Electricity meter

About: Electricity meter is a research topic. Over the lifetime, 7894 publications have been published within this topic receiving 42430 citations. The topic is also known as: electric meter & electrical meter.

Improvements in or relating to electricity meters

Abstract: An electricity meter comprising input terminals to which in use a mains electricity supply is connected, output terminals via which in use electricity is fed to a consumer, a switch via which electricity is fed from the input terminals to the output terminals and metering means operative to provide an indication of the quantity of electricity fed via the switch to the consumer, the meter being adapted to receive a unit arranged in operative association with the switch so as to effect operation of a switch actuator to open the switch for the purpose of interrupting the supply of electricity to the consumer consequent upon receipt by the unit of a predetermined actuation signal.

Electricity meter adapter has a hollow case with push fit electrical and mechanical connection with locking hooks

Abstract: An electricity meter (3) adapter (1) has a hollow case with meter mounting cross pieces (5, 6) and automatically connects the meter to the current leads without using tools by pressing a contact element (7) against a contact nose and hooks (34) fitting into the meter support plate

Meter for measuring and displaying the power consumption of an electrical appliance and the time period of such power consumption

Abstract: A power meter (10) is provided which can plug into an electric wall socket and it is provided with its own socket (16) for receiving the plug of an electrical appliance. The power meter has means for measuring electric current flow to an electrical appliance and indicates the amount of electrical power consumed by an appliance. In alternative embodiments, the meter is provided as an integral part of an electric wall switch (30) or wall socket (40) or it is built into an electrical appliance (50). In another embodiment, the power meter has a plurality of sockets for receiving the plugs of a number of electrical appliances for separately indicating the power consumption of each appliance.

Measuring Process for Measuring Chargeable Electrical Consumption from an Electrical Network and Electronic Electricity Meter

Abstract: A process is described for the measurement of electricity consumption, that is specially suitable for small consumers, comprising the steps of continuously measuring consumer current, integrating said current with time to obtain a value (A.h) relating to consumption; adjusting the integration in function of the voltage of the network to obtain an adjusted value (Av.h) proportional to a preestablished unit of electricity consumption; and computing the number of preestablished units obtained to provide a value proportional to chargeable electricity consumption. Preferably, the adjustment to the integration is carried out in accordance with four bands of network voltage, in the form of a nominal band on either side of the nominal network voltage, an overvoltage band, an extended voltage band below the nominal band an an undervoltage band. An electricity meter without any power source is also described, comprising a current transformer (TC) having the consumer load line (15) as primary and a secondary generating a current representative of the current in the load line, a circuit connected to the secondary to integrate the value of such current with time, detector means for detecting when the integration circuit reaches a preestablished chargeable unit value of consumption of electricity and counter means associated with the detector means to sum the detected units of consumption. A housing is also described which is a single part and of extremely simple manufacture.

A Dedicated Mixture Model for Clustering Smart Meter Data: Identification and Analysis of Electricity Consumption Behaviors

Abstract: The large amount of data collected by smart meters is a valuable resource that can be used to better understand consumer behavior and optimize electricity consumption in cities. This paper presents an unsupervised classification approach for extracting typical consumption patterns from data generated by smart electric meters. The proposed approach is based on a constrained Gaussian mixture model whose parameters vary according to the day type (weekday, Saturday or Sunday). The proposed methodology is applied to a real dataset of Irish households collected by smart meters over one year. For each cluster, the model provides three consumption profiles that depend on the day type. In the first instance, the model is applied on the electricity consumption of users during one month to extract groups of consumers who exhibit similar consumption behaviors. The clustering results are then crossed with contextual variables available for the households to show the close links between electricity consumption and household socio-economic characteristics. At the second instance, the evolution of the consumer behavior from one month to another is assessed through variations of cluster sizes over time. The results show that the consumer behavior evolves over time depending on the contextual variables such as temperature fluctuations and calendar events.