3 phase induction type energy meter pdf files

It is widely used when compared to the three phase motor for the industrial, commercial and domestic purposes. Electronic single phase watthour meter adopts largescale ic, the latest microelectronic technologies and smt techniques. Product overview important information on using the mcp3909 3phase energy meter reference design including a getting started. This video explains the basics of installing the eg3000 in a three phase distribution panel, defines each incoming line. Induction generators operate by mechanically turning their rotors faster than synchronous speed. In the case of three phase ac alternating current operation, the most widely used motor is a 3 phase induction motor, as this type of motor does not require an additional starting device. Induction type energy meter essentially consists of following components. Type of display like analog or digital electric meter. This article is only focused about its constructional features and its working. The basic working of single phase induction type energy meter is only focused on two mechanisms. How to design the 3 phase delta connection energy meter all. 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.

Ade7752b 3phase, 3wire, and 4wire energy metering ic. An induction generator or asynchronous generator is a type of alternating current ac electrical generator that uses the principles of induction motors to produce electric power. Threephase motors have fewer components that may malfunction than other motor types. Ade7752b 3phase, 3wire, and 4wire energy metering ic with. The meter has been granted eec model approval certificate by. With the exclusion of three files, the same source files are shared among all the meters. The msp430f47197 offers 7 sigmadelta converters that allow measurement of 3 phases with antitamper.

Single phase induction type energy meters electrical. Polyphase systems have three or more energized electrical conductors carrying alternating currents with a defined phase angle between the voltage waves in each conductor. It comprises a rotating aluminum disc placed on a spindle between two electromagnets. Hi all, i am planning to design the energy meter for 3 phase delta connection to monitor the voltage and current of delta induction motor runs at 415v. 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. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. C to the pressure coil circuit by means of phase shifting transformer. Software package also includes a dummy application for. In a 3 phase ac induction motor, there are three stator windings, each usually in two halves, with the rotor winding shortcircuited by end rings.

The third excluded file is used to configure the lcd. Driving system moving system breaking system registering system 2. Mechanism of rotation of an aluminium disc which is made to rotate at a speed proportional to the power. This type of measuring circuit offers cost advantages because it allows for the measurement of power and energy with only two current transformers at phase conduc. Electromechanical energy meters have been the standard for metering the electricity since billing began. Pl explain 3 phase energy meter working principle and how can reduce electric cost and reduce the current flow in mains circuit,is it will help to reduce my electricity bill, and reducing produce heat, loss of electricity. Servicing usually requires that the motor be sent to a motor repair shop for rewinding. The electric energy generated purchased by consumers for different needs. A 3phase energy meter has same elements as in case of a singlephase energy meter. What is the solution for the drawbacks of commonly used energy meters.

The operation of induction type energy meter depends on the passage of alternating current through two suitably located coils producing rotating magnetic field which interacts with a metallic disc suspended near to the coils and cause the disc to rotate. This device can be implemented as a single chip monophase energy meter or as a peripheral measurement in a microcontroller based monophase or 3 phase energy meter. The meter is equipped with several communication port, it has a remote interface, which is using for ami system building. Below is the connection of 3 phase three phase or poly phase 3 phase,4 wire kwh meter digital or analog energy meter from the supply to the main distribution board. Evm430f47197 threephase energy metering evm msp430f47197. The principle of working and construction of induction type meter is very simple. One single phase wattmeter plus miscellaneous apparatus as needed.

Energy management threephase energy meter with output. Single phase induction motors the single phase induction motor comes with the different starting arrangements. This article is really good kurrey consultancy services november 25, 2018 at 2. Different types of phase sequence testers are available in todays. This document describes how to use the mcp3909 3phase energy meter reference design as a development tool to emulate and debug firmware on a target board. But these are now being gradually replaced by electronic digital energy meters.

Three phase onerate electric meters are meant for measuring active or reactive electric energy consumption on 3 or 4 wire three phase networks. Single phase energy meter working of single phase induction. An electrical motor is an electromechanical device which converts electrical energy into mechanical energy. Single phase induction type energy meter is also popularly known as watthour meter. Pl explain 3 phase energy meter working principle and how can reduce electric cost 1 answers i hope the energy meter will consider only the amount of current flow in case if i improve p. Single phase energy meter theory pdf download mastercard. Thus we need an integrating instrument which can measure and record the energy consumed by the load under varying load condition. Type of metering point like grid, secondary transmission, primary and local distribution. Accuenergy acuvim al series of power energy panel meters. Three phase energy meter three phase modular smart energy meter. As the current passes through the coils on opposite.

Single phase energy meter theory pdf download mastercard downlood triber vodafon author. How to design the 3 phase delta connection energy meter. The energy meters are classified into two basic categories, such as. Types of displays analog or digital electric meter. Squirrel cage wound rotor with slip rings the rotating magnetic field. Procedure for calibration and testing of single phase energy meter. Dsad331dtad341me2 smart type substation special energy meter dssd331dtsd3419d three phase high accuracy gateway meter dssd331dtsd3419a9b9c three phase fundamental waveharmonic wave gateway mete. What are the advantages and disadvantages of usual energy meters. Use of instrument transformers for extension of instrument range. As a rule, delta voltage is used for the calculation of values in threephase systems. Study the construction and working of single phase energy. The simplest such instrument is single phase induction type energy meter.

Pl explain 3 phase energy meter working principle and how can. Single phase energy meter single phase induction type energy meter is also popularly known as watthour meter. Onboard lcd display shows most common electrical and power metering parameters. This is used in each and every house and industry for calculating the energy consumed by them. What is the working principle of three phase energy meter. Jan 16, 2018 in this video, i also explain the 3 phase distribution board diagram in which i explain the three phase kwh meter connection and installation, 4 pole mccb wiring, double pole mcb, double pole rcd. Mechanism of counting and displaying the amount of energy transferred.

