Utilities are one of the electrical departments, which install these instruments at every place like homes, industries, organizations, commercial buildings to charge for the electricity consumption by loads such as lights, fans, refrigerator, and other home appliances. Implementation of a singlephase electronic watthour meter. It is a type of multimeter which functions digitally. Select the help menu, and then topics to open a list of available online help files. Digital multifunction meter help save electric energy by measuring and monitoring usages. Working in the field of ai and ann machine learning with smart meter analytics for smart microgrid and smartgrid environments energy informatics, bid data. The energy meter is an electrical measuring device, which is used to record electrical energy consumed over a specified period of time in terms of units. Pdf it is undoubtedly that in the future, energy would cost more as the direct result. Wireless energy meter is a system developed to serve as a basic singlephase energy meter with advanced functionalities such as peak hour setting, peak load setting wireless reading transmission. Wireless energy meter monitoring with automatic tariff. Wireless energy meter monitoring with automatic tariff calculation the purpose of this project is to remote monitoring and control of the digital energy meter. Implementation of a singlephase electronic watthour.
Utilities are one of the electrical departments, which install these instruments at every place like homes, industries, organizations, commercial buildings to charge for the electricity consumption by loads such as. Secondly, the orientation problem associated with electromechanical energy meter is completely a nonissue in a digital energy meter. If a meter is used in combination with a current transformer. Get info of suppliers, manufacturers, exporters, traders of digital energy meter for buying in india. This explains why electronic voltmeters do not load. Electronic energy meter industrial applications vishay. How electronic energy meter works mohans electronics blog. Apr 17, 2014 types of energy meters standard meters.
Mechanism of counting and displaying the amount of energy transferred. Thirdly, the user friendly display in the digital meters makes energy reading from time to time very easy. The software supports calculation of various parameters for singlephaseenergy measurement. Accuracy of digital electricity meters beginning in the 1980s, and becoming the norm in the 1990s. Based on the flow of current, the ferriwheel rotates which makes rotation of other wheels. Digital meters frequently asked questions origin energy. Measured quantities rms values of voltages and currents. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. A wide variety of digital energy meters options are available to you, such as digital only, analog and digital.
A simple 3 phase disk type energy meter is present in the diagram below. The idea of designing the digital household energy meter is due to the basis. The three phase meter is constructed by connecting the two single phase meter through the shaft. Mcp3901 and pic18f65j90 energy meter reference design. But these are now being gradually replaced by electronic digital energy meters.
It has a rotating aluminium wheel called ferriwheel and many toothed wheels. Digital fuel meter fm20 groz engineering tools pvt ltd. There are a range of older meters some have dials and others have digital displays but these cant be read remotely. Analogforthedigital age, application maestro, dspicdem. Electromechanical energy meters have been the standard for metering the electricity since billing began. Pdf automatic energy meter reading using smart energy meter. A standard meter is a basic electromechanical induction meter measures electricity consumption in terms of kilowatthours the amount of energy used by a load of one kilowatt over the period of one hour. Some information is given on oscilloscopes as one of the important voltage measuring devices, although they are generally not classified as voltmeters or ammeters. It enables systematic pricing of energy consumed by individual consumer as it measures the amount of electrical energy consumed by a residence, business, or an electrically powered device 1.
So the eem is known as static energy meter in eem the accurate functioning is controlled by a specially designed ic called asic application specified integrated circuit. Digital power and energy meter with dsp tms320c6711. Energy meters are the basic part to measure the power consumption. The file may be stored either in the same directory as the mtr file meter file.
The total energy is the sum of the reading of both the elements. What is the solution for the drawbacks of commonly used energy meters. In order to accurately measure the electronic energy used for a electronic energy meter, suitable hardware and software have to be designed. The data are sto red in text format csv, comma separated values. Aug, 2006 basic working of a modern electronic energy meter as in the block diagram, the meter has a power supply, a metering engine, a processing and communication engine i. Overview of single phase induction type energy meter.
Pdf the energy metering technology used presently in nigeria is not highly reliable. Digital meters electronic digital meter latest price. All industrial sectors need to integrate these new technologies and manage the transition to a smart industrial society. To summarize, heres is the play by play of the entire meter installation customer experience. The dial of the disk meter shows only kwh usage since the time of energy meter installation.
A9mem3255 iem3255 energy meter ct modbus 1 digital i 1. Extremely accurate measurements with digital display. The circuit shown in figure1 is the circuit of energy metering. A second terminal block between the current transformer and the meter simplifies service work. An994 iec compliant activeenergy meter design using the mcp3905a06a ds00994 this application note documents the design decisions associated with using the mcp390x devices for energy meter design and iec compliance. Design and implementation of wireless energy meter system for. A working prototype of complete system has been developed using digital energy meter manufactured by microtech industries, pakistan, to demonstrate an efficient and transparent means of automatic. Analysis of present state of the digital power meter field calibration. Energy meter or watthour meter is an electrical instrument that measures the amount of electrical energy used by the consumers. The analog electronic voltmeters and ammeters in the form of dc, rectifierbased ac, and true rms. A9mem3255 iem3255 energy meter ct modbus 1 digital i 1 digital o. Power and energy meters software downloads thorlabs. Facilities instructions, standards, and techniques volume 310 watthour meter maintenance and testing internet version of this manual created december 2000 facilities engineering branch denver office denver, colorado the appearance of the internet version of this manual may differ from the original, but the contents do not. It enables systematic pricing of energy consumed by individual consumer as it measures the amount of electrical energy consumed by a residence, business, or.
