| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that is able to monitor abnormality in wiring connection such as a bus bar while not requiring installation of a sensor or the like for state monitoring in a power supply system in which wiring is done by the bus bar.SOLUTION: In a power measuring system 1 for measuring power of a power reception point and a branch load of a power supply system 10 for distributing power by a bus bar 7, a first power measuring device 11 measures a value of voltage and a value of current at the power reception point. A second power measuring device 12 is provided on a PIU 5 for pulling out the branch load detachable from the bus bar 7 by hot-line working, and measures a value of voltage and a value of current per load branching off to a plurality of circuits. The power measuring system obtains information including the value of voltage and the value of current at the power reception point measured by the first power measuring device 11 and the value of voltage and the value of current per load measured by the second power measuring device 12 via wired or wireless communication or power line carrier communication, and monitors presence or absence of abnormality in connection points of wiring. |
