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 business, or an electrically powered device. Pdf a prototype design for three phase smart energy meter. It is the popularly known and most common type of age old watt hour meter. Hence it is the working of induction type energy meter, adjustment of induction type energy meter. This is used in each and every house and industry for calculating the energy consumed by them. The total energy is the sum of the reading of both the elements. Threephase and singlephase energy meters, highquality pdf. Solenoids or capacitors, which are passive type elements induce reactive power. 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 industrial world. A 3phase energy meter has same elements as in case of a singlephase energy meter. It consists of rotating aluminum disc mounted on a spindle between two electro magnets.
The three phase meter is constructed by connecting the two single phase meter through the shaft. The energy meters are classified into two basic categories, such as. This paper presents design and construction of a threephase smart energy meter. Thus we need an integrating instrument which can measure and record the energy consumed by the load under varying load condition. Single phase induction type energy meter is also popularly known as watthour meter. The basic principle of induction type energy meter is electromagnetic induction. To comply with din vde 0100443 and din vde 0100534, a type 2 or type 3 surge. These two fluxes lag by 90 degrees due to inductive nature. This is the basic principle of working of an induction type meters. Overview of single phase induction type energy meter. This article focusses only on its constructional features and its working. There are four main parts of the operating mechanism of single phase induction type. In all induction meters we have two fluxes which are produced by two different alternating currents on a metallic disc. The three phase energy meter was implemented in the laboratory with a current of up.
Rs485 bus two way threephase energy meter dsz14wdrs3x5a mid. Installation manual three phase energy meter inogate. Working of induction type energy meter series magnet produces the flux which is proportional to the current flowing and shunt magnet produces the flux proportional to the voltage. Energy meters are classified into two types by taking the following factors into considerations.
Now there are two types of induction meters and they are written as follows. When alternating current flow though two suitably located coils produces rotating magnetic field which is cut by the metallic disc suspended near to the coils thus emf induce in the disc which is circulates eddy current in it. The basic working of single phase induction type energy meter is only focused on two mechanisms. Working of single phase induction type energy meter. Study of single phase induction type energy meter or watt. Also, three phase meters are different from single phase meters, so the meter needs to be replaced. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter.
Due to alternating fluxes there is an induced emf, the emf produced at one. The principle of working and construction of induction type meter is very simple and. The meter is designed to overcome the defects of mechanical meters such as moving parts. An energy meter is used to measure the energy consumed in the kilowatt hours. Technical like three phases, single phase, ht, lt and accuracy class meters. Implementation of a threephase electronic watthour meter using. The simplest such instrument is single phase induction type energy meter.
What is the solution for the drawbacks of commonly used energy meters. Neutral n are interchangeable and are indicative of ac mains voltage source from the energy utilities. Single phase induction type energy meters electrical. Single phase induction type energy meter construction,working principle,operation,creeping,torque equation the measurement of energy is the same process as measurement of power except that the instrument not merely indicates the power or rate of supply of energy but must take into account also the length of time for which the rate of energy is. Pdf this paper presents design and construction of a threephase smart energy meter. Mechanism of counting and displaying the amount of energy transferred. Electronic single phase watthour meter adopts largescale ic, the latest microelectronic technologies and smt techniques. If you require two or more electricity meters then you need a three phase connection. Here we are going to discuss the singlephase induction type in detail. What are the advantages and disadvantages of usual energy meters.
1478 60 471 849 703 334 278 1498 888 1040 858 185 645 1384 1265 753 586 475 1531 635 141 1323 111 32 347 773 778 492 161 329