Device for measuring electrical consumption, system and method for detecting a non-technical loss using said measuring device.

Abstract

This disclosure relates to a device (23) for measuring electricity consumption, installed on a power supply line (24) of a public electricity distribution network upstream of a meter (13).It comprises: - a non-intrusive current probe configured to measure current flowing on the line (24), and voltage probes; - a module for generating electrical consumption measurement data from measurements provided by the probes; - a memory for recording measurement data; - a first wireless communication module, configured to transmit (E1) at least some of the measurement data, at a predetermined transmission frequency, to a server (47) of a public network operator; - a second bidirectional communication module configured to receive configuration data from a portable processing device (48) and to transmit (E2) the recorded measurement data to the portable processing device (48). Abstract figure: Figure 5.

Description

Title of the invention: Device for measuring electrical consumption, system and method for detecting a non-technical loss using said measuring device. Technical field

[0001] The present disclosure relates to the field of electricity distribution, and the monitoring of the electricity consumption of a customer installation, whether it is a private or professional customer. More specifically, the present disclosure concerns the reduction of losses on an electrical distribution network, and in particular losses qualified as non-technical losses. Prior art

[0002] Given the rise in energy prices, and particularly electricity prices, it is important for the manager of an electricity distribution network to identify and reduce all losses likely to affect the network, including non-technical losses. The term non-technical loss, commonly referred to as PNT, refers to an anomaly in the metering of electricity consumption, or user fraud, leading to an underestimation of the actual electricity consumption of a customer installation, and therefore of the associated billing.

[0003] In the French electricity distribution network, approximately 50% of electricity meters are located inside the customer's home. A series of clues may lead the electricity distributor to suspect a PNT involving a user of the electricity network. However, a correction can only take place after the actual detection of the diversion. When the electricity meter is installed inside the user's home, a sworn agent must enter the customer's home, which requires time and energy: in fact, the agent may be confronted with the absence of the customer during his visit or with his refusal to allow him access to his home.

[0004] To solve this problem, it is known to install an additional electrical device on the public electricity network, which is called an electrical energy recorder. This recorder is installed outside the customer's home and makes it possible to record data relating to their electricity consumption. Such an electrical energy recorder is for example described in patent document US 2013 / 0307694. These data can then be compared with the reading of the meter installed at the user's home: any discrepancy makes it possible to identify a non-technical loss which, if it is in favor of the customer, may be due to intentional fraud. To be able to reliably characterize this discrepancy, however, it is necessary to carry out data recordings over a sufficiently long period, typically a measurement campaign lasting several days.

[0005] However, the electrical energy recorders of this type known to date have several disadvantages. First of all, they are most often expensive equipment, which the electricity distribution network manager uses for one-off measurements. He may be reluctant to leave them unattended for several days on the public network, both for reasons of value and security. However, it is necessary for the network manager to have a large number of recorders of this type, to be installed near all customer installations for which he suspects the existence of a non-technical loss, which therefore represents a high cumulative cost.

[0006] This problem is all the more acute since, to date, the installation of such electrical energy recorders cannot be done discreetly. Indeed, this equipment is most often large, and therefore easily spotted in public spaces. In addition, when installing it on the customer's power supply line, it is sometimes recommended to temporarily cut it off, to make the necessary connections safely for the technician when certain network components are aging. This power cut, even temporary, necessarily attracts the customer's attention. However, if the customer is a fraudster, it is particularly crucial not to arouse his suspicions, on the one hand so that he is not tempted to temporarily put an end to the fraud, while waiting for the recording meter to be removed, and on the other hand so that he is not tempted to damage or remove this meter.

[0007] There is therefore a need for a non-technical loss detection technique on an electrical distribution network which does not have these various drawbacks. Summary

[0008] The present disclosure improves the situation.

[0009] A device for measuring electrical consumption is proposed, configured to be installed on an electrical supply line of a public electricity distribution network upstream of a customer's electrical meter, comprising: - at least one non-intrusive current probe configured to measure a current flowing on the power supply line without causing a cut in the line during installation, and at least two voltage probes; - a module for generating electrical consumption measurement data from measurements provided by current and voltage probes; - a memory for recording measurement data at a specific recording frequency; - a first wireless communication module, configured to transmit at least some of the measurement data, according to a determined transmission frequency, to a server of a manager of the public electricity distribution network; - a second bidirectional communication module configured to receive configuration data from a portable processing device and to transmit the measurement data stored in the memory to the portable processing device.

