Jan 31, 2017 allows simple meter testing to take place in the field. It is used everywhere, no matter how big or small consumption it is. Open stop watch in your mobile and measure time of 10 pulses. 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 lights, fans, refrigerator. Emi emc considerations for energy meters application note, an4941, rev. Pdf testing of energy meters under threephase determined. All meter sockets, meter pedestals, group meter assemblies, and modular meter assemblies shall be listed by an independent testing agency such as ul for the specified voltage and amperage rating indicated, and carry the testing agencys listing mark. It is used in domestic and industrial ac circuit for measuring the power consumption. Measurement, calibration and evaluation of energy meters cpri. But these are now being gradually replaced by electronic digital energy meters. Energy meter testing procedure, energy meters testing. One single phase energy meter, one single phase load, stop watch and connecting wires. The offered product range is inclusive of energy meter calibration test set mts me 3.
Mike peters robert burgess pi, matt post, josh martin, jeff tomerlin, chris ainscough national renewable energy laboratory june 09, 2016. The integration of a mircocontroller and gsm short message service sms provides the meter reading system with automatic functions that are predefined. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Pdf electric energy meters are designed to account energy under sinusoidal and nonsinusoidal conditions, because both, old and new standards for. If a meter is used in combination with a current transformer. Basic working principle of all energy meters are same except disk type energy meter. Compact ultrasonic thermal energy meter go to the data sheet. Electrical energy meters principles and applications. The electromagnetic interference problem is very common today. Energy meter or watthour meter is an electrical instrument that measures the amount of electrical energy used by the consumers. Modern electricity meter safety, accuracy and performance testing. Radian research is a recognized world leader of energy reference standards, meter test boards, ct pt meter field testers, dc ac transfer standards, energy meter testing and our automated laboratory energy reference systems. In addition to lighting your home, it powers essential household items. Give the connections as per the circuit diagram above.
Energy meter testing jobs, 37897 energy meter testing. Energy meter is an electrical measuring device, which is used to record electrical energy consumed over a specified period of time in terms of units. Energy meter testing procedure, energy meters testing equipment, on line energy meter site testing, refixing of energy meter, mumbai, india. This presentation does not contain any proprietary, confidential, or otherwise restricted information. Pdf automatic energy meter reading using smart energy meter. The dial pointer rotates clockwise and anti clockwise on the dials. In order to test meters, particularly those of the 0. Since youre consuming electricity, theres a need to track and measure the consumption unit, thus creating a need for electric meter testing. An electromagnetic compatible test is the most important test which finally ensures the accuracy of the energy meter. Meter installation manualhxe310 4 18 1 general view figure 1. Energy meter is an instrument which measures electrical energy. Using the 6100a electrical power standard to calibrate energy. The portable single phase energy meter test bench is used for grid corporation of measurement and energy test center, management department of power supply bureau, national energy measurement of testing authorities, and also used to test each kind of single phase kwh meter of industries and mining. Energy meters are the basic part to measure the power consumption.
Testing methods optical scanner and calib led disk mark sensing based one energy at a time energy register based testing thru communication meter manufacturer specific can test multiple energy types together and save time. Metering best practices a guide to achieving utility resource efficiency gp sullivan. Four methods are in general use for metering the power or energy in 3phase circuits. Electric meter testing powermetrix innovative electric. Meter testing equipments, laboratory planning and set up. This is an example of a dial type kwh meter that you may see outside your home.
Energy meter circuit detailed project with source code. Utilities install these instruments at every place like homes, industries, organizations to charge the electricity consumption by loads such as lights, fans and other appliances. This test is fragmented in two parts one is emission tests, and the other is immunity test. Apply to 37897 energy meter testing jobs on, indias no. Energy meter testing july 25, 2018 february 24, 2012 by electrical4u we cannot think of life without electricity and when there is electricity consumption there is a need to measure its consumption. As an exporter and supplier of energy meter calibration test set mts me 3. Accelerated life testing laboratory altl used to conduct meter performance testing under stress conditions. Energy meter testing equipment single phase high precision. When it comes to energy meter testing equipment, safety is paramount. Energy meter testing, energy meter repairing, energy meter. The test results were in accordance with theoretical analyses. Many power utilities and energy meter manufacturers are availing test facilities at cpri. As disk type energy meters are obsolete there is no need to discuss them. Pdf smart energy meter nonofo ditshego, patrick mapulane.
Presented here is a simple energy meter using analog devices ade7757 chip for singlephase, 2wire phase and neutral systems used in households. Accurate testing of energy meters ensures quality and helps manufacturers comply with regulatory norms. Procedure for calibration and testing of singlephase energy meter. This is a lcd of an energy meter which is giving instantaneous power of 2574 watts. The rackmounted energy meter calibration test set mts me 3. Radian research power and energy meter testing equipment and. Eem testing under nonsinusoidal conditions has been in use for a long time 3, 4.
