Handbook on Electricity Meters
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Design Electricity Meters with Kinetis M Series Mcus FTF-SEG-F0469
Design Electricity Meters with Kinetis M Series MCUs FTF-SEG-F0469 Felix Wang | Senior Global Product Manager Martin Mienkina | Senior Member of Technical Staff M A Y . 2 0 1 4 TM External Use Session Objectives • Understand electricity meter block diagram and major functionalities • Familiarize with Kinetis M series MCUs • Become familiar with Freescale electricity meter reference designs, HW/SW development tools and algorithms offering • Mastering MCU programming… Tutorial • Ideal Hilbert Transformer Kinetis M series products are designed for next-generation smart meter applications. The cost-effective Kinetis M series MCUs combine a sophisticated analog front end (AFE), hardware tamper detection and low-power operation to enable the design of secure, high-accuracy 1-, 2- and 3-phase electricity metering solutions. Freescale also provides proven 1-, 2-, and 3-phase hardware reference designs with complex metrology firmware satisfying 0.1% measurement accuracy and all ESD requirements. Traditional smart metering designs typically employ two chips to separate user billing software from the main application code, as required by WELMEC, OIML and other global standards. However, Kinetis M series MCUs handle this task with a single chip due to their on-chip memory protection unit, peripheral bridge, protected GPIO and DMA controller. To guard against external tampering, M series MCUs include active and passive tamper pins with automatic time stamping throughout, including on the independent real-time clock (iRTC). In addition, a random number -
Nikola Tesla
Nikola Tesla Nikola Tesla Tesla c. 1896 10 July 1856 Born Smiljan, Austrian Empire (modern-day Croatia) 7 January 1943 (aged 86) Died New York City, United States Nikola Tesla Museum, Belgrade, Resting place Serbia Austrian (1856–1891) Citizenship American (1891–1943) Graz University of Technology Education (dropped out) ‹ The template below (Infobox engineering career) is being considered for merging. See templates for discussion to help reach a consensus. › Engineering career Electrical engineering, Discipline Mechanical engineering Alternating current Projects high-voltage, high-frequency power experiments [show] Significant design o [show] Awards o Signature Nikola Tesla (/ˈtɛslə/;[2] Serbo-Croatian: [nǐkola têsla]; Cyrillic: Никола Тесла;[a] 10 July 1856 – 7 January 1943) was a Serbian-American[4][5][6] inventor, electrical engineer, mechanical engineer, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.[7] Born and raised in the Austrian Empire, Tesla studied engineering and physics in the 1870s without receiving a degree, and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. He emigrated in 1884 to the United States, where he became a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to develop a range of electrical and mechanical devices. His alternating current (AC) induction motor and related polyphase AC patents, licensed by Westinghouse Electric in 1888, earned him a considerable amount of money and became the cornerstone of the polyphase system which that company eventually marketed. -
Smart Metering for Smart Electricity Consumption
Master Thesis Electrical Engineering May 2013 Smart Metering for Smart Electricity Consumption Praveen Vadda Sreerama Murthy Seelam School of Computing, Blekinge Institute of Technology, 37179 Karlskrona, Sweden i This thesis is submitted to the School of Computing at Blekinge Institute of Technology in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering. The thesis is equivalent to 20 weeks of full time studies. Contact Information: Authors: Praveen Vadda Address: Karlskrona, Sweden E-mail: [email protected] Sreerama Murthy Seelam Address: Karlskrona, Sweden E-mail: [email protected] University advisor: Prof. Markus Fiedler School of Computing (COM) School of Computing Internet : www.bth.se/com Blekinge Institute of Technology Phone : +46 455 38 50 00 371 79 Karlskrona Fax : +46 455 38 50 57 Sweden ii ABSTRACT In recent years, the demand for electricity has increased in households with the use of different appliances. This raises a concern to many developed and developing nations with the demand in immediate increase of electricity. There is a need for consumers or people to track their daily power usage in houses. In Sweden, scarcity of energy resources is faced during the day. So, the responsibility of human to save and control these resources is also important. This research work focuses on a Smart Metering data for distributing the electricity smartly and efficiently to the consumers. The main drawback of previously used traditional meters is that they do not provide information to the consumers, which is accomplished with the help of Smart Meter. A Smart Meter helps consumer to know the information of consumption of electricity for appliances in their respective houses. -
RX210 Single-Phase Two-Wire Electricity Power Meter
