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Aluminium is a good conductor but it is non magnetic material and therefore cannot be altered by magnetic currents and run true and hence it is preferred.
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Working of single phase energy meter?
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.The most common type is a kilowatt hour meter. When used in electricity retailing, the utilities record the values measured by these meters to generate an invoice for the electricity. They may also record other variables including the time when the electricity was used.Modern electricity meters operate by continuously measuring the instantaneous voltage (volts) and current (amperes) and finding the product of these to give instantaneous electrical power (watts) which is then integrated against time to give energy used (joules, kilowatt-hours etc). The meters fall into two basic categories, electromechanical and electronic.Electromechanical metersThe most common type of electricity meter is the Thomson or electromechanical induction watt-hour meter, invented by Elihu Thomson in 1888.[1][2]Technology The electromechanical induction meter operates by counting the revolutions of an aluminum disc which is made to rotate at a speed proportional to the power. The number of revolutions is thus proportional to the energy usage. It consumes a small amount of power, typically around 2 watts.The metallic disc is acted upon by two coils. One coil is connected in such a way that it produces a magnetic flux in proportion to the voltage and the other produces a magnetic flux in proportion to the current. The field of the voltage coil is delayed by 90 degrees using a lag coil. [1]This produces eddy currents in the disc and the effect is such that a force is exerted on the disc in proportion to the product of the instantaneous current and voltage. A permanent magnet exerts an opposing force proportional to the speed of rotation of the disc - this acts as a brake which causes the disc to stop spinning when power stops being drawn rather than allowing it to spin faster and faster. This causes the disc to rotate at a speed proportional to the power being used.The type of meter described above is used on a single-phase AC supply. Different phase configurations use additional voltage and current coils.ReadingThe aluminum disc is supported by a spindle which has a worm gear which drives the register. The register is a series of dials which record the amount of energy used. The dials may be of the cyclometer type, an odometer-like display that is easy to read where for each dial a single digit is shown through a window in the face of the meter, or of the pointer type where a pointer indicates each digit. It should be noted that with the dial pointer type, adjacent pointers generally rotate in opposite directions due to the gearing mechanism.The amount of energy represented by one revolution of the disc is denoted by the symbol Kh which is given in units of watt-hours per revolution. The value 7.2 is commonly seen. Using the value of Kh, one can determine their power consumption at any given time by timing the disc with a stopwatch. If the time in seconds taken by the disc to complete one revolution is t, then the power in watts is . For example, if Kh = 7.2, as above, and one revolution took place in 14.4 seconds, the power is 1800 watts. This method can be used to determine the power consumption of household devices by switching them on one by one.Most domestic electricity meters must be read manually, whether by a representative of the power company or by the customer. Where the customer reads the meter, the reading may be supplied to the power company by telephone, post or over the internet. The electricity company will normally require a visit by a company representative at least annually in order to verify customer-supplied readings and to make a basic safety check of the meter.AccuracyIn an induction type meter, creep is a phenomenon that can adversely affect accuracy, that occurs when the meter disc rotates continuously with potential applied and the load terminals open circuited. A test for error due to creep is called a creep test.
What are the parts of steam turbine?
Steam turbine is a machine that extracts thermal energy from pressurized steam. It is made up of casing essential to which the blades are attached onto it and a rotor that carries the moving blades.
What is the rotor of an electric motor made of?
Metal. The central part of the rotor is generally made of steel or other high strength material. The coils of wire that create the magnetic fields, and thus power the motor, are almost universally copper, due to its high conductivity.
When was the Volt Meter invented?
Voltmeters were made possible by an 1819 discovery by Hans Oersted. The first voltmeter were made soon after that.
How is electrical energy made from an alternative form of energy?
There are different types of energy that are considered "alternative". The details depend on the type of energy.
Why is rotor in energy meter made of aluminum why not copper?
Aluminum is much lighter than copper and has a lower conductivity which makes it easier for it to create more force. It is also much cheaper than copper.
What are the various test made before the installation of energy meter?
The various tests that are made before the installation of an energy meter are completed to ensure the safety and accuracy of the meter. These tests include EMC, vibration and core meter accuracy testing.