Ac voltag e insulation test is further divided in the following two tests. At the same time, you can see a led blinking on the right side which is also indicating the power usage of 2574 watts. Testing of energy meters under threephase determined and random especially the last group of tests reproduces actual operating conditions for eems. Building upon a subset of the entire suite of ansi tests, underwriters laboratories ul has layered on its version of safetyfocused meter tests as well in their own meter testing standard. How to check accuracy of energy meters engineer experiences. Watt hour meter or energy meter is an instrument which measures amount of electrical energy used by the consumers.
Each has its particular application, depending on whether the circuit is 3 or. Energy meter testing equipment myriad industrial solutions. Wd hunt r pugh wf sandusky tm koehler bk boyd august 2011. The arrow is left when the meter exports energy to power network. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation and measurement for electrical, electronics, extc. The energy is the total power consumed and utilised by the load at a particular interval of time. There are many types of energy meters having different working principle. Watthour meter maintenance and testing, january 1992. Therefore, this type of meter is also called an integrating meter. Electric energy meters are designed to account energy under sinusoidal and nonsinusoidal conditions, because both, old and new standards for energy meters require testing their accuracy under different conditions. The dials are the small circles on the front of the meter, this meter consist of fivedials. How to use energy meter testing equipment powermetrix. Hydrosonisup ultrasonic flow sensor go to the data sheet.
One unit equals one kwh killowatthour or watthours. Explore energy meter testing openings in your desired locations now. The energy meter thus determines and adds together or integrates all the instantaneous power values so that total energy used over a period is thus known. 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.
The latest en 50470 standard increases the range of meter testing under nonsinusoidal conditions, introducing. Hydrosplitm3 split thermal energy calculator for heatingcooling systems go to the data sheet. Jul 25, 2018 energy meter testing july 25, 2018 february 24, 2012 by electrical4u we cannot think of life without electricity and when there is electricity consumption there is a need to measure its consumption. Note down the reading of two meters in a given period of time, say 2 minutes. The electronic energy meter is also better protected against tampering than its mechanical predecessor, and units for prepaid operation e.
The basic unit used in measuring electric power is the watt, and 1,000 watts make a kilowatt choosing the right meter testing instrument will ensure the electricians are safe and they can complete the tests confidently. Manufacturer of energy meter testing equipment single phase high precision reference meter, three phase energy meter field calibrator, ratio and polarity test set and single phase portable energy meter testing equipment offered by akshyan power solutions private limited, delhi. Here, in this article lets just stick with the basics of energy meters. Using the 6100a electrical power standard to calibrate. This paper presents a smart energy meter for automatic metering and billing system. Facilities instructions, standards, and techniques volume 310. Facilities instructions, standards, and techniques volume 310 watthour meter maintenance and testing internet version of this manual created december 2000 facilities engineering branch denver office denver, colorado the appearance of the internet version of this manual may differ from the original, but the contents do not. Radian research power and energy meter testing equipment.
Working of single phase induction type energy meter. Basic environmental testing procedure for electrical and electronic items. Calibration and testing of singlephase energy meter. Here you use a ct meter to measure energy consumption. It is very useful for the quality of electrical energy meter testing and assessment. Calculate the number of revolutions made by it, when connected to. Radian research is 100% committed to exceeding the requirements of its customers through continual improvement of all. Radian research is 100% committed to exceeding the requirements of its customers through continual improvement of all our. Both ansi and ul provide a solid foundation for electricity meter.
Cpri is establishing energy meter testing lab at noida in near future. C to the pressure coil circuit by means of phase shifting transformer. Fully automatic the supply of energy to mut, synthesized waveform generator, power amplifiers based source. Electromechanical energy meters have been the standard for metering the electricity since billing began. Electronic energy meter is based on digital micro technology dmt and uses no moving parts. Emi emc considerations for energy meters application note. Mar 28, 2017 here, in this article lets just stick with the basics of energy meters.
Prepared by pacific northwest national laboratory for the federal energy management program. So the eem is known as static energy meter in eem the accurate functioning is controlled by a specially designed ic called asic application specified integrated circuit. The information could be printed according to requirements of power supply company. We are counted among the leading names for exporting and supplying of energy meter testing equipment from maharashtra, india. Shivakumar, engineering officer mridula jain, engineering officer central power research institute bangalore c p r i part 1 of 2. Over the years, yadav measurements has emerged as a trusted and valued type testing partner for various energy meter manufacturers and utilities. Portable energy meter calibrator available including three phase, single phase meter test equipment. Calculate the number of revolutions made by it, when connected to a load carrying 40 a at 230v and 0.