Patent ID: 11879955
Assignee: SAGEMCOM ENERGY & TELECOM SAS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An electricity meter arranged to measure consumption of energy supplied to an installation by a distribution network comprising a phase line and a neutral line, the electricity meter comprising:
a phase conductor and a neutral conductor arranged to be connected respectively to the phase line and to the neutral line;
a test circuit comprising a test component and a connection component arranged to place the test component selectively in a connected configuration, in which the test component is connected to the phase conductor and to the neutral conductor in parallel with the installation so as to form an additional load, and a disconnected configuration in which the test component is disconnected from the phase conductor and/or from the neutral conductor;
a processor component arranged to control the connection component in such a manner that it places the test component in the connected configuration during a predetermined test duration, to measure surplus energy consumed during the predetermined test duration and due to the additional load, and to estimate measurement error of the electricity meter from the surplus energy.