[0010] According to another aspect, there is provided a system for detecting a non-technical loss on an electricity distribution network, the system comprising: - at least one communicating electricity meter of at least one electrical installation of a customer, configured to transmit first data measuring the electricity consumption of the installation, according to a determined transmission frequency, to a server of an electricity distribution network manager; - a device for measuring electrical consumption as described above, installed in the public electricity distribution network on an electrical supply line upstream of the communicating electrical meter(s), and configured to transmit second electrical consumption measurement data from the installation(s) according to the determined transmission frequency to the server; - a portable processing device, capable of connecting to the device for measuring electrical consumption in order to transmit configuration data to it and to receive the second electrical consumption measurement data recorded in a memory of the measuring device, the portable processing device further comprising a communication module configured to transmit the second measurement data received to the server; - a module for comparing a sum of the first measurement data and the second electricity consumption measurement data received by the server, capable of generating an indicator for detecting a non-technical loss on a portion of the network located downstream of the measurement device in the event of a divergence of the sum of the first measurement data and the second measurement data.

[0011] According to another aspect, a method is proposed for detecting a non-technical loss on a portion of an electricity distribution network, the portion comprising at least one electrical installation of a customer comprising a communicating electricity meter, configured to transmit first electrical consumption measurement data of the installation, according to a determined transmission frequency, to a server of a manager of the electricity distribution network. Such a method comprises: - a configuration of a device for measuring electrical consumption as described above, by means of a portable processing device; - installation of the configured measuring device, on an electrical supply line upstream of the communicating electrical meter(s), without cutting the line; - a generation of second electrical consumption measurement data from measurements provided by at least one current probe and at least two voltage probes of the measuring device; - transmission of the second measurement data to the server of the electricity distribution network manager.

[0012] According to another aspect, there is provided a computer program comprising instructions for implementing all or part of a method as defined herein when this program is executed by a processor. According to another aspect, there is provided a non-transitory, computer-readable recording medium on which such a program is recorded.

[0013] The features set out in the following paragraphs may, optionally, be implemented, independently of one another or in combination with one another:

[0014] The non-intrusive current probe belongs to the group comprising: - an opening toroid current probe; - a Hall effect current sensor; - a Rogowski torus.

[0015] The measuring device is electrically powered by a current taken by the voltage probes on the power supply line. Alternatively, the measuring device operates on battery or battery power.

[0016] The configuration data belongs to the group comprising: - a customer identifier; - a value of the determined recording frequency; - a value of the determined transmission frequency; - a nature of the measurement data to be generated or transmitted by the first wireless communication module.

[0017] The first wireless communication module is capable of communicating according to a LoRa type communication standard and the second communication module is capable of communicating with the portable processing device according to a wired communication technology.

[0018] The measuring device is sized to be able to be installed in an individual electrical connection box or a floor distribution box or an emergency box and it is the same color as this box. It can also be installed in a transformer station.

[0019] In the context of the method of detecting a non-technical loss, the transmission of the second measurement data to the server is carried out by a first wireless communication module of the measuring device according to the determined transmission frequency and / or via a portable processing device in communication with a second bidirectional communication module of the measuring device.

[0020] Such a method also comprises a comparison of a sum of the first measurement data of the portion and the second measurement data of electrical consumption received by the server, and a generation of an indicator for detecting a non-technical loss on the portion in the event of divergence of the sum of the first measurement data and the second measurement data. Brief description of the drawings

[0021] Other characteristics, details and advantages will appear on reading the detailed description below, and on analyzing the attached drawings, in which: Fig.l

[0022] [Fig.l] is a synoptic view of a customer installation of an electricity distribution network. Fig. 2

[0023] [Fig.2] shows an electrical consumption measuring device installed in an individual electrical connection box according to one embodiment. Fig. 3

[0024] [Fig.3] illustrates the various constituent elements of an electrical consumption measuring device according to one embodiment. Fig. 4

[0025] [Fig.4] is a synthetic diagram of the internal structure of an electrical consumption measuring device according to one embodiment. Fig. 5

[0026] [Fig.5] shows a non-technical loss detection system integrating an electrical consumption measuring device according to one embodiment. Fig. 6

[0027] [Fig.6] presents in the form of a histogram the comparison of the measurement data provided by the customer's electricity meter and by the electricity consumption measuring device according to one embodiment. Description of the embodiments

[0028] Reference is now made to [Fig.l], in which the public space 1 and a private space 2 corresponding to the home of a customer of an electricity distribution network are represented. As an illustrative example, the home of the customer in [Fig.l] is a single-family house. It could of course also be an apartment within a residential building, or an industrial or commercial installation.

