Abstract: A method for monitoring a polyphase network includes the steps, repeated regularly, of: acquiring voltage measurements taken by voltage sensors of an item of electrical equipment, and producing current values of electrical parameters; accessing a reference table comprising a list of connection configurations each associated with a distinct combination of reference values of said electrical parameters, the list of connection configurations comprising configurations each corresponding to a combination of connection states for each phase (P1, P2, P3) and for the neutral (N); implementing an exploratory algorithm intended to explore the reference table to identify the current connection configuration.

Abstract: A method for detecting a break in connection of a neutral of a three-phase electricity network, implemented in a processing unit of an item of electrical equipment connected to the electricity network includes acquiring, at a time T, a first phase voltage (V1), a second phase voltage (V2) and a third phase voltage (V3) measured by voltage sensors of the item of electrical equipment; evaluating a first quantity representative of a ratio between a maximum voltage and a minimum voltage from the first, second and third phase voltages; if the first quantity is greater than a predetermined threshold: evaluating, based on the first, second and third phase voltages, a second quantity; detecting a break in the neutral at the time T when the second quantity satisfies a predetermined reference criterion.

Abstract: A method for monitoring a polyphase network includes the steps, repeated regularly, of: acquiring voltage measurements taken by voltage sensors of an item of electrical equipment, and producing current values of electrical parameters; accessing a reference table comprising a list of connection configurations each associated with a distinct combination of reference values of said electrical parameters, the list of connection configurations comprising configurations each corresponding to a combination of connection states for each phase (P1, P2, P3) and for the neutral (N); implementing an exploratory algorithm intended to explore the reference table to identify the current connection configuration.

Abstract: The invention relates to a device comprising an interface for subscriber identification module, a first subscriber identification module connected to said interface; a connector suitable for connecting a second subscriber identification module to said interface when the second module is present in the connector; a presence detector configured to generate a presence signal of the second module in the connector; an inhibition circuit for inhibiting the first module according to the presence signal, the device being configured to operate with the second module when the first module is inhibited, the inhibiting circuit being configured to inhibit a module by setting a data input/output of said module to a high impedance state, by applying a signal corresponding to an active state to an initialization signal input of the module to be inhibited. The invention also relates to a method, a computer program product and a program storage medium.

Abstract: A meter including a phase conductor connected to a phase line of the network, a cut-off member, and a detection circuit comprising: an injection chain arranged, while the cut-off member is open, to generate a test signal with a predetermined voltage level, and arranged to inject the test signal into the phase conductor downstream from the cut-off member; a measurement chain arranged to measure an intermediate voltage level of the test signal at a measurement point of the injection chain, which point is situated between the generator component and the injection component; a processor component arranged to act as a function of the intermediate voltage level in order to determine whether the circuit breaker is open or closed.