A single phase microcontroller based energy meter conference paper pdf available in conference record ieee instrumentation and measurement technology conference 2. Mechanism of rotation of an aluminum disc which is. The only analog circuitry used in the ade7752b is in the. Experiments for first year electrical engg lab 201415. Potentiometer calibration of pmmc ammeter and pmmc voltmeter 4.
Working of single phase induction type energy meter. Pdf this paper presents a single phase electrical energy meter based on a. Experiment1 calibration of single phase energy meter aim. But these are now being gradually replaced by electronic digital energy meters. Energy meters are used in all power supply lines to every house in order to measure the power consumed in both dc and ac circuits. To calibrate and test the given single phase energy meter by direct loading. In every residence, malls, industry, everywhere energy meters are used to measure the electrical energy consumed. Single phase electricity meters gas meters energy meters. Single phase induction kilowatt hour meter construction. For this reason they can allow a power flow three time greater then the corresponding singlephase circuit. However the meter should withstand the maximum system voltage. To calibrate the energy meter using direct loading. This article is only focused about its constructional features and.
Ip65 durable waterproof single phase electrical energy meter, residential power monitor quick detail. There is a small display window in the front of the meter which displays the reading of energy consumed with the help of dials. Moving iron ammeters and voltmeters, dynamometer type watt meters, induction type energy meter. Single phase vs three phase electricity meter help. Measure reactive power in 3phase circuit using single wattmeter. Electrical energy meters principles and applications. Single phase 2wire 12 % 1 100% in 01 % 1 10% in 01 2 load curve effect on load curve by varying the voltage. And also for reading the current ct is used which is inductive and current will lag. Single phase energy meter electric current voltage scribd. Pdf a single phase microcontroller based energy meter. A singlephase meter is used in alternating current systems.
To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. I am starting a project for single phase energy meter reading. The single phase electrical energy meter principle block diagram is shown in fig. Electronic single phase watthour meter adopts largescale ic, the latest microelectronic technologies and smt techniques. A singlephase energy meter prototype has been implemented in the lab to. The red wire shows the live or line or phase and the blake shows the neutral wire.
Experiment no 1 power measurement in balanced 3 phase circuits and power factor improvement 1 power in single phase circuits let v vm cos. Single phase digital energy meter all about circuits. Induction type energy meter used invariably to measure the energy consumed in any a. Single phase power measurement instruments are made up of rugged electronic instruments designed specifically for use in the harsh electrical environment common to many utility and industrial applications. Single phase energy meter on sales quality single phase. The commercial unit of electrical energy is kilowatt hour kwh. How electricity reaches our homes from the power station.
Note down the reading of two meters in a given period of time, say 2 minutes. Electromechanical energy meters have been the standard for metering the electricity since billing began. Single phase induction type energy meter is also popularly known as watthour meter. To demonstrate the operation of a single phase watthour meter under different loading conditions. 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. A triple singlephase circuit can be represented in two ways see figures 3 and 4. To make the phase angle between flux produced by shunt magnet and supply voltage about 900, small adjustments in the place of the ring is required. In this video we learn electrical engineering basics by learning single phase meter wiring diagram. The complete set up consists of two energy meters, wattmeter, voltmeter, ammeter, variac. The three phase meter is constructed by connecting the two single phase meter through the shaft. Figure 3 shows a simple capacitor power supply for a single output voltage of 3. The individual pulses are then summated through the use of an electromechanical meter, and are made available at a pulse output as well.
Therefore, this type of meter is also called anintegrating meter. Portable energy meter calibrator available including three phase, single phase meter test equipment. The meter is designed to offer reliable energy measurement in single phase circuit and is highly suitable for metering and remote communication purposes. Principle of generation thermal, hydel and nuclear.
Energy conservation is a primary goal for lawmakers today. 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. Single phase energy meter working of single phase induction. Triple singlephase system built using three separate singlephase systems six conductors figure 4. Measurement of 3 phase reactive power with single phase wattmeter. Calibration of single phase energy meter using phantom loading method with rss meter as standard 2. Single phase induction motor double revolving field theory the threephase induction motor starting torque inversely depends on the slip this implies that a small positive slip 0. Energy is the total power consumed over a time interval. The main objectives of this lab course are i to expose the. Single phase energy meter free download as word doc. Calibration and testing of single phase energy meter. Singlephase induction kilowatt hour meter singlephase induction kilowatt hour meter construction bipul raman overview of single phase induction type energy meter single phase induction type energy meter is also popularly known as watthour meter. Single phase electricity is connected at 230 or 240 volts via 2 wires, active and neutral, and is found in most domestic settings.