APPLICATION NOTE R01AN1212EU0101 RX210 Rev.1.01 Single-phase Two-wire Electricity Power Meter Dec 03, 2012 Introduction This document provides a guide to designing Electricity Meters with Renesas 32-Bit RX210 microcontrollers. Typical electricity meter designs today use at least one microcontroller an external analog front end (AFE). The role of the AFE is to provide accurate voltage and current measurement data to the metrology computation engine implemented some times in the AFE itself or in the microcontroller firmware. Depending on the accuracy requirements mandated by industry standards and local authorities, additional signal processing tasks such as: phase and temperature compensation, noise reduction through digital filtering and harmonic analysis may be required. Beyond the basic metrology functions smart electricity meters have to be able to calculate and track energy consumption profiles and support automatic meter reading (AMR) through various communication infrastructure such as wireless or power line (PLC) etc. All these additional functions require more computational resources often provided by additional microcontrollers (MCUs) or digital program processors (DSPs). Depending on the features and performance of the MCU’s a high level of integration that can be achieved at greatly reduced cost by reducing the number of components used, design cycle and system complexity. Integrating the AFE function with the computation engine can furthermore reduce the total system cost. Targeting smart meter applications with high levels of integration this application note will explore the capabilities of the Renesas RX210 Group. Smart electricity meters are becoming the standard in many developed countries around the world due to the new demands in accurate energy consumption monitoring, reporting and billing. -
A Low Cost Watt-Hour Energy Meter Based on the ADE7757 (AN-679)
AN-679 APPLICATION NOTE One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106 • Tel: 781/329-4700•Fax: 781/326-8703 •www.analog.com A Low Cost Watt-Hour Energy Meter Based on the ADE7757 by Stephen T. English INTRODUCTION The ADE7757 board design greatly exceeds this basic This application note describes a high accuracy, low specifi cation for many of the accuracy requirements, cost, single-phase power meter based on the ADE7757. e.g., accuracy at unity power factor and at a low power The meter is designed for use in single-phase, 2-wire factor (PF = ±0.5). In addition, the dynamic range per- distribution systems. The design can be adapted to suit formance of the meter has been extended to 400. The specifi c regional requirements, e.g., in the U.S., power is IEC 61036 standard specifi es accuracy over a range of usually distributed for residential customers as single- 5% Ib to IMAX (see Table I). Typical values for IMAX are phase, 3-wire. 400% to 600% of Ib. The ADE7757 is a low cost, single-chip solution for Table I. Accuracy Requirements electrical energy measurement. The ADE7757 is a highly integrated system comprised of two ADCs, a reference Percentage Error Limits3 circuit, and a fi xed DSP function for the calculation of Current Value1 PF2 Class 1 Class 2 real power. A highly stable oscillator is integrated into 0.05 lb < I < 0.1 lb 1 ±1.5% ±2.5% the design to provide the necessary clock for the IC. The 0.1 lb < I < IMAX 1 ±1.0% ±2.0% ADE7757 includes direct drive capability for electrome- 0.1 lb < I < 0.2 lb 0.5 Lag ±1.5% ±2.5% chanical counters and a high frequency pulse output for 0.8 Lead ±1.5% both calibration and system communication. -
Electrical Multimeter Instruction Sheet Safety Information a Warning Statement Identifies Hazardous Conditions and Actions That Could Cause Bodily Harm Or Death
Model 113 English Instruction Sheet Page 1 ® 113 Electrical Multimeter Instruction Sheet Safety Information A Warning statement identifies hazardous conditions and actions that could cause bodily harm or death. A Caution statement identifies conditions and actions that could damage the Meter or the equipment under test. To avoid possible electric shock or personal injury, follow these guidelines: • Use the Meter only as specified in this instruction sheet or the protection provided by the Meter might be impaired. • Do not use the Meter or test leads if they appear damaged, or if the Meter is not operating properly. • Always use proper terminals, switch position, and range for measurements. • Verify the Meter's operation by measuring a known voltage. If in doubt, have the Meter serviced. • Do not apply more than the rated voltage, as marked on Meter, between terminals or between any terminal and earth ground. • Use caution with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard. • Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance. PN 3083192 December 2007 ©2007 Fluke Corporation. All rights reserved. Specifications subject to change without notice. Printed in China Model 113 English Instruction Sheet Page 2 • Do not use the Meter around explosive gas, vapor or in wet environments. • When using test leads or probes, keep your fingers behind the finger guards. • Only use test leads that have the same voltage, category, and amperage ratings as the meter and that have been approved by a safety agency. -
Electricity Meter
