Talking energy meter the purpose of this project is to build a kwh kilo watt hour meter that can alert the users with voice messages. Here we discuss the construction and working principle of induction type energy meter. To be able to talk more about these capabilities of energy meter, we first need to mention the types of energy. Electronic energy meter is based on digital micro technology dmt and uses no moving parts. Networking of meters through dedicated wires, power. Before working on the current transformers disconnect the voltage paths of the energy meters. 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. Below are the the connections diagrams for installation of a singlephase 3phase, 4 wire kwh meter digital or analog energy meter from the supply to the main distribution board in home. The biggest superior features of energy meters from energy analyzers are. As disk type energy meters are obsolete there is no need to discuss them. An energy meter or kwh meter is a device that measures the amount of electrical energy supplied to or produced by a residence, business or machine. If the manual meter reading and bill data entry process can be automated then it would.
Other types of meters communicate directly with the utility home office, without any meter readers at all. In every residence, malls, industry, everywhere energy meters are used to measure the electrical energy consumed. The conventional mechanical energy meter is based on the phenomenon of magnetic induction. 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 is used in domestic and industrial ac circuit for measuring the power consumption.
There are many types of energy meters having different working principle. To enable a registration process for future upgrades of the energy meter, the documentation package is delivered with an rid and pic label. This is an example of a dial type kwh meter that you may see outside your home. Static and dynamic networking of smart meters based on the. In this project we make a smart electricity energy meter using arduino and esp8266 wifi module which can not only sends you a smsemail of your electricity bill but also you can monitor the energy uses anytime and from anywhere in the world.
Electricity is a clean, convenient way to deliver energy. Design and implementation of wireless energy meter system. The energy is the total power consumed and utilised by the load at a particular interval of time. These individuals believe electronic metering solutions can provide the residential energy market with accuracy, flexibility and networking. Bidirectional metering is available to customers who install renewable fuel generators such as solar, wind, hydro or biomass sources and operate the generator in parallel with their electric companys electrical system. Traditional metering methods for retrieving the energy data of consumers is not convenient. The primary controller collects information from energy meter as well as from the smart card. The accurate collection of smart meter information not only affects the normal work of the power user electric energy data acquisition system, but.
The meter is provided with a field to which entries can be made for this purpose ct or vt factor. Automatic tariff calculation with wireless energy meter. But these are now being gradually replaced by electronic digital energy meters. Energy meters are the basic part to measure the power consumption.
If a meter is used in combination with a current transformer. One can easily access the meter working through web page that we designed. Utilities install these instruments at every place like homes, industries, organizations to charge the electricity consumption by loads such as lights, fans and other appliances. 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. 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.
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. When the energy meter is connected in circuit, the current coil carries the load current and pressure coil carries the current proportional to the supply voltage. Electric utilities use electric meters installed at customers premises for billing and monitoring purposes. 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. Page 4 energy storage power level is low and you should soon charge the energy meter. The aim of this project is to design a sample meter can accurately display real voltage. 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. Smart grids infrastructure development protocols emerging for control and communication of various.
Jul 25, 2018 energy meter testing july 25, 2018 february 24, 2012 by electrical4u we cannot think of life without electricity and when there is electricity consumption there is a need to measure its consumption. They are typically calibrated in billing units, the most common one being the kilowatt hour kwh. Based on the flow of current, the ferriwheel rotates which makes rotation of other wheels. Sem is an electric device which has energy meter chip that records the consumption of electric energy, wireless system for communicating with data like gsm network and devices for the purpose of. Power and energy meters software downloads the links below will lead to software and driver downloads for our power and energy meters software downloads. The circuit shown in figure1 is the circuit of energy metering.
Designing smart meters for the smart grid meera balakrishnan. Working of single phase induction type energy meter. What are the advantages and disadvantages of usual energy meters. Pdf an open standard protocol for networking of energy meters. An open standard protocol for networking of energy meters. It is used everywhere, no matter how big or small consumption it is. Read from lesson 1 of the work, energy and power chapter at the physics classroom. The wireless energy meter monitoring system aims to minimize these difficulties by providing automatic energy. The energy meter measures the flow of energy out of and into the utility grid. Mar 28, 2017 here, in this article lets just stick with the basics of energy meters. International journal of applied engineering research issn 09734562 volume, number 6 2018 pp. Previously we have built a energy meter circuit which sends you sms about the bill using gsm module.
The working principle of an electronic energy meter is a device that measures the electronic energy consumed usually in kwh. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. It has a rotating aluminium wheel called ferriwheel and many toothed wheels. The use of gsm module provides a feature of notification through sms. Kilovolt amperereactivehour kvarh is the unit for reactive nonworking energy. This electronic meter does not possess any rotating parts, and the. Emem1200 series vaf, pf power and energy meter,em6400ng,em6433 energy kwh meter,em6436 load monitor,em6438em 6436 dual source energy meter,em6459 vaf, pf meters. Electromechanical energy meters have been the standard for metering the electricity since billing began. Type labels are, however, difficult to read when installed. Those consumers which consume large energy needs we cannot think of life without electricity and when there is electricity consumption there is. In order to accurately measure the electronic energy used for a electronic energy meter, suitable hardware and software have to be designed. The commercial unit of electrical energy is kilowatt hour kwh. Electronic energy meter industrial applications vishay.