Energy meter circuit detailed project with source code. Ti designs isolated communications between metrology afe. Energy meter is an instrument which measures electrical energy. There is a copper shading ring at the central limb of the shunt magnet. Grid meter, and used as control input for an ess system 1. Experiments for first year electrical engg lab 201415 dept of electrical engineering, shri ramdeobaba college of engineering and management, nagpur 4400 india page 4 on lhs by hand with pencil experiment no. 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. The meter complies with national and international metering standards. Dc pmmc instruments, extension of range by shunts and multipliers. It is used in domestic and industrial ac circuit for measuring the power consumption. These mid meters are all compact and lightweight and rated as class 1 and 2, so you can rely on electricity meter accuracy. Electrical measurements lab manual pdf em lab manual pdf. Here we are going to discuss the singlephase induction type in detail. Measurement of energy using 1phase energy meter connection.
The measurement of energy is accomplished by means of a voltagefrequency converter connected downstream from the power meter. The basic working of single phase induction type energy meter is only focused on two mechanisms. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Can you guys suggest some microcontroller for this project. What is the solution for the drawbacks of commonly used energy meters. Induction type energy meter essentially consists of following components. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. Procedure for calibration and testing of singlephase energy meter. Single phase electricity explained wiring diagram energy. This document is the manual for the single phase max 100 a energy meter.
Implementation of a singlephase electronic watthour. The following experiments are required to be conducted as compulsory experiments. Calibration and testing of single phase energy meter aim. This article focusses only on its constructional features and its working. One single phase energy meter, one single phase load, stop watch and connecting wires. What are the advantages and disadvantages of usual energy meters. We cannot think of life without electricity and when there is electricity consumption there is a need to measure its consumption. The ade7752b specifications surpass the accuracy requirements as quoted in the iec6205321 standard. C to the pressure coil circuit by means of phase shifting transformer. These graphics below shows the above idea in a very simple way. A 3phase energy meter can interface with different. The energy is the total power consumed and utilised by the load at a particular interval of time. Give the connections as per the circuit diagram above.
Power and energy measurements encyclopedia of life. It comes with suitable display with a range of communication options for local and remote monitoring. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. Manufacturer of energy meter testing equipment single phase high precision reference meter, three phase energy meter field calibrator, ratio and polarity test set and single phase portable energy meter testing equipment offered by akshyan power solutions private limited, delhi. To determine regulation and efficiency of a single phase transformer by open circuit o.
These power measurement instruments are ideally suited to applications where reliable, precise measurements are required, but where. No name type range quantity 1 single phase energy meter induction 1500revkwh 1 2 wattmeter upf 300v5a 1. The electricity meters in our single phase meter range are all mid approved meters. Pic18f87j72 singlephase energy meter calibration users guide 2011 microchip technology inc. I am currently studying msp430afe2xx from texas instrument, any pointers for this ic. Study of single phase induction type energy meter or watt.
Calibration and testing of singlephase energy meter. Pic18f87j72 singlephase energy meter calibration users. Ade7752b 3phase, 3wire, and 4wire energy metering ic. The main objectives of this lab course are i to expose the students. An adjustable copper shading rings are provided on the central limb of the shunt magnet to make the phase angle displacement between magnetic field set up by shunt magnet and supply voltage is approximately 90 degree the copper shading bands are also called the power factor compensator or compensating loop. Overview of single phase induction type energy meter. The power consumed over a period of time can be measured by a motor meter or energy meter. Calibration of single phase energy meter using phantom loading method with rss meter as standard. There are several types of energy meters single phase induction type energy meter are very commonly used to measure electrical energy consumed in domestic and commercial installation. Singlephase electric meter with isolated energy measurement ti designs design features ti designs provide the foundation that you need simplified meter calibration by using usb including methodology, testing and design files to connection quickly evaluate and customize the system.
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