Conferences related to Watthour Meters

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2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.


2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)

This symposium pertains to the field of electromagnetic compatibility.


2020 IEEE Power & Energy Society General Meeting (PESGM)

The Annual IEEE PES General Meeting will bring together over 2900 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more


IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society

IECON is focusing on industrial and manufacturing theory and applications of electronics, controls, communications, instrumentation and computational intelligence.


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Periodicals related to Watthour Meters

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Consumer Electronics, IEEE Transactions on

The design and manufacture of consumer electronics products, components, and related activities, particularly those used for entertainment, leisure, and educational purposes


Electrical Insulation Magazine, IEEE

The magazine covers theory, analysis, design (computer-aided design), and practical implementation of circuits, and the application of circuit theoretic techniques to systems and to signal processing. Content is written for the spectrum of activities from basic scientific theory to industrial applications.


Industrial Electronics, IEEE Transactions on

Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, high-power controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.


Industry Applications, IEEE Transactions on

The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.


Instrumentation and Measurement, IEEE Transactions on

Measurements and instrumentation utilizing electrical and electronic techniques.


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Most published Xplore authors for Watthour Meters

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Xplore Articles related to Watthour Meters

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Effect of harmonics on watthour meters-laboratory investigations

Proceedings of the 32nd Midwest Symposium on Circuits and Systems,, 1989

Laboratory investigation of the effect of harmonics on induction watthour meters is presented. The study is focused on the effects of harmonics when they are injected from the source side and from the load side. The studies indicate that the watthour meters give negative error when the frequency is injected from the source side. Moreover, higher negative error was observed ...


New precise comparison methods of testing watthour meters

IEEE Transactions on Instrumentation and Measurement, 1976

Describes two methods which utilize only integral revolutions, counted over a continuous run. The first method-method of differences-permits the test to be limited (with moderate stabilization) to a single revolution, with mean precision ±0.02 percent. The second method-method of coincidences-measures accurately the relative error from a number of revolutions, dispensing with a stabilizer. No specially equipped reference meter need be ...


A test system and test method for static watthour meters for immunity to HF electromagnetic fields

Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I & M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424-9), 1994

In Japan, testing of the immunity of static watthour meters to HF electromagnetic fields as part of the type approval test is conducted in accordance with IEC Publication 801-3. The authors have constructed a test system to check such immunity. This system uses a log periodic antenna and biconical antenna and checks the said immunity to electromagnetic field strength of ...


Qualifying watthour meters for use as MAP transport standards

Conference on Precision Electromagnetic Measurements, 1990

One of the US National Institute of Standards and Technology (NIST) Measurement Assurance Programs (MAP) transfers the watthour using transport meters. A statistical design is used to determine the linear and nonlinear corrections for the response of each meter to varying conditions of voltage, current, temperature, and power factor. The process tests for nonlinearities and interaction terms in the response. ...


A high accuracy standard for electricity meters

IEEE PES T&D 2010, 2010

Advances in electronic metering have ushered a proliferation of claims from vendors that their meters are accurate to some small, random, un-documented number. Statements of this sort are misleading and undermine the standards that were developed through the deliberation and input of all parties concerned with electricity metering. The author would set forth that a new standard which encompasses the ...


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Educational Resources on Watthour Meters

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IEEE-USA E-Books

  • Effect of harmonics on watthour meters-laboratory investigations

    Laboratory investigation of the effect of harmonics on induction watthour meters is presented. The study is focused on the effects of harmonics when they are injected from the source side and from the load side. The studies indicate that the watthour meters give negative error when the frequency is injected from the source side. Moreover, higher negative error was observed for even-order harmonics. An insignificant error was observed when similar studies were repeated from the customer side.<<ETX>>

  • New precise comparison methods of testing watthour meters

    Describes two methods which utilize only integral revolutions, counted over a continuous run. The first method-method of differences-permits the test to be limited (with moderate stabilization) to a single revolution, with mean precision ±0.02 percent. The second method-method of coincidences-measures accurately the relative error from a number of revolutions, dispensing with a stabilizer. No specially equipped reference meter need be used. A large number of meters can be tested within a short time interval by a single operator without special training. These methods, primarily developed for watthour meters, are suitable for other rotating instruments as well.