PRODUCTION BASE http://en.chintim.com/ August 2019 Electricity Meter Chint Instrument & Meter ◎ Zhejiang Chint Instrument & Meter Co., Ltd, founded in 1998, which is one of the core subsidiaries of CHINT Group, a national high-tech enterprise, and the National Torch Program key high-tech enterprise. ◎ Chint Meter provides reliable products and qualified service for customers of electricity, gas, new energy, rail transmit, communication, petrochemical architecture industry, etc. Admitting by State Grid, South Grid, Petro China, Sinopec, China Telecom, China gas, China Res Gas. ◎ Independent R&D: more than 380 items. ◎ Passed MID, KEMA, NMI, STS and other more than 10 international authority certifications. ◎ A qualified supplier of France Utility EDF. ◎ Products are sold well in more than 70 countries and regions. Leading Energy Measurement Equipment and System Solution Provider Products and Solutions Advantages Smart Electricity Meter Possessing the group "generate, storage, transmit, transfer, delivery, use" electric Smart Gas Meter equipment whole industry chain advantages. Acquiring the world second, China first R46 Power Supervision and Control Meter certification issued by International Organization of Legal Metrology (OIML). Smart Water Meter In collaboration with CHINT Electric, Chint Instrument & Meter takes the lead in developing the metering and monitoring Smart Data Concentrator functions for the smart circuit breaker. Energy Measurement System Solution IEC 1906 Award. Power Distribution Monitoring System Solution Steel gas -
Tesla's Polyphase System and Induction Motor
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 3, No. 2, November 2006, 121-130 Tesla’s Polyphase System and Induction Motor Petar Miljanić1 1 Introduction While new scientific knowledge is acquired by learning, observation, experiments and thinking, the inventions are mostly the fruit of the intuition of individuals and of their creative impulses. Inventors are people who use consciously or unconsciously the accumulated human knowledge and experi- ence, and find useful solutions for the humanity. Some of those inventions are epochal, like for instance the inventions of the steam and the internal combustion engine. These epochal inventions obviously include the Tesla’s system of poly- phase alternate currents and Tesla’s induction motor. It can be often heard that in some eras of civilization there appear needs and there ripen circumstances for the appearance of great inventions. The sequence of the human acquisition of knowledge of natural phenomena on which the function of the induction motor is based, and the sequence of experiments in the attempt to make the induction motor show that that opinion is not without basis. In the following lines, we will tell the story of the induction motor. That story will not be limited to Tesla’s key contribution only, but it will mention things that happened before and after Tesla’s patent applications by the end of 1887. 2 Discoveries The induction motor rotates thanks to the natural phenomenon which may be described by the following words: the moving magnetic field of one part of the motor, for instance the stator, induces currents in the conducting parts of another part of the motor, the rotor. -
Billing & Revenue Metering
BILLING & REVENUE METERING SMART SYSTEMS Time of Use (TOU) Billing Systems Value Proposition Solution Advantages Energy distribution and tenant billing SATEC Automatic Meter Reading (AMR) Additional profit center allows up to 40% markup and fast return on system includes various energy meters, Space and cost savings investment (ROI) with an effective techno- bi-directional communication and Automatic Operation financial solution. comprehensive software for remote Energy Saving management, online control and billing. Complete outsourced service Shopping Residential Commercial Data Centers Projects Buildings Centers & Malls Hi-Tec & Public Universities & Industrial Hospitals Buildings Student Dorms Facilities Independent Hotels & Renewable Military Power Holiday Energy Plants Facilities Producers Resorts (IPPs) 2 The Experts in Energy Billing SATEC was established in 1987 and recently after introduced a Communication infrastructure for automatic continuous multi-function digital electricity meter, which was a new concept collection of data through various options – wired (RS-232, RS- at that time. Today the company is a world leader in the field of 485, Ethernet) or wireless (Cellular or license-free RF) energy management, power quality monitoring and substation The information is sent over the Internet to a secured central automation with offices in the USA, Israel, Spain, Russia, India, server running ExpertPower™ software on the cloud. This Singapore, Japan, China and Australia. In addition, SATEC allows high availability and simultaneous access to all relevant solutions are promoted in over 60 countries via over 100 business personnel, based on personal access permissions. partners. Dedicated project managers, together with SATEC's technical In 2006 SATEC established the Billing department, which is support team, carry out system setup, tenant definition and dedicated to energy distribution and billing. -
Tesla's Connection to Columbia University by Dr. Kenneth L. Corum
