Typical connections inside electronic meters more information on the current and voltage sensors, adcs, and other hardware is provided in the following sections. This article focusses only on its constructional features and its working. 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. Implementation of a singlephase electronic watthour. Current sensors are connected to each of the current channels, and a simple voltage.
Energy smart meters smart electricity meters overview smart metering essentially involves an electronic power meter supplemented by full remote control, diagnostics, power peak and consumption analysis, antitampering mechanisms, fault alert, timevariable tariffs, and many more possibilities. Enabling disabling pvrss feature can be done from the inverter lcd menus. Here we are going to discuss the single phase induction type in detail. This is the power which is used to drive the shaft in the electric motor and is the. Ade75xxade71xx singlephase energy measurement ic with 8052. Can you guys suggest some microcontroller for this project. Technical specifications for single phase static meter the equipment covered by these broad specifications shall conform to the requirements stated in latest editions of relevant indian iec standards and regulations. A single phase meter is used in alternating current systems. Singlephase energy meter with 80 a maximum current based on. Meter connection options in a single inverter system, the meter is connected directly to an rs485 port of the inverter. It is used in domestic and industrial ac circuit for measuring the power consumption.
The single phase electrical energy meter principle block diagram is shown in fig. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. Basic electronic meters are not just more costeffective than mechanical meters, but offer further benefits. Kw1m, kw1mh terminal arrangement and wiring diagrams. Bl6523bsingle phase, multifunction energy meter ic. Phasor diagram of single phase induction type energy meter 6. Single phase induction type energy meter slideshare.
With advantages of few components, simple construction, high reliability, low power and long service life, it can be used to measure the single phase ac active energy consumption at a frequency of 50hz. What are the advantages and disadvantages of usual energy meters. Presented here is a simple energy meter using analog devices ade7757 chip for single phase, 2wire phase and neutral systems used in households. The stpm01stpm10 energy metrology ics incorporate all the core circuitry required to implement the metrology of a class 1 electricity meter as well as that of a din or home smart plug meter. Implementation of a singlephase electronic watthour meter using. Current sensing for energy metering analog devices. The meter will read the money from the prepaid card and will recharge the meter. Tcpip protocol and extended tcpip at commands which. The ade75xxade71xx integrates analog devices energy ade metering ic analog front end and fixed function dsp solution with an enhanced 8052 mcu core, a rtc, an lcd driver and all the peripherals to make an electronic energy meter with lcd display with a single part. Single phase electromechan of the digital solid state energy meter 11. Addition of reference to troubleshooting undetected devices application note. Recent listings manufacturer directory get instant insight into any electronic component. The three phase meter is constructed by connecting the two single phase meter through the shaft.
Lets introduce functions and operations of this product. A residential energy meter with maximum current of 200amps that is based on the rogowski coil and ade7759 has recently been introduced. Iec1107 energy meter block diagram single phase meter board connection iec1107 block diagram of power factor meter single phase energy meter connection diagram energy meter to load iec1107 port ad1p text. A second terminal block between the current transformer and the meter simplifies service work. The xle12kp utilizes the wellproven sts standard keypad technology for oneway credit and debt management. This electronic meter does not possess any rotating parts, and the. Ade7752b 3phase, 3wire, and 4wire energy metering ic with. It adopts the advanced technology of lsi large scale integrated circuit and digital signal processing.
Electromechanical energy meters have been the standard for metering the electricity since billing began. The meter is connected to an rs485 port of one of the inverters. Top 7 mistakes newbies make going solar avoid these for effective power harvesting from the sun duration. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter.
This is the power which is used to drive the shaft in the electric motor and is the power. Figure 12 shows the schematic diagram of the half reference voltage generator. 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. Ade7752b 3phase, 3wire, and 4wire energy metering ic. This paper presents a single phase electrical energy meter based on a microcontroller from microchip technology inc. Detailed information and tools for energy meter interfaces can be downloaded from the gossen metrawatt homepage, under the section. Implementation of a single phase electronic watthour meter using.
These devices are designed for effective measurement of active, reactive and apparent energy in a powerline system using current transformer. The electricity meters in our single phase meter range are all mid approved meters. Construction driving system, moving system, braking syatem, and registering system 4. The xle12kp is the latest evolution in electricity prepayment metering from xili. Single phase energy meter with 80 a maximum current based on stpm10 metering ic and stm8l152c6 mcu with dual interface eeprom introduction this document describes the functioning of a single phase energy meter based on the stpm10 metering ic and stm8l152c6 microcontroller. Jul 25, 2018 energy meters are the basic part to measure the power consumption. Top results 6 part ecad model manufacturer description datasheet download.
