In some areas, the meter reader must walk to each meter, which takes a lot of staff time. Others may bypass the meter, wholly or in part, which can cause an increase in the ac current flowing through the meters neutral terminals. Electricity meter integrated circuits and reference. Ami headend the ami headend is the back office system than controls the. Oct 16, 2014 introduction to frequency meter universal counter need of frequency meter a digital frequency meter is a generalpurpose, basic, digital counter for measuring, setting, and monitoring frequencies, for counting random events, and for industrial counting applications. It is almost impossible to block 100% of the rf emissions and if someone says you can they most likely do not understand rf and how it works. Plant bulletin plant bulletin ue meter wiring diagrams for new and photovoltaic. Microcontroller based wireless energy meter working. Figure 1 is a highlevel block diagram of the subsystems within a typical. The data collected form smart meters cannot be access by unauthorized entities. Water meter integrated circuits and reference designs.
Hardware and software architecture of a smart meter based. Design of a smart energy meter with overload trip facilities ijeat. Sonos flash memory an52433 serial nvsram cy14b064 process flow diagram of energy meters energy meter circuit diagram soic16 cy14b101p smart meter text. Both ultrasonic and traditional rotary meters benefit from low current consumption and integration that extend battery life and reduce system cost. Pdf this paper produces the design and building a system that gives a solution to the. Energy meter or watthour meter is an electrical instrument that measures the amount of electrical energy used by the consumers. According to their communications modes, the meters currently on the market can be divided as follows.
Pdf a single phase microcontroller based energy meter. Wireless technologies for smart meters analog devices. Digital multimeter working principle analyse a meter. Designing smart meters with circuit protection, sensing, and power. An analog meter figure a moves a needle along a scale. Smart metering in electric power distribution system. Our patented smart meter shield lowers exposure to emf radiation generated by smart meter to almost negligible level. I live at an apartment complex and i want to block all the signals to all the. History deserves to be remembered recommended for you. Implementation of a singlephase electronic watthour meter. Electric meter communicating with tstats, appliances, water. Implementation of a singlephase electronic watthour. The device is called a smart meter guard check it out here and it has been proven to cut 98% of the radiation from a smart meter. Digital frequency meter is a general purpose instrument that displays the frequency of a periodic electrical signal to an accuracy of three decimal places.
Design and implementation of gsm based smart energy meter sem for home applications 436 2040 units 200 10 above 40 units 300 10 the arduino uno is a microcontroller board based on the atmega328pu microcontroller. To the other terminal of the gate, a pulse of 1 sec is applied as shown in the fig. Qmeter we know that every inductor coil has a certain amount of resistance and the coil should have lowest possible resistance. The instrument which measures the storage factor or quality factor of the electrical circuit at radio frequencies, such type of device is known as the qmeter. Load control send pricing signals to consumers for smarter energy. Whether for single or polyphase meters we have the right ingredients for accurate energy measurement and efficient communicat. The general rule is get the best meter you can afford.
The main and auxiliary sections of a smart meter design are shown below in figure 1. Smart metering essentially involves an electronic power meter supplemented by full remote control, diagnostics, power peak and consumption analysis, antitampering mechanisms, fault alert. Here it is with comments about the form 9s meter wiring diagram below. This electronic meter does not possess any rotating parts, and the. Smart metering technology and applications workshop topics covered. Pdf smart metering in electric power distribution system. The 0 110 db step attenuator receives its control information from the upconverter. Ti energy library firmware calculates all energy measurement parameters including active and reactive power and energy, rms current and voltage, power factor, line frequency, fundamental and thd readings.
Flash block swap reliably completes firmware update. The number of pulses counted at the output terminal during. Our smart meter installer will have set up your display and linked it to your smart meter, so youre ready to go. The quality factor is one of the parameters of the oscillatory system, which shows the relation.