Energy meter circuit detailed project with source code. Digital voltmeter is the basic instrument used for measurement of voltage through the use of analog to digital converter. This is a microcontroller based wireless energy meter, as 8051 microcontroller is used for controlling the entire system. The electric power required to energize the meters internal circuits and the output. Mar 28, 2017 the dial of the disk meter shows only kwh usage since the time of energy meter installation. The basic principle behind digital multimeters is the analog to digital converter because without this we are not able to convert the analog output into digital form.
The conventional mechanical energy meter is based on the phenomenon of magnetic induction. As recently as the year 2000, however, some still questioned if and when the simpler residential meter would be replaced by a solid state version, and whether they could attain the. Meter is installed all electricity units are charged at the same rate 24 hours a day. Meanwhile, the problem of the distorted current waveform from loads need to be considered. The file may be stored either in the same directory as the mtr file meter file option or in a f ixed. The links below will lead to software and driver downloads for our power and energy meters software downloads.
This application report has the complete metrology source code. Implementation of a singlephase electronic watthour meter using the msp430f6736 bart basile, stefan schauer, kripasagar venkat abstract this application report describes the implementation of a singlephase electronic electricity meter using the texas instruments msp430f673x metering processor. Digital multimeters are widely accepted worldwide as they have better accuracy. Power and energy meters software downloads the links below will lead to software and driver downloads for our power and energy meters software downloads. An electric meter or energy meter is an essential device that goes with consumption of commercially distributed energy. The key parameters calculated during energy measurements are root mean square rms current and voltage, active and reactive power and energy, power factor, and frequency. Here we discuss the construction and working principle of induction type energy meter. Meter 3490 ss is a 96mm x 96mm panel mounted kilowatt hour meter it measures active energy with class 1. Microcontroller based wireless energy meter working. Powerlogic catalog 247 pages web no printed version available. When measurements are performed with upstream transformers, the displayed energy value must be multiplied by the transformation ratios. An electricity meter, electric meter, or energy meter is a device that measures the amount of electric energy consumed by a residence, business, or an electrically.
Electronic energy meter is based on digital micro technology dmt and uses no moving parts. Design of sms prepaid energy meter for a cashless economy. Current rating for 3 phase disk type energy meter is normally up to 100 amps. For any questions regarding our software, please contact technical support. Jan 06, 2011 digital multifunction meter help save electric energy by measuring and monitoring usages. Remotely read digital meters are different to other meters. Find here online price details of companies selling digital energy meter. Introduction to utility metering tutorial microchip technology. Energy is the product of current and voltagein the case of 3 phase supply power factor must be considered.
Electrical energy meters principles and applications. The energy meter provide the utility company with regular status of the meter on a predefined interval, and also display a real time on the users account update, which contributes to the retrieval of the balance of the meter, as well as keeping log of the consumed energy and remaining. A unit of energy, especially electrical energy, equ the work done by one watt acting for one hour and equivalent to 3,600 joules. Electromechanical type the electromechanical induction meter operates by counting the revolutions of a nonmagnetic, but electrically conductive, metal disc which is made to rotate at a speed pro. Digital multimeter working principle analyse a meter. Mid energy meter b21 singlephase energy meter, 65 a. Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. What are the advantages and disadvantages of usual energy meters. Mcp3901 and pic18f65j90 energy meter reference design users.
By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies. Mcp3901 and pic18f65j90 energy meter reference design users guide. A digital multimeter or dmm is test equipment used for resistance, voltage, current measurement and other electrical parameters as per requirement and displaying the results in the mathematical digits form on an lcd or led readout. It is used everywhere, no matter how big or small consumption it is. Digital multifunction meters from ziegler instruments with multiple parameter measurement is world renowned in the power and energy sector. The torque of both the elements is added mechanically, and the total rotation of the shaft is proportional to the three phase energy consumption. Therefore, this type of meter is also called an integrating meter.
Find details of companies offering digital energy meter at best price. Implementation of a singlephase electronic watthour meter using msp430afe2xx rev. The em 3490ss is available in two version 3phase 4 wire 3 wire unbalanced load and single phase and is ideal for secondary metering in. The microchip web site microchip provides online support via our web site at this web. The three phase energy meter has two discs mounted on the common shaft. There are several adc available in the market, but we. In the case of electronic energy meter different transducers are used to calculate i,v and p. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. Power kw, energy kwh, cost of electricity and comparison monthtomonth usages can be made. An electric meter or energy meter is an essential device that goes with. This system enables the electricity department to read the meter readings regularly without the person visiting inside each house.
T he digital household energy meter had been configured as the view er of the. The electricity consumption meter shown in the figure facilitates the billing of energy meter along with load control using wireless gsm technology. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. In this article, modern electronic voltmeters and ammeters are discussed. To search for the software for your device, please enter the item number here.
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