The number of rotations of the disk is therefore proportional to the energy consumed by the load in a certain time interval and is commonly measured in kilowatt-hours Kwh. When connected to measure energy, if disc makes R number of revolution in t seconds.
Another advantage of smart metering is complete avoidance of tampering of energy meter where there is scope of using power in an illegal way. Mechanism of rotation of an aluminum disc which is made to rotate at a speed proportional to the power. Shaft is pivoted on jewel bearings and Induction type energy meter pinion engages it with counting or registering mechanism.
The number of pulses indicates energy metered. Moving system Consist of an aluminum disc Induction type energy meter on a light alloy shaft positioned in the air gap between magnets. Given below is the picture of single phase induction type meter. Furthermore it interacts with liquid crystal display LCDcommunication devices and other meter outputs.
Some industrial meters use a protocol for programmable logic controllers Modbus or DNP3. The processing and communication section has the responsibility of calculating the various derived quantities from the digital values generated by the metering engine. When a customer is generating more electricity than required for his own use, the surplus may be exported back to the power grid.
Depending on the arrangements in place, the meter may be the property of the meter Operatorelectricity distributorthe retailer or for some large users of electricity the meter may belong to the customer.
Full load unity power factor adjustment and low power factor adjustment Rated voltage applied to pressure coil. Using the theory of induction watt-meter. The spindle is geared to the recording mechanism so that electrical energy consumed in the circuit is directly registered in KWh.
Narcotics detectives associate abnormally high power usage with the lighting such operations require. Substations, inter-ties, and transformers normally have a high-accuracy meter for the area served.
This requires a " smart grid ," which includes meters that measure electricity via communication networks that require remote control and give customers timing and pricing options.
Characterising and compensating for these is a major part of meter design. It is to be noted that the spring control and pointer of the watt-meter have been replaced in the energy meter by a brake magnet which provides braking torque as explained above.
Single-phase induction kilowatt hour meter - Construction An adjustable copper shading rings are provided on the central limb of the shunt magnet to make the phase angle displacement between magnetic field set up by shunt magnet and supply voltage is approximately 90 degree.
Automatic meter reading can be done with GSM Global System for Mobile Communications modems, one is attached to each meter and the other is placed at the central utility office. In some countries, if the retailer believes that the customer may not pay the bill, a prepayment meter may be installed.
Prepayment meters[ edit ] Prepayment meter and magnetic stripe tokens, from a rented accommodation in the UK. Such meters can help in energy conservation by identifying major energy users, or devices that consume excessive standby power. Energy consumed in seconds Example 9.
End applications like domestic, commercial and industrial.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.
Electro-mechanical type- The electro-mechanical induction meter operates by counting the revolutions of a non-magnetic, but electrically conductive, metal disc which is made to rotate at a speed proportional to the power passing through the meter.
The number of revolutions is thus proportional to the energy usage. Single phase Energy meter. Single phase Energy meter single phase induction type energy meter is also popularly known as watt-hour meter.
This name is given to it. Single phase induction type energy meter consists of four important systems which are written as follows: Driving System: Driving system consists of two electromagnets on which pressure coil and current coils are wounded, as shown above in the diagram.3/5(1).
Induction type single phase energy meter. current coil and is connected in one of the lines and in series with the load to be metered. The series electromagnet is energized and sets up a magnetic field cutting through the rotating. Filed Under: Electrical Tagged With: Digital energy meter, Electronic energy meters, Energy meter, Induction type energy meter, Types of energy meters About Tarun Agarwal Tarun Agarwal is the Chief Customer Support Officer at Edgefx Technologies Pvt Ltd.Download