When used in electricity retailing, the utilities record the values measured by these meters to generate an invoice for the electricity. T he digital household energy meter had been configured as the view er of the. The energy is the total power consumed and utilised by the load at a particular interval of time. Here is the complete explanation of how an electric meter works. Static energy meter is based on stateoftheart electronics technology. Apr 17, 2014 types of energy meters standard meters. Find here online price details of companies selling digital energy meter. How electronic energy meter works mohans electronics blog. Electromechanical energy meters have been the standard for metering the electricity since billing began. The resonance is the condition exists in the circuit when their inductance and capacitance reactance are of equal magnitude. Implementation of a singlephase electronic watthour meter.
Due to alternating fluxes there is an induced emf, the emf produced at one. In all induction meters we have two fluxes which are produced by two different alternating currents on a metallic disc. They induce energy which is oscillating between the electric and magnetic field of the capacitor and inductor respectively. Aug 30, 2017 the most common and least sophisticated kind is an energy meter device or plug load that measures the energy usage of a single device, such as a lamp or a refrigerator. In the case of electronic energy meter different transducers are used to calculate i,v and p. These are capable of communicating in both directions. Energy is the product of current and voltagein the case of 3 phase supply power factor must be considered. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures. Energy meters are the basic part to measure the power consumption. Rectifierbased ac analog voltmeter because of the high input impedance of the electronic amplifier, i2t 0, and hence current imt flowing through the milliammeter, a also flows through the load. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Based on the flow of current, the ferriwheel rotates which.
A single phase microcontroller based energy meter conference paper pdf available in conference record ieee instrumentation and measurement technology conference 2. Wireless energy meter monitoring with automatic tariff. Types of energy meters and their working principles. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device electric utilities use electric meters installed at customers premises for billing and monitoring purposes. Electronic energy meter is based on digital micro technology dmt and uses no moving parts. Oct 30, 2017 an electricity meter, electric meter, electrical meter, or energy meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device. Ammeter definition and working principle electrical academia. The conventional mechanical energy meter is based on the phenomenon of magnetic induction.
A wide variety of energy meter price options are available to you. The trend of automation can be incorporated in presently working digital energy meter to make it smarter. The software supports calculation of various parameters for singlephaseenergy measurement. The power companies benefits from eem in three significant ways. Microcontroller based wireless energy meter working.
Implementation of a singlephase electronic watthour meter using msp430afe2xx rev. Electronic meters need for prepaid energy meter system. The electricity consumption meter shown in the figure facilitates the billing of energy meter along with load control using wireless gsm technology. Whats the difference between an energy meter and a smart. The total energy is the sum of the reading of both the elements.
Jul 25, 2018 work philosophy based on ohm meter or ratio meter. If the analog meter is bidirectional it will spin backwards when your solar electric system is pushing extra electricity. Mechanism of counting and displaying the amount of energy transferred. Different types of energy meters electrical concepts. If one uses one kilowatt in onehour duration, one unit of energy gets consumed. Overview of single phase induction type energy meter. One single phase energy meter, one single phase load, stop watch and connecting wires.
The ac kilowatt hour meters used at present operate on the same principle as blathys original. To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. Here we discuss the construction and working principle of induction type energy meter. Pdf digital domestic meter for the measurement and billing of. What is the differance between digital energy meter. It states that in a steady, ideal flow of an incompressible fluid, the total energy at any point of the fluid is constant.
Energy meter is an instrument which measures electrical energy. Working of single phase induction type energy meter the basic working of single phase induction type energy meter is only focused on two mechanisms. 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. Sep 03, 2017 analog meters also known as electromechanical are the most common, the simple meter spins forward when your using electricity. The energy data is to be displayed graphically on the hmi. A mechanical disk present inside the meter rotates when the load applied. Mcp3901 and pic18f65j90 energy meter reference design. The total energy consists of pressure energy, kinetic energy and potential energy or datum energy. Principles for the evolution of net energy metering. 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. Measured quantities rms values of voltages and currents.
It is used in domestic and industrial ac circuit for measuring the power consumption. Digital multifunction meters from ziegler instruments with multiple parameter measurement is world renowned in the power and energy sector. The rotation of this disk is base of energy measurement 8. Digital multimeter working principle analyse a meter. They can transmit the data to the utilities like energy consumption, parameter values, alarms, etc and also can receive information from utilities such as automatic meter reading system, reconnectdisconnect instructions, upgrading of meter softwares and other important messages. Electronic energy meter industrial applications vishay. Pdf the energy metering technology used presently in nigeria is not highly. Potential free pulse output for external energy totalization. The conventional method of electricity billing involves a person from the distribution unit reading the number of units of electricity consumed in the energy meter, conveying this information to the distribution unit and then preparing the bill according to the units consumed for a fixed amount of time. The torque of the megger varies in a ration with vi, ohms law. The file may be stored either in the same directory as the mtr file meter file option or in a f ixed. What is the working principle of energy meter answers.
Prepaymentprepaid energy meter introduction and working. Digital energy meters digital energy meter manufacturer. Energy meter is an integrating instrument which measures the total quantity of electrical energy supplied to the circuit in given period. The most common and least sophisticated kind is an energy meter device or plug load that measures the energy usage of a single device, such as a lamp or a refrigerator. Implementation of a singlephase electronic watthour. Algorithms, electric energy measurement, electricity billing. Digital multimeter working a digital multimeter dmm is an instrument that can measure several basic electrical quantities and shows the measurement with a number in a display. An electric meter or energy meter is an essential device that goes with consumption of commercially distributed energy. 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. All multimeters measure ac and dc voltage voltmeter, ac and dc current ammeter, and resistance ohmmeter.