I was hopeing someone on here might have a clue as to what goes on inside or knows of a book. Pdf design and building a singlephase smart energy meter using. The function of the meter can be changed by switching the dial. S0, as you begin to study the wiring diagram i want to make note of a few things. Block diagram of ph meter, block diagram of ph meter suppliers directory find variety block diagram of ph meter suppliers, manufacturers, companies from around the world at concrete block making machine,building block,glass blocks, ph meters. Smart meter block diagram cellular wifi cellular wifi ismband soc radio ismband soc radio rf front end rf front end armdsparmdsp clockclock lcdlcd external modem external modem digital isolation digital isolation wired interface wired interface led driverled driver afeafe macmac eepromeeprom clockclock ethernet usb rs232 rs486 ports. Liteon semiconductor smart meter protection device solutions. The general block diagram of a smart meter is shown in figure 1. Introduction to frequency meter universal counter need of frequency meter a digital frequency meter is a generalpurpose, basic, digital counter for measuring, setting, and monitoring frequencies, for counting random events, and for industrial counting applications. For a list of maxims recommended smart meter solutions, please go to. Shielding and measurement issues stop smart meters. The shield attenuates the unnecessarily high radiation generated by your meters transmitter. The following is the electrical interface circuit for the meter. Also, the smart meter guard does not fit water and gas smart meters.
It also explains the properties of the coil and capacitor. Apr 15, 2017 one of the questions that i often get is about how to wire a form 9s meter. Monitoring and protecting smart meter circuitry and. Source output level is determined by a combination of three settings that are calibrated during adjustment. Pdf design and building a singlephase smart energy.
Block diagram of ph meter suppliers, all quality block. Can i shield my living space from the rf radiation from my smart meter. Our integrated circuits and reference designs help you create smarter electricity meters with advanced security and connectivity features to meet system design requirements. In many cases, this is done from a car, where the meters dial is photographed using a camera with a telelens. The smart meter guard will block about 98% to 99% of the rf which means if you are reading 600 to 1,400 uwm2 you have reduced your exposure by 98% to 99%. The hp431c power meter indirectly measures microwave frequency power by using two bridge circuitsthe detection bridge. Attach the blind plate provided in the adaptation kit over the calibrator stem assembly hole. Schematic diagram for watthour meters electricalpartmanuals. Smart meter block diagram power line communications analog front end afe ad converter cc25xx 802. View and download npower smartpower user manual online. That metal ring is the same size on all smart meters in the us and canada.
Block diagram 2 block diagram figure 1 shows the system block diagram of the evm. The evm is divided into the metrology portion that has the msp430afe and the application portion that has the msp430f6638. Most utility companies are at least considering the implications of future smart metering applications when making todays deployment decisions. Since i get this question so often i thought i would put up a form 9s meter wiring diagram. The idea of shielding is to place a rf barrier between you and the source of the rf. In case energy theft is happened the owner and consumer get message to take necessary action. For most people, cornet meters provide sufficient information to make a good assessment of where problem areas are and assist you in eliminating mitigating them. Universal pulse transmitter upt installationservice. Meter installation manualhxe310 4 18 1 general view figure 1. The meter will read the money from the prepaid card and will recharge the meter. The digital photo is then inspected at a central location, by a person who enters the number into a computer.
It is possible to shield against smart meter radiation, but in order to assess the results, you need an rf meter see above. Meters that support remote automatic metering constitute only a small proportion. Some attempt to alter the characteristics of the load by adding capacitance, halfwave rectified loads, or instantaneous high currents. Use onehalf the ct ratio as the transformer factor in determining the meter multiplier. At present, smart gas meters account for 3040% of all existing gas meters in china. Block diagram of a digital multimeter electronics forum.
Hardware and software architecture of a smart meter based on. Study on cost benefit analysis of smart metering systems final report content executive summary 6 recommendations 8 1. The latest generation of smart electricity, water, and gas meters now. Robertson, phillips, and the history of the screwdriver duration. Figure 5 circuit diagram of prepaid energy meter to the above diagram gsm technology is included to send messages to the customer about the balance amount and if the amount is totally used up then we shut down the power after alerting user. Annexure b technical requirement document for smart meter project 9israel electric corporation 1. By shielding it, we limit the meters transmission power. Monitoring and protecting smart meter circuitry bourns. The q meter measures the quality factor of the circuit which shows the total energy dissipated by it. Apr 14, 2014 robertson, phillips, and the history of the screwdriver duration.
