Induction type energy meter essentially consists of following components. Its composition and working principle are very different from the traditional induction meter. The working principle of an electronic energy meter is a device that measures the electronic energy consumed usually in kwh. One carries a voltage coil so its flux is proportional to. This is the diffrence between digital and static energy meter and we may better know that due to this different if minor load is supplied through the meter. A measuring system with three multipliers is required for 4wire threephase systems of unbalanced load with neutral conductor n. Electrical energy meters principles and applications. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation and measurement for electrical. The torque of both the elements is added mechanically, and the total rotation of the shaft is proportional to the three phase energy consumption. Understanding the basic theory of shieldedpole shunt magnet. So, electronic type of three phase energy meter is explained below with its working principle.
A simple capacitive power supply for the msp430 energy meter. Mechanism of counting and displaying the amount of energy transferred. The intelligent electronic meter is mainly composed of electronic components, its working principle. An instrument that is used to measure either quantity of electricity or energy. Single phase energy meter on sales quality single phase. When the stator of a single phase motor is fed with single phase supply, it produces alternating flux in the stator winding.
Jul 25, 2018 watthour meter is in fact a measuring device which can evaluate and records the electrical power passing through a circuit in a certain time. 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. Pdf a single phase microcontroller based energy meter. Energy meters are the basic part to measure the power consumption. 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. Multifunctional smart meter is a hightech product developed in recent years on the basis of electronic meter. Single phase induction type energy meters electrical. A simple capacitive power supply for the msp430 energy meter appropriate values of resistor r22 and capacitor c49 are chosen based on the required output current drive of the. Different phase configurations use additional voltage and current coils. Watthour meter is in fact a measuring device which can evaluate and records the electrical power passing through a circuit in a certain time. It is used in domestic and industrial ac circuit for measuring the power consumption. In all induction meters, we have two fluxes which are produced by two different alternating currents on a metallic disc. The working of single phase induction type energy meters are based on.
The working of single phase induction type energy meters are based on two main fundamentals. 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 working principle of the electrodynamometer wattmeter is very simple and easy. About 79% of these are energy meters, 2% are power meters. The reverse energy indication will disappear once the reverse energy event is removed. Manufacturer of three phase electronic energy meter. In addition to measuring energy used, electronic meters.
The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Prepaymentprepaid energy meter introduction and working. The measurement of energy is accomplished by means of a voltagefrequency converter connected downstream from the power meter. China rs485 single phase electric meter measuring instruments. Electronic meters display the energy used on an lcd or led display, and some can also transmit readings to remote places. Induction type energy meter used invariably to measure the energy consumed in any a.
Single phase energy meter all you need to know toppr. This electronic meter does not possess any rotating parts, and the. Basic electronic meters are not just more costeffective than mechanical meters, but offer further benefits. Mechanism of counting and displaying the amount of energy. Overview of single phase induction type energy meter. When reverse energy exists, and the current power exceeds the power threshold, then this. It comprises a rotating aluminum disc placed on a spindle between two. When connected to loads, they consume less power and start measuring instantaneous. Their working depends on the theory that the current carrying conductor placed in a magnetic field experiences a mechanical force. Energy meter works on the same principle as the induction motor. About 45% of these are testing equipment, 0% are other test instruments. Arrangement of counting and displaying the amount of energy consumed. There are four main parts of the operating mechanism of single phase induction type. It can widely used in city, country or school and any enterprise.
Mar 27, 2016 there are basically 3 types of energy meters. An electronic energy meter is the measuring device of the energy that consumed in kwh. The alternating current flowing through stator winding causes induced current in the. A wide variety of single phase energy meter options are available to you, such as phase, display type. The working principle of ampere hour mercury motor energy meter is that the. Pel change your life energy meter modern infrastructure. On a singlephase ac supply, the electromechanical induction meter.
One kilowatthour is the amount of electric energy which required to provide an amount of 1,000 watts of power fin. The simplest such instrument is single phase induction type energy meter. Single phase electronic meter 9 18 reverse energy is detected, the symbol will be shown on lcd. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures.