Here we discuss the construction and working principle of induction type energy meter. If the inverter has a second rs485 port, use this port to. Energy meter circuit detailed project with source code. A single phase twowire star connection to the mains is shown with tamper detection. Handbook on electricity meters asiapacific economic cooperation. Single inverter connection in a multiple inverter system, two options are available. The energy consumption is measured by all electrical services using kilowatt hours meter with refer to kilowatthours kwh 1. The above drawing shows a simple single phase motor circuit. In case measuring high voltage circuit, make a 2step construction by. The individual pulses are then summated through the use of an electromechanical meter, and are made available at a pulse output as well. Implementation of a singlephase electronic watthour meter using msp430afe2xx rev. Pdf a single phase microcontroller based energy meter.
Electrical energy meters principles and applications. Electronic single phase energy meter is designed based on mb95f204k and special energy measurement chip ade7755. Single phase circuit diagram of the device enclosed with the tender documents. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation. What is the solution for the drawbacks of commonly used energy meters. And also for reading the current ct is used which is inductive and current will lag. Implementation of a single phase electronic watthour meter using the msp430f6736 bart basile, stefan schauer, kripasagar venkat abstract this application report describes the implementation of a single phase electronic electricity meter using the texas instruments msp430f673x metering processor. It is used everywhere, no matter how big or small consumption it is. The energy is the total power consumed and utilised by the load at a particular interval of time.
The block diagram of microcontroller based electricity consumption meter is shown in the figure which consists of different blocks as mentioned above. Implementation of a singlephaseelectronic watthour meter using the msp430afe2xx feng hou, percy yu. Feb 19, 2017 construction and working of single phase energy meter. Installation guide energy meter with modbus connection. The measurement of energy is accomplished by means of a voltagefrequency converter connected downstream from the power meter. Implementation of a singlephase electronic watthour meter. I am currently studying msp430afe2xx from texas instrument, any pointers for this ic. Keypad single phase prepaid energy meters with sts iec standard. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households.
Product overview important information on using the mcp3909 3phase energy meter reference design including a getting started. Jan 15, 2018 in this video, i try to explain the concept of single phase electrical meter or single phase energy meter. Figure 2 shows a block diagram of the highlevel interface that is used for a single phase energy meter application using the f6736a. Clearance for three phase inverters installed sidebyside, single row of inverters outdoors. Mcp3909 3phase energy meter reference design using. Whether you require a singlephase kwh meters or fullfeatured, dual tariff energy meter. Dc voltage will be rectified from a three phase power supply. Kinetism threephase power meter reference design nxp. Single phase electricity is connected at 230 or 240 volts via 2 wires, active and neutral, and is found in most domestic settings. Energy is the product of current and voltagein the case of 3 phase supply power factor must be considered. There are two types of domestic ordinary power consumers meters single phase and three phases. The following is the electrical interface circuit for the meter.
These are very important for energy metering application because of the hostile operating condition and long operation life of an energy meter. But these are now being gradually replaced by electronic digital energy meters. Single phase digital energy meter all about circuits. Try findchips pro for block diagram of prepaid energy meter. Technical specifications for single phase electronic energy meter of. 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. Single phase induction type energy meter is also popularly known as watthour meter. Jul, 2016 operating principle of single phase induction type energy meter. The total energy is the sum of the reading of both the elements. Apr, 2012 introduction single phase induction meter 3. Single phase electricity meters gas meters energy meters. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. Pdf design and implementation of controllerbased multifunction. This meter is 1 phase 2 wire direct connected electricity meter with one pinch din rail housing.
This paper presents a totally electronic single phase energy meter for residential use, based on microchip technology inc. The current and the voltage acted on the solid state electronic components. Singlephase twowiresinglephase threewirethreephase threewire system. These mid meters are all compact and lightweight and rated as class 1 and 2, so you can rely on electricity meter accuracy. Microcontroller based wireless energy meter working. The above drawing shows a simple single phase motor circuit, which contains a wattmeter. Figure 1 shows the block diagram escort pakistan ltd. To better understand the working of microcontroller based wireless energy meter, we must the working of each block of electronic energy meter. In the case of electronic energy meter different transducers are used to calculate i,v and p. It uses ad7755, a single phase energy measurement ic to acquire and process the input voltage and current parameters. Simple and compact power meter perfect for control panels. Block diagram of transformer based power supply for msp430 based energy meter block.
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