Energy meter reading is a monotonous and an expensive task. One single phase energy meter, one single phase load, stop watch and connecting wires. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. When measurements are performed with upstream transformers, the displayed energy value must be multiplied by the transformation ratios. Discover schneider electric range of products in conzerv energy meters. 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 energy meters by the millions analog devices. Alternatively, the rid and pic are printed on the type label of the energymeter. Electronic meters need for prepaid energy meter system. A method of determining an electric energy meter maximum uncertainty. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Study of single phase induction type energy meter or watt. If the number of joules resets to 0 j and output voltage goes to zero, then the energy meter has been overloaded and must be recharged. For any questions regarding our software, please contact technical support.
This paper presents a single phase electrical energy meter based on a microcontroller from microchip technology inc. Implementation of a singlephase electronic watthour meter. Smart card, which is the switch, gives information about the limitation of units. An electric meter or energy meter is a device that measures the amount of electrical energy. Electrical energy meters principles and applications. The software supports calculation of various parameters for singlephaseenergy measurement.
A second terminal block between the current transformer and the meter simplifies service work. Doing work either transfers energy from one object to another or transforms it. Wireless automation in the generation, transmission and distribution of electricity and billing has come of age. Trivector meter is an energy meter which accurately measures all the parameters of supply such as voltage, current, power factor, active load, reactive load, apparent load etc. The nem program uses a bidirectional meter to track the net difference between the amount of electricity produced by your generating system and the amount of electricity you consume from the power grid during each billing period. The energy meter thus determines and adds together or integrates all the instantaneous power values so that total energy used over a period is thus known. An electronic energy meter eem functionally outperforms the traditional ferraris wheel meter. Threephase and singlephase energy meters, highquality pdf. 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 purposes. Manual energy meter emem1200 series vaf, pf power and energy meter vaf, pf power emem1200em1220 series user manual, eav95462, 20140602. The energy storage should be charged before each lesson. Pdf an open standard protocol for networking of energy meters under the simple networkmanagement protocol snmp environment is. Pdf a method of determining an electric energy meter.
Threephase ctpt operated keypad energy meter operation. The existing energy meter reading technology uses manpower which has many disadvantages like errors during calculation, absence of consumer during billing time and extra expenses for the billing process. In this paper, energy meters which is already installed at our houses are not replaced, but a small modification on the already installed meters can change the existing meters into smart meters. An electric meter or energy meter is an essential device that goes with consumption of commercially distributed energy. Overview of single phase induction type energy meter. Jul 25, 2018 energy meters are the basic part to measure the power consumption. 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. Pdf a single phase microcontroller based energy meter. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. Energy meter is an instrument which measures electrical energy.
Xcel energy is dedicated to providing safe, economical, and reliable service to our customers. The measured values of the energy meter are transmitted to the inverter and influence the charging behavior of the battery. Design and implementation of wireless energy meter system for. Energy meter circuit detailed project with source code. The energy meter reading is compared with the smart. An electric meter or energy meter 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 electromechanical meters ac voltage load indicator voltage coil current coil al dial permanent magnet i. Iot based electricity energy meter using esp12 and arduino. Still i will try my best to sort out different types of energy meters in some simple manner.
Prepaid and postpaid energy meter for billing system using. Saving of more than 30% over coventional meters meter records correct energy with same accuracy under reverse current connection led indication for current reversal tampering and phase availability an iso9001. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation. We cannot think of life without electricity and when there is electricity consumption there is a need to measure its consumption. The power companies benefits from eem in three significant ways. The energy meter data may not be used for billing purposes. Energy meter or watthour meter is an electrical instrument that measures the amount of electrical energy used by the consumers. The work done is equal to the change in the kinetic energy. Energy meter working principle and construction electronic. Additionally required material not included in the scope of delivery. 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. Threephase ctpt operated keypad energy meter 10 shenzhen inhemeter co.
The three phase meter is constructed by connecting the two single phase meter through the shaft. What is the solution for the drawbacks of commonly used energy meters. Now the meter reader people goes to each meter and take the meter reading manually to issue the bill which will later be entered in the billing software for billing and payment automation. Mejbaul haque1 et al microcontroller based single phase digital prepaid energy meter for. The dial pointer rotates clockwise and anti clockwise on the dials. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic. Therefore, this type of meter is also called an integrating meter. Mar 27, 2016 there are basically 3 types of energy meters. The mechanical meters for electricity, gas and water are being replaced with new digital meters in much of the industrialized world. Power meter hardware figure 11 below shows the parts of the power meter 750. And arduino uno can only work after we uploaded the designed program into it. To expedite service connections and treat each of our customers equally and fairly, we have developed installation standards for gas and electric services.
The dials are the small circles on the front of the meter, this meter consist of fivedials. The circuit shown in figure1 is the circuit of energy. There are many basic types of energy meters that it is not an easy task to categorize them. Work, energy and power key concept energy is the ability to do work, and may be obtained in many forms. What are the different types, how do they work and what are the health issues. The concept of individual onsite meter testing with current and voltage sources has become increasingly popular. Watt hour meter or energy meter is an instrument which measures amount of electrical energy used by the consumers. Working closely with industry leaders to further develop solutions in this space. Basic working principle of all energy meters are same except disk type energy meter. Meanwhile, the problem of the distorted current waveform from loads need to be considered. In order to test meters, particularly those of the 0.
To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. The following is a basic explanation of how bidirectional metering works. This document is valid for the sma energy meter emeter20 from firmware ver sion 2. To search for the software for your device, please enter the item number here. Working the microcontroller at89s52 acts as the primary controller. Prepaymentprepaid energy meter introduction and working. 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. Pdf automatic energy meter reading using smart energy meter.
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