[0029] The customer's property is equipped with a connection circuit breaker referenced 12, placed upstream of the customer's electrical installation (referenced 22 in [Fig.2]), and a meter referenced 13, which makes it possible to measure the electrical consumption of his home. For example, this meter 13 is a communicating meter, which transmits daily to a remote server an index of the electrical consumption of the customer's installation, by a Power Line Communication (PLC) technique.

[0030] An individual electrical connection box (QBE) referenced 10 is installed outside the customer's private property 2, in the public space 1. It allows the connection of the customer's home to the public electricity distribution network referenced 11. It constitutes the junction point between the public electricity distribution network and the connecting electric cable which connects the network 11 to the customer's home. It is placed at the boundary between the public domain 1 and the customer's private property 2. In the case where the customer's home is an apartment within a building, the box 10 is called a floor distributor box, and serves the different apartments located on the same floor of a building. A floor distributor box is generally installed per floor of the building. These boxes 10 are generally locked, and are only accessible to agents or technicians of the electricity distribution network.

[0031] The electrical consumption measuring device according to the present disclosure, referenced 23, is intended to be installed in such a box referenced 10, i.e. on the public electricity distribution network, upstream of the customer's meter 13, and on the latter's electrical supply line referenced 24 (phase P and neutral N), as illustrated in [Fig. 2]. The device 23 is connected downstream of the circuit breakers 20 and 21 of the box 10.

[0032] It will be noted that in the example of Figures 1 and 2, a single-phase power supply line 24 has been shown. However, throughout this document, the term power supply line refers to both a single-phase power supply line comprising a phase and a neutral and a three-phase power supply line comprising three phases. The electrical consumption measuring device 23 according to the present disclosure may be configured to be installed on a single-phase power supply line, as well as on a three-phase power supply line.

[0033] The electrical consumption measuring device 23 allows, according to a new and inventive approach, the detection of non-technical losses on the electricity distribution network 11. Indeed, such an electrical consumption measuring device takes the form of a communicating electric meter with instant installation. Its elements are illustrated in [Fig.3].

[0034] In one embodiment, it comprises a case referenced 31, cream-colored, i.e. the same color as the box 10, in which it is therefore integrated in complete discretion, without attracting the attention of the potential fraudulent customer. In the example of [Fig. 3], three electrical cables are connected to the box referenced 31, which are preferably chosen to be the same color as the power cables of the power supply line 24, again for a question of discretion of the installation of the measuring device 23 in the box 10. In this example, two of these electrical cables are connected to voltage probes referenced 34, and the last cable is connected to a current probe referenced 33. The number of voltage probes 34 must of course be adapted according to the customer's electrical installation, from at least two for a single-phase meter to three or four for a three-phase meter. Similarly, for an installation on a three-phase power supply line 24, the electrical consumption measuring device 23 preferably comprises three current probes 33, for each of the three phases.

[0035] Thanks to the use of one or more non-intrusive current probe(s) 33, such a measuring device 23 can be installed in a few seconds on the public electricity network 11, and without any cut-off on the customer's branch. The work of the technicians is therefore made easier, since it is quick and secure to install such a measuring device 23 in an individual electrical connection box or a floor distribution box 10 present on the public electricity distribution network 11. In addition, its installation is not easily detectable by the customer, since it is done without any cut-off, even temporary, of the electricity distribution, and therefore makes it possible to measure the electrical energy that the customer actually consumes, without arousing the latter's suspicion.

[0036] Furthermore, such a measuring device 23 is communicative and allows the transmission of the customer's electrical energy consumption measurements to a server of the electricity distribution network manager, where they will be compared with the reading of the electricity meter 13 installed in the customer's property 2.

