Method for finding errors of measurement in an energy distribution system

摘要

The invention concerns a method for scanning a group of receivers of energy in an energy distribution system to find defective energy meters and energy-consuming installations at the receivers' place. For each receiver in the group, the following steps are performed:determining the energy consumption measured by the energy meter during an entire time cycle;determining the energy consumption measured by the energy meter during one or more subperiods of the time cycle; anddetermining for the subperiod (each subperiod) a comparative value which consists of a ratio (LIi) of the energy consumption during the subperiod to the energy consumption during the entire time cycle;Subsequently the following steps are performed:determining for the subperiod (each subperiod), by means of a statistical method, which of all comparative values are within a normal range and which are outside the normal range; anddefining the energy meters whose comparative values are outside the range as belonging to a group having a great risk of defects.