摘要:
La méthode divulguée corrige des mesures de consommation fournies par des compteurs présumés être rattachés à un même réseau. Les mesures prises par les compteurs à intervalles temporels sont collectées sous forme d'échantillons utilisés pour déterminer des quantités électriques en relation avec des courants et des tensions se rapportant aux compteurs. Une sélection d'une cohorte d'échantillons retenus parmi les échantillons considérés valides, qui correspondent à une gamme de charge ou une gamme de ratio de variation de charge transitée par le réseau basée sur les grandeurs électriques est réalisée. Des fonctions de correction des mesures de consommation sont définies à partir de la cohorte d'échantillons retenus, et les mesures de consommation sont adaptées selon les fonctions de correction. Une anomalie correspondant à une non- conformité électrique d'un compteur peut être détectée avec la méthode.
摘要:
An arrangement for use in a utility meter (10) includes a sensor (18) and a processing circuit (14) supported by a base of the meter (10), and a magnetic element (24) carried by the cover (22) of the meter, in which the cover (22) is removably mounted to the base. The sensor (18) includes at least two magnetizable elements (102,103), such as inductors, that are magnetized at opposite polarities when the meter (10) is closed and operable. The magnetizable elements (102,103) are positioned in very close proximity so that as cover (22) is removed the magnetic element (24) passes the elements (102,103) to cause the magnetizable elements (102,103) to assume the same polarity. The processing circuit (14) continuously polls the magnetizable elements (102,103) to evaluate their respective polarities and is configured to issue a tamper indication when the detected polarities are the same.
摘要:
A method detects power theft in a branch of a distribution system by distinguishing between technical losses that are inevitable during the course of normal operation of the system, and non-technical losses that can be attributed to power theft. The method assumes a specific circuit (401) corresponding to that branch, collects data for energy consumed and currents (420) at regular intervals by means of a smart or traditional power meter, estimates the likely resistances (410) of the lines connecting the consumption points to the distribution transformer by means of least squares regression, and uses the estimated resistances (441) to predict technical losses (450) in future time intervals. By comparing the total power losses (431) measured with the estimates of the technical losses (451), the amount of non-technical losses can be estimated (460), and theft can be signaled (470) when this amount is unusually high.
摘要:
A method for the electronic securing of an electricity meter parameter comprising the detection 8 of an electronic representation 6 of the electricity meter parameter, creation of a first data record 10 at least from said representation 6, creation of a check signature 34 via at least the first data record 10 by signing the first data record 10 with a private key 32 of a calibration point, creation of a tuple 6, 34 from at least the representation 6 and the check signature 34, provision of the tuple 6, 34 via a data network.
摘要:
The invention relates to an electronic meter for electric power having a controlled reclosing of the cut-off member (OC) by a circuit breaker of a subscriber. The meter comprises, on at least one phase, a circuit (1) generating HF to the wiring of a subscriber via the cut-off member (OC) in open position (0) and the circuit breaker, and a circuit (2) for controlling the closing of the cut-off member (OC) upon a detection of the HF current cancellation when opening the circuit breaker of a subscriber. The invention can be used for electronic meters not accessible to the subscriber.