A method for operating a power consumption metering system and a power consumption metering system are disclosed. In an embodiment a method include measuring, by a sensor deployed at a monitored site, high speed power consumption values over time to obtain a high speed value pattern of power consumption with a resolution of more than 1000 values per second, determining one or more harmonics of the high speed value pattern, measuring, by the sensor, low speed power consumption values over time to obtain a low speed value pattern of the power consumption with a resolution of less than 100 values per second, providing the harmonics and the low speed value pattern to a cloud based data processing system and identifying a status of a power consumer of the monitored site dependent on the measured harmonics and the low speed value pattern.
In an embodiment a method for operating a power consumption metering system includes measuring, by a sensor deployed at a monitored site, power consumption values over time to obtain a high speed value pattern of a power consumption with a resolution of more than 1000 values per second, measuring, by the sensor, low speed power consumption values over time to obtain a low speed value pattern of the power consumption with a resolution of less than 100 values per second, identifying a status of a power consumer of the monitored site dependent on the high speed value pattern and counting an operation time of the power consumer dependent on the low speed value pattern and on the identified status.
G01R 22/06 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
G01R 22/10 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
A measuring sensor, a measuring device, a detection module, a measuring method and a calibration method are disclosed. In an embodiment a measuring sensor includes at least one inductive current transformer configured to generate an electrical measurement signal dependent on a current flow in a conductor passing through the inductive current transformer, a terminal configured to connect the inductive current transformer to a measuring transducer, wherein the inductive current transformer is electrically connected to at least two terminal contacts of the terminal in order to transmit the electrical measuring signal to the measuring transducer and a detection module connected between the inductive current transformer and the two terminal contacts, wherein the detection module is configured to return a response signal when a retrieval signal is applied to the two terminal contacts.
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
The present invention relates to an energy metering system for determining electrical loads of a distribution panel, sensor devices, and fuse boxes for an energy metering system. The energy metering system includes a plurality of sensors for sensing an electrical load of the plurality of circuit breakers and providing corresponding sensor data, wherein the plurality of sensors are arranged in proximity to a plurality of circuit breakers of the distribution panel. The energy metering system also includes a data processing system for converting the sensor data of the plurality of sensors into electrical load information for a plurality of electrical circuits protected by corresponding circuit breakers, and at least one energy harvesting device for powering the plurality of sensors. The at least one energy harvesting device is arranged in front of a protective cover of the distribution panel covering the plurality of electrical circuits.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
H02B 1/04 - Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
A visualization system for visualizing electrical loads of an electrical distribution panel is disclosed in one embodiment. The system includes a sensor arrangement for sensing an electrical load of a plurality of electrical circuits protected by corresponding circuit breakers of the distribution panel and for providing corresponding sensor data, a data processing system for aggregating and storing the sensor data of the sensor arrangement, and a portable device. The portable device includes an image capturing unit and a display screen. It is configured to obtain a live image of at least a part of the electrical distribution panel from the image capturing unit, to identify individual circuit breakers within the live image, to obtain load information at least for the identified circuit breakers from the data processing system and to display the obtained load information in a structured way on the display screen of the portable device.
An energy metering system includes a plurality of sensors arranged in proximity to circuit breakers of a distribution panel for sensing a magnetic field in the area of the circuit breakers and providing corresponding sensor data. The system further includes a data processing system for converting the sensor data of the plurality of sensors into electrical load information for a plurality of electrical circuits protected by corresponding circuit breakers. The system further includes a calibration unit configured to determine at least a reference voltage and a reference current of at least one circuit. The data processing system is configured to calibrate a relationship between the sensor data and the load information based on the reference voltage and reference current determined by the calibration device in a calibration mode of the energy metering system.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 35/04 - Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 22/10 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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