[0037] Such a transmission can advantageously be made directly to the server, by radio transmission. In one embodiment, this transmission complies with the LoRa (for “Long Range”) wireless transmission standard, which allows connected objects to transmit over a long range with low power consumption, for small data at a low speed. It is advantageous for this transmission to be carried out according to the transmission frequency determined for the transmission of the measurement data from the communicating meter 13 installed at the customer’s home 2. For example, for the French electricity distribution network managed by the Applicant, the communicating meter installed at the customer’s home transmits daily shortly after midnight the readings recorded for the 24-hour period which has just ended.In this example, the electrical consumption measuring device 23 according to the present disclosure therefore also transmits, . shortly after midnight, all or part of the measurement data it has generated over the past 24 hours, so that they can be compared with the readings recorded by the customer's meter.

[0038] Such a transmission is advantageous in that it allows a simple and rapid comparison with the indexes recorded by the customer's meter 13, in the case where the measuring device 23 is installed in an area where radio coverage is satisfactory.

[0039] Such a transmission can also be made indirectly to the server, via a portable processing device, which relays the direct radio transmission, for example in the case where the measuring device 23 is installed in an area in which the radio coverage is not sufficient. In this case, a memory is advantageously provided in the measuring device 23, in which all the measurement data generated by the device 23 are recorded, preferably in time-stamped form. Such a portable processing device can be a smartphone, a tablet or a laptop PC of a sworn technician of the manager of the electricity distribution network.

[0040] These measurement data can then be read by the portable processing device, from the memory of the measuring device: this reading can for example be carried out by a wired connection of the measuring device 23 to the portable processing device, for example a USB cable connection 30 between the technician's smartphone and the measuring device 23.

[0041] In this case, the technician can, in one reading operation, retrieve on his smartphone all the measurement data recorded in the memory of the measuring device 23 during a completed measurement campaign, for example corresponding to the last five days.

[0042] The portable processing device can also be used to configure the measuring device 23: when the technician connects his smartphone to the instant-installation communicating meter, he can configure the measurement data generation module so that it associates, for example, an identifier of the customer, or of his meter 13, with the measurement data that it generates, as well as to define a time step for the measurement, or even the nature of the measurement data to be generated (energy consumed, voltage, power, etc.). The technician can thus choose the frequency of recording the measurement data in the memory of the measuring device 23, or even the frequency of transmission of the measurement data by the first wireless communication module.It can also choose which data is transmitted to the server by the first wireless communication module, and which is generated but simply recorded in the memory awaiting retrieval by the portable processing device.

[0043] It is possible in particular to imagine that the data generation module makes it possible to generate more measurement data than that transmitted to the server by the first wireless communication module, which may be limited in terms of data rate or volume. In this case, additional measurement data are generated but are not transmitted according to the determined transmission frequency, for example daily, to the server: they are instead recorded in the memory, and retrieved by a technician, when connecting his portable processing device to the memory of the measuring device 23. They can then be transmitted by this portable processing device to the server of the electricity distribution network manager, as soon as communication is possible between these two devices, by WiFi® or by 4G or 5G type radiocommunication for example.

[0044] The coexistence of these two modes of communication of the measurement data between the measurement device 23 and the server of the manager of the electricity distribution network makes it possible to ensure redundancy, and therefore security of the recovery of these data by the server, whatever the conditions of installation of the claimed measurement device, and in particular the coverage in means of communication of the zone in which it is installed.

[0045] Furthermore, the measurement data sent daily to the server by the first wireless communication module, if it is operational, makes it possible to quickly form an initial opinion on the existence or not of a PNT, the extent, characteristics or nature of which can then be specified by analysis of the complete measurement data sent to the server by the second bidirectional communication module, via the portable processing device.

[0046] In one embodiment, the first wireless communication module and the second bidirectional communication module can be combined into a single communication module. These first and second communication modules, the memory, and the measurement data generation module are integrated into the housing referenced 31, which is preferably sealed so that it can be placed outdoors. This sealing can be ensured by means of a seal around the perimeter of the housing 31.

[0047] As indicated above, the use of a non-intrusive current probe 33 makes it possible to measure the current without causing electrical cuts when installing or removing the claimed measuring device 23.

[0048] In one embodiment, such a non-intrusive current probe 33 takes the form of a split-core current transformer. Split-core current transformers have the advantage of being very quick to install, thanks to a clip or button opening, and do not require the power cable to be centered relative to the transformer. They are compact and allow reliable current measurement.