The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. Energy meter circuit detailed project with source code. Wireless energy meter monitoring with automatic tariff calculation the purpose of this project is to remote monitoring and control of the digital energy meter. Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. Based on the flow of current, the ferriwheel rotates which makes rotation of other wheels. An electric meter or energy meter is a device that measures the amount of electrical energy supplied to a residence or business. Meter 3490 ss is a 96mm x 96mm panel mounted kilowatt hour meter it measures active energy with class 1. The electromechanical induction meter operates by counting the revolutions of an aluminium disc which is made to rotate at a speed proportional to the power. Plug the meter into the wall socket, then plug the device you want to test into the meter, turn on the device and the meter will show how many watts that single device is using. The number of revolutions is thus proportional to the energy usage. A 3phase energy meter has same elements as in case of a singlephase energy meter. Get info of suppliers, manufacturers, exporters, traders of digital energy meter for buying in india. Unesco eolss sample chapters electrical engineering vol.
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. An electric meter or energy meter is a device that measures the amount of energy consumed by a residence, business, or an electrically. This is a microcontroller based wireless energy meter, as 8051 microcontroller is used for controlling the entire system. The digital energy metering system applied in the smart substation are quite different from the traditional meter system, so its nessary to do some research on the digital metering system. Digital power and energy meter with dsp tms320c6711. Find details of companies offering digital energy meter at best price. The working principle of an electronic energy meter is a device that measures the electronic energy consumed usually in kwh. Electrical energy meters principles and applications. In particular, conventional current flows into the positive terminal for an upscale meter deflection as shown in above figure.
Principles for the evolution of net energy metering and rate design share this document provides a consensus view of solar advocates for regulators and stakeholders considering rate design and compensation for distributed solar generation, including potential alternatives to net energy metering. An energy meter is used to measure the energy consumed in the kilowatt hours. Jul 25, 2018 energy meters are the basic part to measure the power consumption. The energy data is to be acyclically queried, evaluated and archived with a s71200. This is used in each and every house and industry for calculating the energy consumed by them. Application example 082016 energy data acquisition with. In conclusion, hardware and software were designed to deal with the problem of the current waveform and accurately display real voltage, current, power and energy used in one day.
As their name suggest, electromechanical energy meters are the combination of mechanical and electrical technology. The microchip web site microchip provides online support via our web site at this web. The principle of working and construction of induction type meter is very simple and easy to understand thats why these are widely used in measuring energy in domestic as well as industrial world. In a new fivestory apartment complex in a trendy charlotte neighborhood, residents are becoming smarter about their power use. The three phase meter is constructed by connecting the two single phase meter through the shaft. A density meter, also known as a densimeter, is a device that measures the density.
Research on the digital metering system and verification. This system enables the electricity department to read the meter readings regularly without the person visiting inside each house. Moving system energy meter has a moveable aluminum disk in it which is mounted on a vertical shaft. An electric meter or energy meter is a device that measures the amount of electrical energy supplied to or produced by a residence, business or machine. Principle wem monitors the energy consumption for a single phase supply. With comparing the digital metering systems to traditional metering system, the application structure and characteristics of digital metering system is discussed, the traceability model of the digital.
But these are now being gradually replaced by electronic digital energy meters. It is often incased in glass and has a disk that rotates that. One important advantage of eem is that in non linear loads, its metering is highly accurate and electronic measurement is more robust than that of the conventional mechanical meters. Induction type energy meter used invariably to measure the energy consumed in any a. It is used everywhere, no matter how big or small consumption it is. The new smart meters installed at the complex in the plaza midwood area will enable residents to see how much power they use and when they use it, so they have more. The most common type is more properly known as a kilowatthour meter or a joule meter. Meter is installed all electricity units are charged at the same rate 24 hours a day. Accurate energy measurement even in case of phase reversal andor the load is earthed. Ii electronic voltmeters and ammeters alessandro ferrero, halit eren encyclopedia of life support systems eolss figure 3. This application report has the complete metrology source code. Pdf a single phase microcontroller based energy meter.
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. 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. Jun 24, 2016 the working of venturimeter is based on the principle of bernoullis equation. It involve four steps in its working driving force moving system breaking system registering system 7. The electricity meter measures basic electric network parameters such as rms values of voltages and currents, powers, energy, power factor and net frequency. Electromechanical energy meters engineer experiences. Idea is to design and implement a smart prepaid energy meter prototype having wireless.
This will be converted into corresponding measurements in the display section. They are typically calibrated in billing units, the most common one being the kilowatt. Digital multimeter working principle electrical a2z. 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. In the release condition, pulse output potential is equal to 0. 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. When the voltage of 120% of rated voltage is applied with no current flowing in the circuit, the test output of the meter shall not produce more than one pulsecount.
Parkshot house, 5 kew road, richmond, tw9 2pr, united kingdom. Whats the difference between an energy meter and a. Energy meter working principle and construction electronic. A simple 3 phase disk type energy meter is present in the diagram below. Current rating for 3 phase disk type energy meter is normally up to 100 amps. Aug, 2006 an electric meter or energy meter is a device that measures the amount of electrical energy supplied to a residence or business. 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. It has a rotating aluminium wheel called ferriwheel and many toothed wheels. Mar 28, 2017 induction type instruments are used for a. The dial of the disk meter shows only kwh usage since the time of energy meter installation. It consumes a small amount of power, typically around 2 watts. With the energy meter the energy data of a consumer is to be measured.
Venturimeter principle, construction and working with diagram. Design and implementation of wireless energy meter system. Jun 30, 2018 working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation and measurement for electrical, electronics, extc. Finally, the principle of the software is the paced loop. So energy meters measure the rapid voltage and currents, calculate their product and give instantaneous power. The basic unit of power is watts and it is measured by using a watt meter. There are several adc available in the market, but we.