System and Method for Determining the Impedance of a Medium Voltage Power Line

A method of using a computer system to provide utility information related to a plurality of underground power line cable segments, wherein a multitude of the underground power line cable segments are connected on opposite ends to different distribution transformers and carry power having a voltage greater than one thousand volts, the method comprising:

• receiving data sufficient for determining an impedance of each of the plurality of underground power line cable segments at a plurality of different times;
• determining the impedance of each of the plurality of underground power line cable segments at the plurality of different times;
• detecting a change in the impedance of a set of the plurality of underground power line cable segments beyond a threshold;
• storing in a memory information sufficient for identifying each cable segment of the set of the plurality of underground power line cable segments for which a change in impedance beyond the threshold is detected;
• generating a report that identifies the set of the plurality of underground power line cable segments for which a change in impedance beyond the threshold is detected;
• and
• outputting the report.

A computer program product, comprising a computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a process for generating a report, the process comprising:

• storing in a memory information sufficient for identifying each of the plurality of underground power line cable segments;
• receiving data sufficient for determining an impedance of the plurality of underground power line cable segments at a plurality of different times;
• determining the impedance of each of the plurality of underground power line cable segments at the plurality of different times;
• detecting a change in the impedance of a set of the plurality of underground power line cable segments beyond a threshold;
• storing in a memory information sufficient for identifying each underground power line cable segment of the set of the plurality of underground power line cable segments for which a change in impedance is detected;
• generating a report that identifies the set of the plurality of underground power line cable segments for which a change in impedance is detected;
• and
• outputting the report.

A method of using a computer system to provide utility data related to a plurality of underground power line cable segments, wherein a multitude of the underground power line cable segments are connected on opposite ends to different distribution transformers and carry power having a voltage greater than one thousand volts, the method comprising:

• receiving data sufficient for determining an impedance of the plurality of underground power line cable segments at a plurality of different times;
• determining the impedance of each of the plurality of underground power line cable segments at the plurality of different times based on the received data;
• determining that each underground power line cable segment of a set of the plurality of underground power line cable segments has an impedance beyond a threshold;
• storing in a memory information sufficient for identifying each underground power line cable segment of the set of the plurality of underground power line cable segments for which the impedance is determined to be beyond the threshold;
• generating a report that identifies the set of the plurality of underground power line cable segments for which the impedance is determined to be beyond the threshold;
• and
• outputting the report.