Single phase power energy meter calibrator is used for calibration of energy meters, wattmeters, va meters, var meters, pf meters. A calibration service for wattmeters and watthour meters. Pic18f87j72 singlephase energy meter calibration users. After turning on the meter, wait 3 to 5 seconds before use to allow builtup energy to discharge. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e. Give the connections as per the circuit diagram above. Fast digital calibration procedure for stpm01 based energy.
Highaccuracy laser power and energy meter calibration service. The electrode should never be rinsed in the same buffer beaker that will be used for calibration. Now calibration of energy meter means configuring your meter to rea. This allows the user to run the meter for a userdefinable period of time, so that the energy meter can reach a suitable operating temperature, prior to testing. Livigni national institute of standards and technology boulder, co 80303 this document describes the highac curacy laser power and energy meter calibration service provided by the national institute of. The largest incident value of solar power is obtained when the end of the meter faces the sun directly. It is used in domestic and industrial ac circuit for measuring the power consumption. The gf302d1 three phase portable energy meter test system consists of an integrated three phase current and voltage sourceup to 500v120a or 500v20a and builtin threephase electronic. Smart meters differ from regular home energy monitors in that they can send data to the energy company while regular energy meters cannot.
When the end of the meter does not face the sun, the incident solar power is reduced by the cosine curve of the angle to the sun. It is reliable and accurate hence it has demand in calibration testing laboratories, power energy meter manufacturers. The meter demonstrates registration accuracy in accordance with the accuracy requirements of section 2. Calibration is a process of elimination of errors by configuring an instrument to provide a result within an acceptable range. But these are now being gradually replaced by electronic digital energy meters.
Attached is a certificate of calibration for the powerlogic energy meter. In every residence, malls, industry, everywhere energy meters are used to measure the electrical energy consumed. Nov 17, 2017 the gf302d1 three phase portable energy meter test system consists of an integrated three phase current and voltage sourceup to 500v120a or 500v20a and builtin threephase electronic. This type of metering and data logging gives a unique method for measurement of all. Calibration method for digital energy meters in digital. Calibration led the focus kwh has an infrared light emitting diode led that emits energy pulses. Calibration and testing of singlephase energy meter. This calibration steps exist electric energy meter power jump difference cause calibration after the big. Using the 6100a electrical power standard to calibrate energy.
Singlephase kwh meter calibrator accuracy calibration. This together with a data collecting device dcd and a local computer forms a powerful system of metering and data logging. Cn106154207a electric energy meter error quick calibration. Energy meter circuit detailed project with source code. During installation and commissioning, icd conducts complete calibration and testing of energy meters. Procedure for calibration and testing of singlephase energy meter. Each voltage phase is referred to the neutral and has 120 phase difference with the other phases see figure 2. There are several other such laboratories under the control of government departments such as the. Detailed analysis of power and energy calibration errors. For the low electric energy meter of required precision, generally use calibration of power mode, i. Today there is a better way to run this cali bration. Mar 28, 2017 induction type single phase energy meter.
Those consumers which consume large energy needs better technology to manage their energy consumption and need more data to improve their services. Remote calibration system of a smart electrical energy meter. The first section details the calibration procedure, providing equations and examples of. C to the pressure coil circuit by means of phase shifting transformer. This application note describes how to calibrate the ade71xx. The user can set voltage, current, frequency, power factor etc. This document discusses the interpretation and basis for stated measurement accuracy of ophir laser power energy meters.
Every meter which is being used to measure electrical energy for the first time is calibrated or is covered by a conformity evaluation in line with european mid m easuring i nstruments d irective guidelines. Note down the reading of two meters in a given period of time, say 2 minutes. It is reliable and accurate hence it has demand in calibration. Calibration of ac energy meter using reference energy meter. Utilities are one of the electrical departments, which install these instruments at every place like homes, industries, organizations, commercial buildings to charge for the electricity consumption by loads such as. Testing and calibration of electricity meters in india. Power and energy calibrationkey test and measurement issues. If a meter is used in combination with a current transformer. Highaccuracy laser pow er and energy meter cali bration servi ce david j. Measurement of 3 phase power with single watt meter and 2 nos of c. There are three official calibration laboratories available worldwide for laser power meters and laser energy meters from genteceo. Pdf lowcost energy meter calibration method for measurement. Engineers working onsite test the accuracy of every energy meter and multifunction meters by using a standard reference meter of a better accuracy than meter being tested. In this report, we describe the calibration methods, systems, and uncertainties in the frequency range 100 khz to 110 ghz.
The calibration system has the expanded uncertainty of 0. Remote calibration system of a smart electrical energy meter article pdf available in journal of electrical systems 4. Pdf remote calibration system of a smart electrical energy. Electromechanical energy meters have been the standard for metering the electricity since billing began. Understandingiso17025forlaserpowerandenergymeasurement formfirst. This display should show the amount of energy consumed in kwh k ilowatt hours. The traditional calibration methods for analog energy meters are not applicable to digital energy meters. Calibration of single phase energy meter using phantom loading method with rss meter as standard.
Energy meter testing, energy meter repairing, energy meter. Calibration and testing of single phase energy meter. Technical note ph calibration procedure for optimal. After the final assembly phase, an energy meter requires a calibration procedure due to unknown sensitivities of its following blocks. Pic18f87j72 singlephase energy meter calibration users guide 2011 microchip technology inc. Customers need to know whether the powerlogic energy meter requires periodic calibration. Energy meter testing, energy meter repairing, energy meter calibration, energy meter certification, energy meter servicing, mumbai, india. The ade7754 is comprised of six adcs, a reference circuit, and all the signal processing necessary for the calculation of active energy, apparent energy, and rms. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. A calibration service for wattmeters and watthour meters author. Energy meters that are installed within and according to the specifications of the installation document.
One convenient and simple way to interface the ade7754 to a display or energy register is to use a microcontroller mcu that reads on e of the active energy registers, e. The energy is the total power consumed and utilised by the load at a particular interval of time. Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. All multifunction meters are tested once in 3 years. Energy meter testing, energy meter repairing, energy meter calibration, energy meter certification, energy meter servicing, mumbai, india wowslideshow by v8. Portable energy meter calibrator available including three phase, single phase meter test equipment. Apr 23, 2017 to calibrate ac energy metet using reference energy meter in an easy way.
In fact, it impacts directly on accuracy, cost, manufacturability and reliability of the meter. Electrical energy meters principles and applications. These standards support applications of lasers in manufacturing, electronics, medicine, communications, and the military, among other fields. Pdf the measurement of the electrical energy and its billing for tax purpose are of great relevance. Pdf on the remote calibration of electrical energy meters. The nist laser power and energy calibration project develops and maintains the u. Pic18f87j72 singlephase energy meter calibration users guide. Lowcost energy meter calibration method for measurement and verification. It is not possible for an individual unaffiliated with the utility company to calibrate the smart meter.
Fast digital calibration procedure for stpm01 based energy meters. Digital energy meters are used in digital substations to measure electric energy, which receive iec 61850 digital input. Highaccuracy laser power and energy meter calibration. Using the 6100a electrical power standard to calibrate. Microchip energy meter software provides a detailed description of features of the calibration software tool, which is provided with the single.
711 794 1323 1326 105 126 1213 887 307 37 410 751 1041 688 1211 575 201 745 147 282 387 35 1378 52 1197 154 533 676 1072 606 1094 515 392 1345 807