[0049] In another embodiment, wherein the current to be measured is a current continuous, the non-intrusive current probe 33 takes the form of a Hall effect current sensor. The Hall effect current sensor is a type of current sensor that exploits the Hall effect to produce a voltage that is the exact image (with a known proportionality factor) of the current to be measured. Its advantages include, among others, a relatively wide bandwidth, good galvanic isolation, and good immunity to interference.

[0050] In another embodiment, the non-intrusive current probe is a Rogowski coil, or a Neel effect current sensor. The advantage of a Rogowski coil over other types of current sensors is that it can be opened and is very flexible, allowing it to be wrapped around a phase conductor without stress.

[0051] The electrical consumption measuring device 23 can operate on a battery or battery. In another embodiment, it is electrically powered by a current taken from the electrical supply line 24 of the customer installation by the voltage probes 34: this eliminates the need for a battery, which contributes to the compactness of the measuring device, and therefore to its discretion.

[0052] Indeed, as indicated previously, such a measuring device 23 is sized to be able to be installed in an individual electrical connection box (CIBE) or a floor distribution box 10, which are generally cramped and not very spacious. The housing 31 is therefore preferably compact, and as thin as possible to be able to be arranged between two fuses of the box 10. In one embodiment, the housing 31 has dimensions of 9 cm x 5 cm x 2 cm. Its compactness contributes to its discretion.

[0053] The housing 31 preferably has a hanging point allowing it to be easily suspended from the cables or attached to the box 10 during its installation by the technician.

[0054] In one embodiment, the voltage probes 34 are equipped with 4mm plugs (also called banana plugs), which allows them to be equipped, as desired, with crocodile clips referenced 35 or magnetic connectors referenced 32 (which stick to the screws of the live terminals, typically when the box 10 has an IP65 protection rating, i.e. it is dustproof and protected against water splashes).

[0055] The method for detecting non-technical losses according to one embodiment is now presented in relation to Figures 4 and 5.

[0056] When the electricity distribution network manager wishes to check the presence of PNT on a customer installation, a technician is sent to install an electricity consumption measuring device 23 in the box 10, on the customer's electricity supply line 24, in the public network 1. Before its installation, the technician connects his smartphone 48 to the measuring device 23, for example by means of a USB cable. The smartphone 48 then enters into communication with the communication module C0MM_2 referenced 42, and transmits to it various configuration data such as a customer identifier, the type of measurements to be carried out and the step of these measurements. This configuration by smartphone makes it possible to dispense with the presence of a configuration interface on the measuring device 23, such as a keyboard and a screen for example, which makes the device 23 more compact and therefore more discreet. When this configuration phase is completed, the technician hangs the measuring device 23 in the box 10, and connects the voltage 34 and current 33 probes to the various cables of the power supply line 24.This installation is carried out without interruption of the power supply to the customer installation, in complete safety, thanks to the use of a non-intrusive current probe 33. After closing the box 10, the technician can leave the area, to which he will only return at the end of the measurement campaign, which can last several days.

[0057] The configuration data received by the communication module C0MM_2 42 are recorded in a memory MEM 44 of the device 23. A processor PROC 45 controls the measurement data generation module GEN_DATA 43, on the basis of this configuration data. The module GEN_DATA 43 receives the measurements MES 46 carried out by the current 33 and voltage 44 probes to which it is connected. At least part of this measurement data is sent (El), according to a determined transmission frequency (for example daily shortly after midnight) by the communication module COMM_1 41 to a server 47 of the electricity distribution network manager. This transmission El is done for example by radio, according to the LoRa® transmission standard.

[0058] In parallel, all of the measurement data generated by the GEN_DATA module 43 are recorded in the MEM memory 44, according to the measurement step configured at initialization. At the end of the measurement campaign, the technician returns to the site, disconnects the measurement device 23 and removes it from the box 10. He can then reconnect his smartphone 48 to the device 23, by USB cable, to retrieve (E2), via the COMM-2 communication module, all of the measurement data that have been recorded in the MEM memory 44. As soon as the smartphone 48 has access to a cellular (3G, 4G, 5G) or local (Wi-Fi® for example) communication network, it transmits (E3) all of this data to the server 47 of the electricity distribution network manager.

[0059] The server 47 therefore receives the measurement data from the device 23, either directly (El) by radio, or indirectly (E2, E3) via the smartphone 48. In parallel, it also receives daily the indexes of the customer's electricity consumption, which are sent to it (E4) by the communicating meter 13 installed at the customer's home. client. A comparison module, within the server 47, makes it possible to compare the data received from the meter 13 and the measuring device 23, and to detect a non-technical loss in the event of a divergence of these data.

