plurality of junctions that describes which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated. The search unit is configured to search a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information stored in the electrical connection storage unit. The output unit is configured to output facility information obtained from the combination where the investigation is performed and a result of the search after the investigation and the search are performed.

Abstract: A power distribution management apparatus includes an acquisition unit and a detection unit. The acquisition unit is configured to acquire predetermined data at a predetermined interval from meters classified into a predetermined group, the data containing power consumption. The detection unit is configured to detect, as an abnormal place, a facility of a power distribution system associated with the group when the predetermined data is not acquired within the predetermined interval from the respective meters included in the group.

Abstract: A power distribution management apparatus includes an acquisition unit and a detection unit. The acquisition unit is configured to acquire predetermined data at a predetermined interval from meters classified into a predetermined group, the data containing power consumption. The detection unit is configured to detect, as an abnormal place, a facility of a power distribution system associated with the group when the predetermined data is not acquired within the predetermined interval from the respective meters included in the group.

Abstract: A power distribution management apparatus includes an electrical connection storage unit, a search unit, and an output unit. The electrical connection storage unit is configured to store electrical connection information in which a combination of a plurality of junctions that describes which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated. The search unit is configured to search a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information stored in the electrical connection storage unit. The output unit is configured to output facility information obtained from the combination where the investigation is performed and a result of the search after the investigation and the search are performed.