Electric utilities use electric meters installed at customers premises for billing purposes. There are different types of energy meters such as prepaid energy meters, induction type energy meters, analog or digital electric energy meters, three phase or single phase energy meters, electromechanical energy meters, microcontroller based wireless energy meters, smart energy meters and so on. If one uses one kilowatt in onehour duration, one unit of energy gets consumed. A wide variety of calibration of single phase energy meter options are available to you, such as usage, power. The individual pulses are then summated through the use of an electromechanical meter, and are made available at a pulse output as well. Below are the the connections diagrams for installation of a single phase 3 phase, 4 wire kwh meter digital or analog energy meter from the supply to the main distribution board in home. We do not provide any control spring and pointer in an energy meter. Types of energy meters and their working principles. The most common unit of measurement on the electricity meter is the kilowatt.
Electronic meters need for prepaid energy meter system. Single phase induction type energy meter working the control of speed is brought about by a permanent magnet called the brake magnet. Sourcing the right ansi energy meter supplier can be timeconsuming and difficult. This device is available in a purely electronic form too which is known as digital wattmeter. 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 the industrial world. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. Single phase induction meters are very popular for domestic and industrial use because of its wide application as energy meter. By implementing the watthour meter, we can know how much amount of electrical energy is used by a consumer or a residence or an electrically powered.
The principle of working and construction of induction type meter is very simple and easy to understand thats why these are widely used in. Single phase electromechanical induction energy meter it is a wellknown and most common type of ageold energy meter. The dynamometer wattmeter works on the motor principle. The working principle of multifunctional smart meter. The basic unit of power is watts and it is measured by using a watt meter. Constructionally an induction type single phase watt hour meter has many similarities to an induction type wattmeter. The register is a series of dials which record the amount of energy used. Implementation of a singlephase electronic watthour meter. Moreover, the working principle of a watthour meter is more or less similar to that of an induction type wattmeter. On a singlephase ac supply, the electromechanical induction meter operates through electromagnetic induction by counting the revolutions of a nonmagnetic, but electrically conductive, metal disc which. Sep, 2011 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. Construction and working of single phase energy meter.
Chapter in subject electronic instrumentation and measurement. Mar 28, 2017 the function of recording or registering mechanism is to record continuously a number on the dial which is proportional to the revolutions made by the moving system. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. Induction type watt hour meter or energy meter about circuit. This timely information coupled with analysis, can help both utility providers and customers better control the use and production of electric energy consumption. The three phase energy meter has two discs mounted on the common shaft. By implementing the watthour meter, we can know how much amount of electrical energy. Single phase electronic meter measuring instruments kwh meter single phase electronic meter is a full digital intelligent metering with special clip which function for energy management and also can prevent from electricity stolen. Working of single phase induction type energy meter the basic working of single phase induction type energy meter is only focused on two mechanisms. The magnet is placed opposite to the electromagnet used. Working of single phase induction type energy meter. How to make free energy generator 220v with 3kw alternator and 1 hp motor recycle free electricity duration.
Single phase meter wiring diagram energy meter single. An energy meter is used to measure the energy consumed in the kilowatt hours. Induction type energy meter used invariably to measure the energy. Implementation of a singlephase electronic watthour. Mar 02, 2017 how to make free energy generator 220v with 3kw alternator and 1 hp motor recycle free electricity duration. Working principle and construction of energy meter video lecture of. The energy is the total power consumed and utilised by the load at a particular interval of time.
An electric meter or energy meter is an essential device that goes with. Aug 10, 2010 the type of meter described above is used on a single phase ac supply. An electronic energy meter eem functionally outperforms the traditional ferraris wheel meter. What is the solution for the drawbacks of commonly used energy meters. The reading on the 3ph meter would equal the sum of the three separate readings on the singlephase meters. Single phase energy meter working of single phase induction. Working principle of watt hour meter constructionally an induction type single phase watt hour meter has many similarities to an induction type wattmeter. As shown in the above figure, the wattmeter has two sets of coils. The construction of the single phase energy meter is shown in the figure below. Figure 3 shows a simple capacitor power supply for a single output voltage of 3. Single phase electricity explained wiring diagram energy meter duration.
