Types of energy meters and their working principles. Based on the flow of current, the ferriwheel rotates which makes rotation of other wheels. It is used in domestic and industrial ac circuit for measuring the power consumption. Utilities are one of the electrical departments, which install these instruments at every place like homes. Electronic energy meter is based on digital micro technology dmt and uses no moving parts. If all signal content was at the line frequency then in theory a second. What is the working principle of energy meter answers. The principle of working and construction of induction type meter is very simple and easy to understand thats why these are widely used in measuring energy in domestic as well as the industrial world. Technical specifications for single phase electronic energy meter of. A second terminal block between the current transformer and the meter simplifies service work. 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 working principle of an electronic energy meter is a device that measures the electronic energy consumed usually in kwh. Principle of operation of the meter, outlining the methods and stages of. Pdf on oct 1, 2018, romuald masnicki and others published what should be measured. Below are the the connections diagrams for installation of a singlephase 3phase, 4 wire kwh meter digital or analog energy meter from the supply to the main distribution board in home. The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. Practical papers, articles and application notes static energy meter. Pdf static, or electronic, energy meters are replacing the conventional electromechanical meters. Here we discuss the construction and working principle of induction type energy meter. The principle of generating the test signal of the static. Revised july 1996 read specification for ac static electrical energy meters. Electrical energy meters principles and applications energy management. It is used everywhere, no matter how big or small consumption it is. Energy meter or watthour meter is an electrical instrument that measures the amount of electrical energy used by the consumers.
The single phase electrical energy meter principle block diagram is shown in fig. It has a rotating aluminium wheel called ferriwheel and many toothed wheels. Handbook on electricity meters asiapacific economic cooperation. In all induction meters, we have two fluxes which are produced by two different alternating currents on a metallic disc. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation.
Single phase energy meter theory pdf download mastercard. The energy is the total power consumed and utilised by the load at a particular interval of time. Electrical energy meters principles and applications. To reduce power con sumption in the meter chip itself the sample rate can be re duced. Energy meters are the basic part to measure the power consumption. What is the differance between digital energy meter. The meter shall draw power for working of electronic circuit from phase and neutral. The use of a static electrical energy meter as a transducer of active. Trivector meter is an energy meter which accurately measures all the parameters of supply such as voltage, current, power factor, active load, reactive load, apparent load etc. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures the amount of electric energy consumed by a residence, a. Pdf static energy meter errors caused by conducted. The meter should be suitable for working with following supply system variations. The conventional mechanical energy meter is based on the phenomenon of magnetic induction.
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