The total energy is the sum of the reading of both the elements. Procedure for calibration and testing of single phase energy meter. Meter sockets a meter socket is the base portion of a socket type meter. Single phase electricity meters gas meters energy meters. Todays smart meters can connect to a widearea network wan and the cloud through a data concentrator and a home area network together with inhome devices in addition to gas and water. This manual discusses features of the iem2250 single phase multifunctional energy meter and provides installation and configuration instructions.
User manual single phase energy meter hxe12kp hexing electrical co. Direct connection, either using the rs485 to usb interface with 1. Figure 3 shows a simple capacitor power supply for a single output voltage of 3. 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.
Figure 3 illustrates the circuit used to generate the dc bias. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. An important notice at the end of this ti reference design addresses authorized use, intellectual property. It measures line voltage and current and calculates active, reactive, and apparent energy, as well as instantaneous rms voltage and current.
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. Jul 25, 2018 there is a small display window in the front of the meter which displays the reading of energy consumed with the help of dials. The device incorporates three adcs with a high accuracy energy measurement core. Single phase energy meter theory pdf download mastercard downlood triber vodafon author. Power consumption is shown by a bar flashing at a rate of 100 times per kwh. The single phase motor stator has a laminated iron core with two windings arranged perpendicularly. Implementation of a singlephase electronic watthour. On the ccgx go to the grid meter in the wired ac sensor settings. The mcp3909pic18f85j90 single phase energy meter reference design is a fully functional single phase meter. Specialty metering equipment will be subject to actual cost. Overview ddsd101kt1 single phase electric multifunction energy meter is a new model of energy meter provided with prepayment function. It uses ad7755, a singlephase energy measurement ic to acquire and process the input voltage and current parameters. The three phase energy meter is used for measuring the large power consumption.
Single phase electricity is connected at 230 or 240 volts via 2 wires, active and neutral, and is found in most domestic settings. Singlephase electric meter with isolated energy measurement. This manual assumes you have an understanding of single phase multifunctional energy meter and are familiar with the equipment and power system in which your meter is installed. Mcp3909 and pic18fj90 single phase energy meter reference design. These mid meters are all compact and lightweight and rated as class 1 and 2, so you can rely on electricity meter accuracy. 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. Give the connections as per the circuit diagram above. Poly and single phase energy meter socs pin description silergy corp 8 configurable as gpio port p1. Impulse port of each meter position, external polarity can be set randomly, able to adapt kwh meter of impulse cascade and commonanode. Pic18f87j72 singlephase energy meter calibration users. 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. Threephase and singlephase energy meters, highquality pdf. A singlephase meter is used in alternating current systems. Contact the seller opens in a new window or tab and request post to your location.
However the meter should withstand the maximum system voltage. Singlephase energy meter with 80 a maximum current based. Operating principle of single phase induction type energy meter. Single phase energy meter hxe12kp hexing electrical co. Single phase, multifunction metering ic with neutral. Electric utilities use electric meters installed at customers premises for billing and monitoring purposes. Calibration and testing of singlephase energy meter. The threewattmeter method can also be used in the absence of a neutral conductor if an artificial neutral is available.
Grid meter, and used as control input for an ess system 1. Dc voltage will be rectified from a three phase power supply. Single phase vs three phase electricity meter help non. Drm121, mqxenabled mcf51em256 singlephase electricity meter. Singlephase electricity meters are designed essentially to measure energy consumption and its quality factor as well as provide means to prevent tampering. Mqxenabled mcf51em256 singlephase electricity meter reference design, rev. Single phase induction motor the single phase induction machine is the most frequently used motor for refrigerators, washing machines, clocks, drills, compressors, pumps, and so forth. Ddsd101kt1 single phase electric prepayment energy meter. Meter enclosure a wood or metal cabinet, or metal socket, installed indoors or outdoors, in which the companys metering equipment is located. The red wire shows the live or line or phase and the blake shows the neutral wire. Induction type energy meter used invariably to measure the energy consumed in any a.
