Design and implementation of wireless energy meter system. Energy meter is an instrument which measures electrical energy. The ade7953 is a high accuracy electrical energy measurement ic intended for single phase applications. Single phase energy meter theory pdf download mastercard downlood triber vodafon author. By implementing the watthour meter, we can know how much amount of electrical energy is used by a consumer or a residence or an electrically powered device or a business. Single phase, multifunction metering ic with neutral. The three phase meter is constructed by connecting the two single phase meter through the shaft. The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. The red wire shows the live or line or phase and the blake shows the neutral wire. Procedure for calibration and testing of single phase energy meter. They are typically calibrated in billing units, the most common one being the kilowatt. The product of i and v of which phase shift angle of. Implementation of a singlephase electronic watthour. Therefore, this type of meter is also called anintegrating meter.
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. A single phase energy meter is electrical meter used to measure the amount of electrical energy consumed by electrical devices, residences and business the basic working of single phase induction type energy meter is only focused on two mechanisms. The unit is 1 var energy a is called passive energy a reactive qt. Socket switching actuator fsva230v10a with current measurement. The unit is 1 vars for sampled data voltage and current.
Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. Real true energy, instantaneous power, irms, and vrms for single phase 2 or 3wire power metering applications. The device incorporates three adcs with a high accuracy energy measurement core. Presented here is a simple energy meter using analog devices ade7757 chip for single phase, 2wire phase and neutral systems used in households. To enable a registration process for future upgrades of the energy meter, the documentation package is delivered with an rid and pic label. Technical data singlephase energy meter, threephase meters and energy. It is used in domestic and industrial ac circuit for measuring the power consumption. The reading on the 3ph meter would equal the sum of the three separate readings on the single phase meters. Here we discuss the construction and working principle of induction type energy meter.
Electromechanical energy meters have been the standard for metering the electricity since billing began. In the above diagram, i shown an utility pole form which i get supply to kilowatt hour e meter and after that i get supply form energy meter. It uses ad7755, a single phase energy measurement ic to acquire and process the input voltage and current parameters. Drm121, mqxenabled mcf51em256 singlephase electricity meter. The torque of both the elements is added mechanically, and the total rotation of the shaft is. F, a single phase microcontroller based energy meter, ieee instrumentation and measurements technology conference st. The neutral sides of the single phase meters do not need to be connected to the neutral.
In the diagram i start form utility pole to the energy meter. This evm has builtin support for measuring ac voltage, current, active power, reactive power, apparent power, frequency, power factor, dc. Electrical information of the meter is displayed on the name plate such as the type of connection, voltage, current, frequency, etc. The basic working of single phase induction type energy meter is only focused on two mechanisms. Threephase and singlephase energy meters, highquality pdf. Single phase energy meter theory pdf download mastercard. Conzerv energy meters keep all your energy consumption patterns and machineefficiency on track with schneider electrics modern and technologically advanced conzerv energy meters. Therefore, this type of meter is also called an integrating meter. A simple capacitive power supply for the msp430 energy meter appropriate values of resistor r22 and capacitor c49 are chosen based on the required output current drive of the. However the meter should withstand the maximum system voltage. What are the advantages and disadvantages of usual energy meters. Below are the the connections diagrams for installation of a single phase 3 phase, 4 wire kwh meter digital or analog energy meter from the supply to the main distribution board in home. Construction driving system, moving system, braking syatem, and registering system 4.
The one phase harmonic analyzer graphic power quality analyzer is used for single phase or three phase measurements of active, reactive and apparent power, power factor, phase angle, energy, voltage, current as well as peaks and harmonics. One single phase energy meter, one single phase load, stop watch and connecting wires. The rotation of metallic disk is operated by two coils. It measures line voltage and current and calculates active, reactive, and apparent energy, as well as instantaneous rms voltage and current. Wiring of the distribution board from energy meter to the. Below energy meter diagram i shown a single phase kwh meter with incoming supply and out going supply to home, collage, shop etc. Electromechanical type the electromechanical induction meter operates by counting the revolutions of a nonmagnetic, but electrically conductive, metal disc which is made to rotate at a speed pro. Overview of single phase induction type energy meter. Mechanism of counting and displaying the amount of energy transferred. The energy is the total power consumed and utilised by the load at a particular interval of time. An electric meter or energy meter is a device that measures the amount of electrical energy supplied to or produced by a residence, business or machine. Energy meter circuit detailed project with source code. What is the solution for the drawbacks of commonly used energy meters.
Implementation of a threephase electronic watthour meter using. Watthour meter is in fact a measuring device which can evaluate and records the electrical power passing through a circuit in a certain time. But these are now being gradually replaced by electronic digital energy meters. The 1 phase power meter pcegpa 62 graphic power quality analyzer with network analyzer power and energy meter with data logger. Two standard current sensing circuit implementations shunt resistor and ct. 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. It is designed to accurately measure and calculate.
The voltage and currents of the power line are rated down to signal level using transducers like voltage and current transformers and given to that ic as shown in the figure. Grid meter, and used as control input for an ess system 1. C to the pressure coil circuit by means of phase shifting transformer. Phasor diagram of single phase induction type energy meter 6. Mechanism of rotation of an aluminum disc which is. Single phase energy meter hxe12kp hexing electrical co. Each voltage phase is referred to the neutral and has 120 phase difference with the other phases see figure 2. Star delta starter explained working principle duration. Principle wem monitors the energy consumption for a single phase supply. This design implements a highaccuracy single phase embedded energy measurement application using msp430afe253. Energy meter wiring in the above diagram i taken electric supply form utility pole to single phase energy meter and then i get supply to them distribution main board. To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. Calibration and testing of singlephase energy meter.
Single phase energy meter working of single phase induction. Two and threeelement meters are simply two or three single elements having a common shaft and register, which serve to totalize the energy measured by each element. So lets disuse the distribution board wiring diagram step by step. When the energy meter is connected in circuit, the current coil carries the load current and pressure coil carries the current proportional to the supply voltage. Mechanism of rotation of an aluminium disc which is made to rotate at a speed proportional to the power. How to wire single phase kwh energy meter electricalonline4u. Appropriate values of resistor r22 and capacitor c49 are chosen based on the required output current drive of the power supply.
The cs5460a interfaces to a lowcost shunt resistor or transformer to measure current, and to a resistive divider or potential transformer to measure voltage. 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 electric utilities use electric meters installed at customers premises for billing and monitoring purposes. Electrical energy meters principles and applications. Working principle and construction of energy meter video lecture of measurement of capacitance chapter in subject electronic instrumentation. This document is the manual for the single phase max 100 a energy meter. Static meters for active energy classes 1 and 2 iec6205331 electricity metering equipment a. It is used everywhere, no matter how big or small consumption it is. The total energy is the sum of the reading of both the elements. Arrangement of counting and displaying the amount of energy consumed. In a single phase utility grid, connect the line conductor l1 and the neutral. Direct connection, either using the rs485 to usb interface with 1.
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. Study the construction and working of single phase energy. Figure 3 shows a simple capacitor power supply for a single output voltage of 3. Manual for modbus multifunctional metering devices and energy. Energy meters are the basic part to measure the power consumption. This section describes the hardware for the design of a working 3phase energy meter that uses the. The working of single phase induction type energy meters are based on two main fundamentals. Note down the reading of two meters in a given period of time, say 2 minutes.