A capable but lowcost singlethree phase meter built for facilities managers to quickly and affordably monitor onsite electrical systems or devices. A wide variety of three phase analog energy meter options are available to you, such as single phase, three phase. It is a wellknown and most common type of ageold energy meter. Single phase induction type energy meters electrical concepts. Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. Energy meter code library for 1phase to 3phase using. This evm430f47197 is a three phase electricity meter evaluation board based on the msp430f47197, metrology systemonchip soc. Therefore, this type of meter is also called an integrating meter. The stpm01 is designed for effective measurement of active, reactive and apparent energy in a power line system using rogowski coil, current transformer and shunt sensors. Characteristics z liquid crystal displaylcd z protection class ii z ip 54 z optical communication z rs485 communication z pluggable remote communication module z with 5a disconnector. Implementation of a 3phase rogowski coil based watt hour. Us583950a us583950da us583950a us 583950 a us583950 a us 583950a us 583950d a us583950d a us 583950da us 583950 a us583950 a us 583950a authority us united states.

Generally, there are two types of the induction motors known as single phase and three phase induction motors. The three phase energy meter is used for measuring the large power consumption. Single phase electromechanical induction energy meter. M50s01 three phase dc meter with ami capabilities m52s01 three phase ct meter with full ami capabilities aistan m53z three phase dc type ultra smart modular energy meter aistan m54z three phase ct, ctvt operated ultra smart modular energy meter aistan m56z 3 phase ultra smart, modular energy meter dc type aistan m57z 3 phase. Phasor diagram of single phase induction type energy meter. This type of smart meter is designed for lv or hv three phase users. A polyphase system is a means of distributing alternatingcurrent electrical power where the power transfer is constant during each electrical cycle. Explain basic principle and development of torque expressions for energy meter. Induction type energy meter ii electrical technology ii unit 3 duration. 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.

Construction driving system, moving system, braking syatem, and registering system 4. The three phase meter is constructed by connecting the two single phase meter through the shaft. Energy meters are classified into two types by taking the following factors into considerations. Threephase installation tutorial for the egauge eg3000 energy meter. The rogowski coil current sense library implements an efficient software integration of the rogowski output, enabling this to be a single chip solution for 3 phase emetering. Record all nameplate information for the induction motor. Mcp3909 3phase energy meter reference design using. The total energy is the sum of the reading of both the elements. Electrical energy developed as work or dissipated as heat over an interval time t. Induction motor seminar ppt, pdf report study mafia. These types of motors are known as selfstarting induction. The meter and push fit type meter box shall be supplied in suitable packing so as to withstand transit shocks during road transport. A range of products designed to record energy consumption in order to ensure machines are energyefficient.

Working of single phase induction type energy meter the basic working of single phase induction type energy meter is only focused on two mechanisms. Energy meter or watt hour meter is classified in accordance with several factors such as. Its main functions include energy measurement, data display, communication, prepayment, contactor control, keypad input and inquiry, antitampering, etc. The meters should be suitable for three phase four wire system, capable to record and display monthly average p.

Understanding the basic theory of shieldedpole shunt magnet. An energy meter is used to measure the energy consumed in the kilowatt hours. There are four main parts of the operating mechanism of single phase induction type. Operating principle of single phase induction type energy meter. Overview of single phase induction type energy meter. Below is the most common inner connection of of 3 phase energy meter.

Jul, 2016 operating principle of single phase induction type energy meter. When the energy meter is connected in the circuit, the current coil. Give the connections as per the circuit diagram above. Calibration and testing of singlephase energy meter.

Induction type measuring instrument energy meter 1. Energy is an integrating type of instrument used for measurement of energy in domestic and industrial ac circuits. W p t delta voltage neutralpoint displacement voltage. Driving system consists of two electromagnets on which pressure coil and current coils are wounded, as shown above in the diagram.

Feb 15, 2014 induction type measuring instrument energy meter 1. Their construction and operation comply with the technical requirements provided by iec 6205311, en 504702, din 43857 and iec 60145 standards. Compatible with 3 phase, 3 wire delta and 3 phase, 4wire wye configurations supplies average active power on the frequency outputs f1 and f2 high frequency output cf is intended for calibration and supplies instantaneous active power logic output revp indicates a potential miswiring or negative power on the sum of all phases. When 115% of rated voltage is applied with no current flowing in current circuit, the. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. You should also make a dc measurement of stator winding linetoline resistance.

Energy is total power delivered or consumed over a time interval, energy power x time. The operation of induction type energy meter depends on the passage of alternating current through two suitably located coils producing rotating magnetic field. However, 3wire threephase systems are commonly found in industrial applications, for which aron circuits are used. And reduce the current flow in mains circuit,is it will help to reduce my electricity bill, and reducing produce heat, loss of electricity. Energy meter code library for 1phase to 3phase using msp430. The 160segment lcd displays energy, voltage, current and more for all 3 phases. 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. Hxe34kp three phase four wire prepaid keypad meter is designed for the purpose of prepayment.

And also the correct operation of measuring instruments like 3 phase energy meter and automatic control of devices also depend on the phase sequence. Jul 25, 2018 single phase induction type energy meter consists of four important systems which are written as follows. When the energy meter is connected in the circuit, the current coil carries the load current and the pressure coil carries the current proportional to the supply voltage. Electrical energy meters principles and applications. However the meter should withstand the maximum system voltage. Energy meter circuit detailed project with source code.