The msp430afe is a slave metrology processor and the msp430f6638 is the hostapplication processor. Pdf implementation of automatic meter reading amr using. Automatic meter reading amr aims to move away from the traditional method of manual reading of electricity meters in which a meter reader who visit every meter location periodically and read the. Remove the calibrator from the meter dome adaptor by removing the two small holddown screws and carefully rotating the calibrator body clockwise. As the preset period gets completed, the value in the counter. The system consists of power consumption monitoring systems smart meter at customer homes and a control system for remotely reporting and handling the smart. Implementation of a singlephase electronic watthour meter using msp430afe2xx rev. Meter internal wiring front view single phase threewire with ct connections to socket front view or set meter potential stabat 6 oclock or 9 oclock position, to matchsocket connection. Smart meters overview 4 maxim smart grid solutions for meter manufacturers servicing global utility markets, the above combination of driving forces presents significant opportunities and challenges. Most of them are ic cardbased prepayment smart meters. Introduction the following document describes the requirements and guidelines for the smart meter project, including all technical and functional requirements for smart meters. For fully mechanical meters, the measurement of water flow can be based on. The block diagram of microcontroller based electricity consumption meter is shown in the figure which consists of different blocks as mentioned above. The smart meter board smb performs energy or electricity metering and has the capability of transferring.
Study on cost benefit analysis of smart metering systems. Design and implementation of a selfpowered smart water meter. We make the gas meter guard product to block rf emitted by smart water and gas meters. Basically i need something to show me how it works and all the different parts inside of the meter. While reflecting smart meter radiation has proven to be an unreliable approach, there is a new device available that very effectively blocks it instead.
Electric meter communicating with tstats, appliances, water heaters, pool pumps, electric hybrids, etc. You can compare your smart meter to a cell phone tower. It is expected that the reader is already familiar with smart meter architectures and performance requirements. If you continue browsing the site, you agree to the use of cookies on this website. A sdvosb service disabled veteran owned small business. Internet of thingsiot based smart grid 1mitali mahadev raut, 2ruchira rajesh sable. Feb 03, 20 our patented smart meter shield lowers exposure to emf radiation generated by smart meter to almost negligible level. Smart grid distribution and smart meters stmicroelectronics. The access point is a subsystem within the ami system that performs high volume data collectionaggregation and transport capabilities. It was designed specifically for electrical smart meters. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. The q meter uses in a laboratory for testing the radio frequency of the coils. Apr 17, 2014 a digital energy meter with cost indicator slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Metering requirements for electrical installations counties power limited telephone 0800 100 202 14 glasgow road fax 09 2370320 private bag 4. Metering requirements for electrical installations 2015. To better understand the working of microcontroller based wireless energy meter, we must the working of each block of electronic energy meter. It confines the weakened radiation to the very close proximity of the meter. As shown in the block diagram, in a typical digital multimeter the input signal i. Universal pulse transmitter upt installationservice bulletin mn01045 issuerev. The ratio of the inductive reactance to the effective resistance of the coil is called the quality factor or qfactor of the coil. Mar 17, 2004 hi guys ive been searching for a block diagram of a digital multimeter. Jul 31, 2018 digital frequency meter is a general purpose instrument that displays the frequency of a periodic electrical signal to an accuracy of three decimal places. Block diagram representation the above block diagram represents our proposed iiot based smart energy meter i system. Ue plant bulletin plant bulletin ue meter wiring diagrams for new and photovoltaic solar embedded generator connections. It counts the number events occurring within the oscillations during a given interval of time. I was hopeing someone on here might have a clue as to what goes on inside or knows of a.
After calibrating voltage, the meter can be calibrated in terms of ohms. The hp431c power meter indirectly measures microwave frequency power by using two bridge circuitsthe detection bridge and the compensation and metering bridge. The signal waveform whose frequency is to be measured is converted into tngger pulses and applied continuously to one terminal of an and gate. In order to make a conventional energy meter smart. Analog multimeter shown in the figure is cheap but difficult for beginners to read. Smartpower measuring instruments pdf manual download.
However, they require labor intensive manual meter reading. The form 9s meter is one of the most commonly used meter forms. Relation with commissions benchmarking report 12 1. First is that the colors that i chose were chosen at random. Hi guys ive been searching for a block diagram of a digital multimeter. As the preset period gets completed, the value in the counter display on the screen and the counter reset to zero. The information could be printed according to requirements of power supply company.
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