What would you like to do?

How does a watt-hour meter work?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

There are a couple of kinds of watt-hour meters: one is an electromechanical type (the one with the spinning wheel), and the other is a solid-state type. The solid-state types generally use a current transformer to measure the current produced in the current-carrying conductors, which means that the current carrying conductors need not be connected to the actual measuring device.) The electromechanical type uses an aluminum disc acted upon by two coils. One coil is positioned in such a way as to produce a magnetic flux in proportion to the voltage on the disc, and the other coil produces a magnetic flux proportional to the current. This causes the disc to rotate at a speed proportional to the power (voltage times current) being used. A permanent magnet is also installed in such a way as to exert an opposing force in proportion to the rotating speed of the disc. This causes the disc to slow down and stop when energy stops being used. The aluminum disc is also attached to a worm gear which drives the register.
92 people found this useful
Thanks for the feedback!

What does a watt meter do?

A watt is the electric unit of power. Amperage x voltage = watt. 746 watts is one horsepower. A wattmeter measures power.    Answer A wattmeter measures the voltage appli

Where can you get a watt meter?

A watt meter is what the power suppliers have on the side of your house to monitor the use of electricity going into your home. These can also be bought at electrical wholesal

What does 5c stand for?

The Iphone 5C is Iphone 5Colorful . 5c can also stand for the number 500 ("c" is the Roman numeralfor 100) or for 5 degrees Celsius (centigrade)

How do you work out square meters into meters?

If and only if you are working with a square, you get the square  root of the number

How does a tractor hour meter work?

The older cat hour meters that were mechanically driven off of the fuel pump counted RPM hours. The newer ones are an oil pressure switch and clock hour for hour time no matte

What is -5c in Fahrenheit?

23F

What are the 5Cs?

If you mean the 5 C's, like you learn in school and such, it's Cotton Citrus Copper Climate Cattle

What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory ie When the meter records watt-hour an when the meter records var hours?

Only watts (power) can produce work (energy) because of the phase relationship of the voltage and current in an alternating current, electric power system. With watts, the por
In Science

What is 5c in milliliters?

5cc? cc means cubic centimetres which is equal to ml, so 5ml. if you mean cl, then that is equal to 50ml
In Uncategorized

How does an hour meter on a mechanical tach work?

A mechanical tach will register 1 engine hour for every 100,000 revolutions.  At 1666.6 rpm it will register 1 hour for every hour run.  At 800 rpm it will take two hours of

Do skins for iPhone 5 lifeproof work for iPhone 5c lifeproof?

No, the skins won't fit. The iPhone 5 is 123.8 mm (4.87 in) high,  58.6 mm (2.31 in) wide and 7.6 mm (0.30 in) high. The iPhone 5c is  124.4 mm (4.90 in) high, 59.2 mm (2.33