[0060] The result of this comparison can be returned to the technician in the form of a histogram 50, as illustrated in [Fig.6]. This histogram 50 can be displayed directly on the screen of the smartphone 48, or accessible on a website that the technician can consult using a PC.

[0061] The histogram 50 shows the daily energy consumed by the customer, as measured by the meter 13 on the one hand, and used for billing, and by the measuring device 23 on the other hand. When the energy measured by the measuring device 23 is higher than that measured by the conventional meter 13, a non-technical loss is highlighted. The histogram 50 also makes it possible to display, in the form of a horizontal line, the maximum power measured by the meter 13 on the one hand, and by the measuring device 23 on the other hand. It is thus possible to highlight a possible modification of the meter 13 by the fraudulent customer, in order to be able to have a maximum power higher than that of the contract to which he has subscribed. Other visual representations of the compared measurement data can be proposed, such as energy curves, voltage events, cumulative energy, voltage, according to the data measured by the device 23.

[0062] The electricity consumption measuring device 23 according to the present disclosure provides at least two decisive advantages: if the customer is not a fraudster, the sworn agent does not exhaust himself trying to enter the home unnecessarily, and can check him without having to access the home. The quality of the customer relationship therefore does not suffer from a suspicion of fraud that is ultimately not proven. On the other hand, if the customer is a fraudster, the sworn agent can inform him on the doorstep of the observation of an anomaly between what is actually consumed and what is counted (billed) by the electricity meter.

[0063] The embodiments described above in relation to Figures 1 to 6 relate to a context of application of the present disclosure, in which the network manager has suspicions as to the existence of fraud by a customer, and uses the electricity consumption measuring device 23 to remove any doubt as to the existence of this fraud. In a complementary embodiment, this device 23 can also be used for larger-scale fraud detection on the electricity distribution network.

[0064] To this end, the measuring device 23 is configured to be installed on a three-phase electrical supply line 24, in the emergency boxes of the electrical network, from which it is possible to create one or more branches of the network. The device 23 can collect the total energy drawn by the customers downstream of the device and thus detect any possible difference between the actual consumption measured by the device 23 and the sum of the energies measured daily by the individual communicating electricity meters of all the customers located downstream of the emergency box.

[0065] For example, if the device 23 is located at a transformer supplying a cluster of customer installations, it is possible to measure, using the measuring device 23, the electrical consumption across the entire cluster. Underlyingly, the device can also be installed in an emergency box that supplies a subset of the cluster of customer installations. Each of the communicating electrical meters in the cluster also measures daily the energy produced by the electrical production means of each customer installation - such as photovoltaic panels for example - subtracting from the total.By comparing these two power consumption values ​​for the cluster, it is possible to detect a divergence, and, depending on its value, to identify whether it results from technical losses resulting from the Joule effect on the cluster's power cables, or whether it more likely reflects the existence of non-technical losses.

[0066] By moving the device 23 further downstream on the cluster, and by carrying out another measurement campaign on one of the branches of the cluster's power tree, it then becomes possible to locate the deviating zone more and more precisely by dichotomy until the fraudulent customer is identified.

[0067] Alternatively, it is possible to leave the device 23 in the emergency box in which it was installed, and to add several secondary measuring devices 23, for example one on each of the branches of the tree network of the cluster. A comparison is then made again, for each of these secondary devices 23, of the electrical consumption measured by the secondary measuring device 23 and the sum of the electrical consumptions reported by the communicating electrical meters of the customer electrical installations of the branch on which the secondary measuring device 23 is installed. A divergence of the consumptions measured at one of the secondary measuring devices 23 makes it possible to identify the branch of the cluster on which the PNTs occur.By placing measuring devices 23 further and further downstream on the network, it is ultimately possible to precisely identify the fraudulent customer electrical installation(s).

[0068] By using a moderate number of measuring devices 23, it is thus possible for the manager of the electricity distribution network to have a new capacity to detect fraud, thanks to the design of electricity consumption measuring devices 23 which are compact, therefore discreet, and can be installed in just a few minutes at any point in the electricity distribution network.