The user will be provided with a digital code with user electricity procurement information by the electricity vending office after electricity procurement at designated vending office, which will be input into the energy meter by the user, verified by the. Overview hxe34kp three phase four wire prepaid keypad meter is designed for the purpose of prepayment. This article focusses only on its constructional features and its working. Designed as standard for using as doubletariff meter. A single phase meter is used in alternating current systems. Technical specifications for single phase electronic energy meter of. The three phase meter is constructed by connecting the two single phase meter through the shaft. The s0 interface is a hardware interface for the transmission of. Energy meter circuit detailed project with source code.
Phasor diagram of single phase induction type energy meter 6. Construction driving system, moving system, braking syatem, and registering system 4. Single phase circuit diagram of the device enclosed with the tender documents. Ti designs isolated communications between metrology afe. The ade7953 is a high accuracy electrical energy measurement ic intended for single phase applications. Features the portable single phase energy meter test bench is used for grid corporation of measurement and energy test center, management. Feb 19, 2017 construction and working of single phase energy meter.
Single phase wiring installation is the most common wiring in residential buildings. Dds102t1 single phase electronic energy meter dds102j1 single phase electronic energy meter register display ddsy102k3 single phase electronic type prepayment energy meter. These graphics below shows the above idea in a very simple way. Single phase electrical wiring installation in home nec. There is a copper shading ring at the central limb of the shunt magnet. Jul, 2016 operating principle of single phase induction type energy meter. The voltage and currents of the power line are rated down to signal level using transducers like voltage and current transformers and given to that ic as shown in the figure. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. Energy meters with a sbus interface allow direct reading of.
Make sure phase type is set to single phase and pv inverter on phase 2 is enabled. Its main functions include energy measurement, data display, communication, prepayment, contactor. The design is intended to be low cost and is transformerless. It uses ad7755, a single phase energy measurement ic to acquire and process the input voltage and current parameters. This voltage is generated using one of the op amps of the opa4376 quadop amp. The measurement of energy is accomplished by means of a voltagefrequency converter connected downstream from the power meter.
Single phase or three phase digital electric meters can be used with indigenously developed add on module, which acquires energy usage data at consumer premises and after necessary processing. C to the pressure coil circuit by means of phase shifting transformer. This article is really good kurrey consultancy services november 25, 2018 at 2. Pic18f87j72 singlephase energy meter calibration users guide. Electromechanical energy meters have been the standard for metering the electricity since billing began. What is the solution for the drawbacks of commonly used energy meters. The electricity meters in our single phase meter range are all mid approved meters. 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. Here we are going to discuss the singlephase induction type in detail. But these are now being gradually replaced by electronic digital energy meters. The design uses a halfwave rectified power supply circuit and a shunt current sensing element.
The user will be provided with a digital code with user electricity procurement information by the electricity vending office after electricity procurement at designated vending office, which will be input into the energy meter by the user. To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. Single phase energy meter theory pdf download mastercard. In single phase supply 230v in uk, eu and 120v in us, canada, there are 2 one is line live and the other one is neutral incoming cables from the utility poles to energy meter and then directly connected to the main distribution board consumer unit. A single mcp3909 acts as the analog front end measurement circuitry. These power measurement instruments are ideally suited to applications where reliable, precise measurements are required, but where. One single phase energy meter, one single phase load, stop watch and connecting wires. With the growing consumption of energy worldwide, particularly in the residential market, utility providers need increasingly accurate, and costeffective energy metering solutions. Electrical energy meters principles and applications.
Meter a device for measuring the electric power and energy supplied to a customer. The individual pulses are then summated through the use of an electromechanical meter, and are made available at a pulse output as well. Overview of single phase induction type energy meter. Single phase induction type energy meter is also popularly known as watthour meter. In this diagram, a single meter is used to both measure the grid and a single phase pv inverter. Voltage from mains is directly fed to a rc based circuit followed by a. What is the solution for the drawbacks of commonly. 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. Instrumentation values are available to aid meter commissioning.
Energy meter is an instrument which measures electrical energy. Top 7 mistakes newbies make going solar avoid these for effective power harvesting from the sun duration. Implementation of a singlephase electronic watthour meter. Calibration and testing of single phase energy meter calibration and testing of single phase energy meter aim. Elster as bs single phase smart meter from mwa technology. Um1529 features doc id 022953 rev 1 735 1 features low cost single phase energy meter solution supports iec 61036. Apr, 2012 introduction single phase induction meter 3. Note down the reading of two meters in a given period of time, say 2 minutes.
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