The power companies benefits from eem in three significant ways. What is working principle of electronic energy meter answers. It is used everywhere, no matter how big or small consumption it is. Thus we need an integrating instrument which can measure and record the energy consumed by the load under varying load condition.
Theory and operation phasor diagram of single phase induction type energy meter. The basic working of single phase induction type energy meter is only focused on two mechanisms. What is the differance between digital energy meter. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic. So, electronic type of threephase energy meter is explained below with its working principle. In principle, a sealed time switch can also be used, but is considered more. The intelligent electronic meter is mainly composed of electronic components, its working principle is through the realtime sampling of user power supply voltage and current, and then use special electric energy meter ic processing of sampled voltage. Here we discuss the construction and working principle of induction type energy meter.
This paper presents a single phase electrical energy meter based on a microcontroller from microchip technology inc. An aluminium disc is placed inside a magnetic core with two limbs. 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. This is used in each and every house and industry for calculating the energy consumed by them. This article is only focused about its constructional features and its working. The three phase meter is constructed by connecting the two single phase meter. Induction meter includes types such as induction voltmeters, induction ammeters and induction watthour meters. 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. Single phase induction type energy meters electrical concepts.
Types of energy meters and their working principles elprocus. Find the china ansi energy meter, find the best ansi energy meter made in china, china ansi energy meter shopping guide. A single phase meter is used in alternating current systems. Single phase energy meter single phase induction type energy meter is also popularly known as watthour meter. Jun 08, 2016 thus we need an integrating instrument which can measure and record the energy consumed by the load under varying load condition. A 3 phase energy meter has same elements as in case of a single phase energy meter. The principle of single phase prepaid electric energy. Apr 02, 2018 single phase meter wiring diagram energy meter. It is often incased in glass and has a disk that rotates. This meter is able to perform current, voltage and power measurements in three phase supply.
Energy meter working principle and construction electronic. A singlephase meter is used in alternating current systems. Electronic single phase watthour meter adopts largescale ic, the latest micro electronic technologies and smt techniques. Pel amr enabled meters are based on rf and gsmgprs technologies. China ansi energy meter, china ansi energy meter shopping. Induction meter includes types such as induction voltmeters. 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. Particularly in this article, we are going to study about the working principles of single phase electromechanical induction type energy meter and also about three phase electronic energy meter from the explanation of two basic energy meters as described below.
It is often incased in glass and has a disk that rotates that. This includes single phase, three phase and ltht meters. The aluminium disc is supported by a spindle which has a worm gear which drives the register. Energy meter working principle construction types of energy. There are two common prestorage methods for single phase prepaid energy meter, one is code type, the other is write card type the code principle is.
This meter is able to perform current, voltage and power measurements in three phase supply systems. What are the advantages and disadvantages of usual energy meters. The meter which is used for measuring the energy utilises by the electric load. What is the working principle of energy meters measure. Single phase induction type energy meter construction, working principle,operation,creeping,torque equation the measurement of energy is the same process as measurement of power except that the instrument not merely indicates the power or rate of supply of energy but must take into account also the length of time for which the rate of energy is. Microcontroller based wireless energy meter working.
Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. So energy meters measure the rapid voltage and curren. The power threshold of reverse energy is 5% of unib. This mechanical force deflects the pointer which is mounted on the calibrated scale.
The neutral sides of the single phase meters do not need to be connected to the. Jul 25, 2018 energy meters are the basic part to measure the power consumption. Study of single phase induction type energy meter or watt. Nov 29, 2014 the traditional form of wattmeter is called as dynamometer wattmeter. These induction motor energy meters are designed for single phase electric.
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