* Tesla’s Connection to Columbia University by Kenneth L. Corum and James F. Corum, Ph.D. “The invention of the wheel was perhaps rather obvious; but the invention of an invisible wheel, made of nothing but a magnetic field, was far from obvious, and that is what we owe to Nikola Tesla.” Professor Reginald Kapp, 1956 INTRODUCTION The Electrical Engineering curriculum at Columbia University, though not the first in the US, is one of the oldest and most respected EE programs in the world. From the beginning, a conscientious effort was made to base it on a foundation of science. It has been guided by the specific philosophy stated by Professor Michael Pupin: “Professor Crocker and I maintained that there is an ‘electrical science’ which is the real soul of electrical engineering.” Arguably the most stunning and significant lecture in modern history was presented one spring evening, more than a century ago, at Columbia University. The wealth of nations turned on its merits. Weighing on the balances would be our vast cities, civilization, and quality of life. But, what was it? . .Whatever it was, its impact has been as momentous for the progress and prosperity of civilization as the invention of the wheel! . It was Tesla’s great discovery and analysis of the rotating magnetic field, and a means for the electrical distribution of energy.1 As a result of the analysis presented in this lecture, the great Falls of Niagara would soon be harnessed for the benefit of mankind and launch civilization into the “Electromagnetic Century”. The Engineering Council for Professional Development (now called ABET) has defined “Engineering” as “that profession which utilizes the resources of the planet for the benefit of mankind”. -
Digital Electricity Meter Eletronic Polyphase Meters LD / LM / LK / ML / LGRW Series Digital Electricity Meter
www.lsis.biz Digital Electricity Meter Eletronic Polyphase Meters LD / LM / LK / ML / LGRW Series Digital Electricity Meter Eletronic Polyphase Meters Digital Electricity Meter (LD / LM Series) LS Digital meters increase space application by minimizing size, has various types and reliability by easy maintenance. �1phase 2wiring, 3phase 3wiring, 3phase 4wiring, Flush mounting Digital Electricity Meter (LK Series) As its reputation for advanced technology LSIS replaces the generation of electronic meters. �High performance with multifunction �Operating power supply �Convenient operation South-East Asia Heters (ML Series) �Global target specification �10(100)A, BS 5685 Eletronic Polyphase Meters (LGRW Series) The best technique of LS realize the substitution of electronic meter generation. �Accurate setting �Modem and communication interface �Various external output pulse �Demand controller application, saving electric charge LD/LM Series Digital Electricity Meter LSIS Digital watt hour meter The best technique of LS realize the substitution of electronic meter generation. <LM Series> <LD Series> LS Digital W-meter increases space application by minimizing size, has various types and reliability by easy maintenance. Digital Electricity Meter LD/LM Series LD series 6 LM series 8 Application 10 Contents LD Series Ratings / Dimensions 12 LD Series (CT/PT operated meter) Ratings / Dimensions 19 LM Series Ratings / Dimensions 23 MWT Series Ratings / Dimensions 24 Ratings and specification 25 Diagram 28 1P2W Up/Down type 1P2WLeft/Right type 3P4W Up/Down type 3P4W Left/Right type Digital Electricity Meter LSIS Digital watt hour meter The best technique of LSIS generates innovative meters. <LM Series> <LD Series> High reliable CPU Large LCD The CPU of watt hour meter is same as humans brain. -
Prodigal Genius BIOGRAPHY of NIKOLA TESLA 1994 Brotherhood of Life, Inc., 110 Dartmouth, SE, Albuquerque, New Mexico 87106 USA
Prodigal Genius BIOGRAPHY OF NIKOLA TESLA 1994 Brotherhood of Life, Inc., 110 Dartmouth, SE, Albuquerque, New Mexico 87106 USA "SPECTACULAR" is a mild word for describing the strange experiment with life that comprises the story of Nikola Tesla, and "amazing" fails to do adequate justice to the results that burst from his experiences like an exploding rocket. It is the story of the dazzling scintillations of a superman who created a new world; it is a story that condemns woman as an anchor of the flesh which retards the development of man and limits his accomplishment--and, paradoxically, proves that even the most successful life, if it does not include a woman, is a dismal failure. Even the gods of old, in the wildest imaginings of their worshipers, never undertook such gigantic tasks of world- wide dimension as those which Tesla attempted and accomplished. On the basis of his hopes, his dreams, and his achievements he rated the status of the Olympian gods, and the Greeks would have so enshrined him. Little is the wonder that so-called practical men, with their noses stuck in profit-and-loss statements, did not understand him and thought him strange. The light of human progress is not a dim glow that gradually becomes more luminous with time. The panorama of human evolution is illumined by sudden bursts of dazzling brilliance in intellectual accomplishments that throw their beams far ahead to give us a glimpse of the distant future, that we may more correctly guide our wavering steps today. Tesla, by virtue of the amazing discoveries and inventions which he showered on the world, becomes one of the most resplendent flashes that has ever brightened the scroll of human advancement.