How is a fly wheel manufactured and what is it made off?
A flywheel is made basically like a brake rotor, and the clutch disc is made like brake pads. The spinning flywheel is pressed against the clutch disc, which is made of hard steel--the idea being to get the clutch side of the trans to spin.
Is their a inner drum for the e-brake on rear disc brakes for a 2001 Chevy silverado?
Yes there is, But it's made onto the back of the rotor and it is all 1 piece.
How the rotor is made to turn in a helicopter?
The engine is driving a transmission which turns the rotor
Where was the helicopter rotor made?
The helicopter was made in China.
Who made the meter a meter?
me!
Working of single phase energy meter?
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.The most common type is a kilowatt hour meter. When used in electricity retailing, the utilities record the values measured by these meters to generate an invoice for the electricity. They may also record other variables including the time when the electricity was used.Modern electricity meters operate by continuously measuring the instantaneous voltage (volts) and current (amperes) and finding the product of these to give instantaneous electrical power (watts) which is then integrated against time to give energy used (joules, kilowatt-hours etc). The meters fall into two basic categories, electromechanical and electronic.Electromechanical metersThe most common type of electricity meter is the Thomson or electromechanical induction watt-hour meter, invented by Elihu Thomson in 1888.[1][2]Technology The electromechanical induction meter operates by counting the revolutions of an aluminum disc which is made to rotate at a speed proportional to the power. The number of revolutions is thus proportional to the energy usage. It consumes a small amount of power, typically around 2 watts.The metallic disc is acted upon by two coils. One coil is connected in such a way that it produces a magnetic flux in proportion to the voltage and the other produces a magnetic flux in proportion to the current. The field of the voltage coil is delayed by 90 degrees using a lag coil. [1]This produces eddy currents in the disc and the effect is such that a force is exerted on the disc in proportion to the product of the instantaneous current and voltage. A permanent magnet exerts an opposing force proportional to the speed of rotation of the disc - this acts as a brake which causes the disc to stop spinning when power stops being drawn rather than allowing it to spin faster and faster. This causes the disc to rotate at a speed proportional to the power being used.The type of meter described above is used on a single-phase AC supply. Different phase configurations use additional voltage and current coils.ReadingThe aluminum disc is supported by a spindle which has a worm gear which drives the register. The register is a series of dials which record the amount of energy used. The dials may be of the cyclometer type, an odometer-like display that is easy to read where for each dial a single digit is shown through a window in the face of the meter, or of the pointer type where a pointer indicates each digit. It should be noted that with the dial pointer type, adjacent pointers generally rotate in opposite directions due to the gearing mechanism.The amount of energy represented by one revolution of the disc is denoted by the symbol Kh which is given in units of watt-hours per revolution. The value 7.2 is commonly seen. Using the value of Kh, one can determine their power consumption at any given time by timing the disc with a stopwatch. If the time in seconds taken by the disc to complete one revolution is t, then the power in watts is . For example, if Kh = 7.2, as above, and one revolution took place in 14.4 seconds, the power is 1800 watts. This method can be used to determine the power consumption of household devices by switching them on one by one.Most domestic electricity meters must be read manually, whether by a representative of the power company or by the customer. Where the customer reads the meter, the reading may be supplied to the power company by telephone, post or over the internet. The electricity company will normally require a visit by a company representative at least annually in order to verify customer-supplied readings and to make a basic safety check of the meter.AccuracyIn an induction type meter, creep is a phenomenon that can adversely affect accuracy, that occurs when the meter disc rotates continuously with potential applied and the load terminals open circuited. A test for error due to creep is called a creep test.
How does an EMF meter help ghost hunting?
Ghosts are made up of a lot of energy and with a ElectroMagnetic Fhenomena detector, it can pick up on unnatural readings of energy anywhere
How is the rotor made to turn the helicopter and in an autogyro?
The rotor turns on top of a vertical shaft from the transmission
What are disc brakes made of?
Depending on the car, some disc brakes are made of steel, aluminum or carbon fiber.
What is the phaistos disc made of?
they are made of island creye
