What is meant by energy meter?

What is meant by energy meter?

An electric meter, or energy meter, is a device that measures the amount of electric energy consumed by a building, tenant space, or electrically powered equipment. Electric utilities use electric meters installed at customers’ premises to measure electric energy delivered to their customers for billing purposes.

What are the different types of energy meter?

Basically three types of energy meters are present.

• Electro Mechanical Induction Type Energy Meter. It consists of rotating aluminum disc mounted on a spindle between two electro magnets.
• Electronic Energy Meter.
• Smart Energy Meters.

What is energy meter explain with diagram?

Definition: The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. The energy is the total power consumed and utilised by the load at a particular interval of time. It is used in domestic and industrial AC circuit for measuring the power consumption.

Why is energy meter important?

Electric metering is an extremely effective way to measure how much we use; that way, we know how much everyone should be paying in concordance with how much they are using, so that everyone can provide their fair share, and the most amount of people can also receive their fair share.

What is the unit of energy meter?

kWh
The most common unit of measurement on the electricity meter is the kilowatt hour [kWh], which is equal to the amount of energy used by a load of one kilowatt over a period of one hour, or 3,600,000 joules. Some electricity companies use the SI megajoule instead.

What are main parts of energy meter?

The components of this system are two silicon steel laminated electromagnets. The upper electromagnet is called shunt magnet and it carries a voltage coil consisting of many turns of thin wire. The lower electromagnet is called series magnet and it carries the two current coils consisting of a few turns of thick wire.

What is basic current of energy meter?

The basic current (Ib) for this meter is selected as 5 A and the current range for accuracy will be 2% of Ib to IMAX, or a dynamic range of 400:1 (75 mA to 30 A). The electromechanical register (kWh) will have a constant of 100 imp/kWh, i.e., 100 impulses from the ADE7757 will be required to register 1 kWh.

What are the major parts of energy meter?

What type of meter is energy meter?

The energy meters are classified into two basic categories, such as: Electromechanical Type Induction Meter. Electronic Energy Meter.

What is the specification of energy meter?

The meter should be suitable for full power factor range from zero (lagging) through to Unity to zero (leading). The meter should be suitable for working with following supply system variations. 7.1 Class of accuracy of the meter should be 1.0. The accuracy should not drift with time.

What is current rating of energy meter?

Current Rating 5-30 Amp. with Backlit LCD Display for 240 Volt System fitted with Pilfer Proof Meter Box.

What is smart meter PDF?

Smart meter is an advanced energy meter that measures electrical energy consumption and provides additional information as compared to a conventional energy meter. It aims to improve the reliability, quality and security of supply.

What is an energy meter?

Definition: The meter which is used for measuring the energy utilises by the electric load is known as the energy meter. The energy is the total power consumed and utilised by the load at a particular interval of time. It is used in domestic and industrial AC circuit for measuring the power consumption.

How do you calculate the energy of a kWh meter?

ENERGY = (instantaneous power) x (time) W = p x t where W = energy p = instantaneous power t = time Electromechanical kWh meters sum power over time interval using a rotating disk. Number of revolutions, n, proportional to energy

What is the principle of induction energy meter?

The basic principle of induction energy meter is electromagnetic induction. A thin disc of aluminium (or copper) is pivoted between the two Shunt and Series magnets and cuts the fluxes of both the magnets (Fig. 1). Hence two eddy currents are induced in the disc.

What is the reading of wattmeter M1 and m2?

Example 7-4:The two-wattmeter connection shown below measures the power input to a load. The reading of wattmeter M1 is 5000 W and wattmeter M2 is 12,000 W. From these readings find: a.) Total active power absorbed, b.) total reactive power absorbed, c.) F