Claims

Claims

1. Device (23) for measuring electrical consumption, configured to be installed on an electrical supply line (24) of a public electricity distribution network upstream of an electrical meter (13) of a customer, comprising: - at least one non-intrusive current probe (33) configured to measure a current flowing on said electrical supply line without causing a cut-off of said line (24) during installation, and at least two voltage probes (34); - a module (43) for generating electrical consumption measurement data from measurements (46) provided by said current and voltage probes; - a memory (44) for recording said measurement data according to a determined recording frequency;- a first wireless communication module (41), configured to transmit at least some of said measurement data, according to a determined transmission frequency, to a server (47) of a manager of said public electricity distribution network; - a second bidirectional communication module (42) configured to receive configuration data from a portable processing device (48) and to transmit said measurement data recorded in the memory to said portable processing device.;

2. Device for measuring electrical consumption according to claim 1, characterized in that said at least one non-intrusive current probe (33) belongs to the group comprising: - an opening toroid current transformer; - a Hall effect current sensor; - a Rogowski coil; - a Neel effect current sensor.

3. Device for measuring electrical consumption according to any one of claims 1 and 2, characterized in that it is electrically powered by a current taken by said at least two voltage probes (34) on said electrical supply line (24).

4. Device for measuring electrical consumption according to any one of claims 1 to 3, characterized in that said configuration data belong to the group comprising: - a client identifier; - a value of said determined recording frequency; - a value of said determined transmission frequency; - a nature of said measurement data to be generated or transmitted by said first wireless communication module.

5. Device for measuring electrical consumption according to any one of claims 1 to 4, characterized in that said first wireless communication module (41) is capable of communicating according to a LoRa type communication standard and in that said second communication module (42) is capable of communicating with said portable processing device (48) according to a wired communication technology.

6. Device for measuring electrical consumption according to any one of claims 1 to 5, characterized in that it is sized to be able to be installed in an individual electrical connection box (10) or a floor distributor box (10) or an emergency box and in that it is the same color as said box.

7. System for detecting a non-technical loss on an electricity distribution network, said system comprising: - at least one communicating electric meter (13) of at least one electrical installation of a customer, configured to transmit first data for measuring the electrical consumption of said installation, according to a determined transmission frequency, to a server (47) of a manager of said electricity distribution network; - a device (23) for measuring an electrical consumption according to any one of claims 1 to 6, installed in said public electricity distribution network (11) on an electrical supply line (24) upstream of said at least one communicating electric meter (13), and configured to transmit second data for measuring the electrical consumption of said at least one installation according to said determined transmission frequency to said server;- a portable processing device (48), capable of connecting to said device for measuring electrical consumption in order to transmit configuration data to it and to receive said second electrical consumption measurement data recorded in a memory (44) of said measuring device, said portable processing device further comprising a configured communication module; to transmit (E3) said second measurement data received to said server; - a module for comparing a sum of said first measurement data and said second electrical consumption measurement data received by said server, capable of generating a detection indicator (50) of a non-technical loss on a portion of said network located downstream of said measurement device in the event of divergence of said sum of said first measurement data and said second measurement data.

8. Method for detecting a non-technical loss on a portion of an electricity distribution network, said portion comprising at least one electrical installation of a customer comprising a communicating electricity meter (13), configured to transmit first electrical consumption measurement data of said installation, according to a determined transmission frequency, to a server (47) of a manager of said electricity distribution network, characterized in that said method comprises: - a configuration of a device (23) for measuring electrical consumption according to any one of claims 1 to 6, by means of a portable processing device (48); - an installation of said configured measuring device, on an electrical supply line (24) upstream of said at least one communicating electricity meter, without cutting off said line;- a generation of second electrical consumption measurement data from measurements provided by at least one current probe (33) and at least two voltage probes (34) of said measuring device; - a transmission (E1-E3) of said second measurement data to said server (47) of the manager of said electricity distribution network.;

9. Method for detecting a non-technical loss according to claim 8, characterized in that said transmission of said second measurement data to said server is carried out by a first wireless communication module of said measurement device according to said determined transmission frequency and / or via a portable processing device in communication with a second bidirectional communication module of said measurement device.

10. A method of detecting a non-technical loss according to any one of of claims 8 and 9, characterized in that it also comprises a comparison of a sum of said first measurement data of said portion and said second electrical consumption measurement data received by said server, and a generation of an indicator for detecting a non-technical loss on said portion in the event of divergence of the sum of said first measurement data and said second measurement data.

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