  • A test system and test method for static watthour meters for immunity to HF electromagnetic fields

    In Japan, testing of the immunity of static watthour meters to HF electromagnetic fields as part of the type approval test is conducted in accordance with IEC Publication 801-3. The authors have constructed a test system to check such immunity. This system uses a log periodic antenna and biconical antenna and checks the said immunity to electromagnetic field strength of upto 10 V/m with a HF range between 80 MHz and 1 GHz in an anechoic chamber. In addition, the use of a TEM cell enables a similar test for the range between 1.5 MHz and 240 MHz with a field strength of upto 80 V/m. The immunity test consists of the following two components. (1) Observation of any change in the display on the static watthour meter subject to electromagnetic radiation when only rated voltage is supplied to the voltage circuit of the said meter. (2) Observation of any change in error of the static watthour meter subject to electromagnetic radiation when rated voltage and current are supplied to the voltage circuit and current circuit respectively of the said meter. The present report describes the evaluation method for the field uniformity inside the anechoic chamber, the immunity test system and the test method developed by the authors.<<ETX>>

  • Qualifying watthour meters for use as MAP transport standards

    One of the US National Institute of Standards and Technology (NIST) Measurement Assurance Programs (MAP) transfers the watthour using transport meters. A statistical design is used to determine the linear and nonlinear corrections for the response of each meter to varying conditions of voltage, current, temperature, and power factor. The process tests for nonlinearities and interaction terms in the response. The test points are distributed over a design volume and are chosen to determine the statistically significant corrections with the minimum number of measurements. For applications requiring less accuracy, a heuristic for dropping correction terms is given. Of the eight meters characterized, four are described adequately by a linear model, while the other four require a cubic model.<<ETX>>

  • A high accuracy standard for electricity meters

    Advances in electronic metering have ushered a proliferation of claims from vendors that their meters are accurate to some small, random, un-documented number. Statements of this sort are misleading and undermine the standards that were developed through the deliberation and input of all parties concerned with electricity metering. The author would set forth that a new standard which encompasses the capabilities of modern electronic meters be approved. A new accuracy class of 0.1% would require manufacturers to test meters under all approved test conditions and would give buyers a current standard to use when evaluating meter technologies. The market acceptance of high accuracy instrument transformers is a clear indicator that utilities see the necessity for high accuracy equipment at large power transfer points on the electric system.

  • An experimental study of the effects of non-sinusoidal currents on the registration of induction watthour meters

    It is known that the registration of the induction disk watthour meter (WHM) is sensitive to the waveform of the metered current. The authors report an experimental study to determine the registration errors of induction disk WHMs for three cases of nonsinusoidal current waveforms. These cases are: (1) full- wave, phase-delayed sine wave; (2) full-wave, phase-delayed square wave; and (3) full-wave, battery charger wave. In all cases the voltage to the WHMs was sinusoidal. Four WHMs were tested, two manufactured by Sangamo Electric Company and two manufactured by Duncan Electric Company. These instruments were connected for 120 V operation with a class current of 10 A. An electronic WHM was used as a standard for the tests. Registrations of the test WHMs exceeding the readings of the standard are considered to be positive errors. It was found that the nonsinusoidal currents resulted in WHM errors that were generally positive and as great as 7%. The error characteristics of the four WHMs were consistent.<<ETX>>

  • IEE Colloquium on 'Metering Standards and Directives' (Digest No.075)

    None

  • Seventh International Conference on Metering Apparatus and Tariffs for Electricity Supply (Conf. Publ. No.367)

    None

  • ANIST Testbed for Examining the Accuracy of Smart Meters Under High Harmonic Waveform Loads

    Household and industrial electrical energy measurements are advancing into a Smart Grid stage, using solid-state watt-hour meters, called smart meters. As electrical products are also becoming more based on solid-state designs, such as LED lighting and dimmers, electrical loads are not purely resistive, but contain voltage and current spikes. This paper describes a testbed laboratory that will attempt to model LED household lighting loads, and correlate the energy measurements for changes in accuracy by various kinds of smart meters under unusual loads.

  • A Method of Deriving Overall Accuracy for Single Phase Watthour Meters

    The ANSI Standard equation for overall accuracy places a small amount of emphasis on light load accuracy for watthour meters. Results from a recent load research study indicated a significant amount of energy is accumulated at lighter loads where watthour meter accuracy is poorer. Perhaps the standard equation for overall accuracy is a consensus of opinions prior to utilities performing load research studies. Although small inaccuracies of watthour meters at lighter loads may seem insignificant, they become large when applied to an entire meter population. ANSI C12.1-1982 may be interpreted to mean that 20% of all energy registration occurs at light load. The results of a load research study show that watthour meters spend a great deal of time at light loads. A method was developed to establish at which loads watthour meters register energy consumption. Watthour meters spent 85% of the time and registered more than 40% of the total energy for a one year period at light loads.




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