Calculate Operating Cost Per Month Now that you know the number of kilowatthours an appliance uses, go to your rate schedule and your electric bill to see what the average kwh costs.
A kilowatt hour is the electrical energy consumed by 1000 watts of electricity used for one hour.
A kilowatt is usually indicated by "kw" and a kilowatt hour by "kwh.
Reading a Meter Electric meters read in kilowatt hours, just as a water meter reads in gallons and a gas meter in cubic feet.
According to the instruments," young Arcot said, "we have stored fifteen thousand kilowatt hours of energy in that coil and there seems to be no limit to how much power we can get into it.
Just from the power it contains, that coil is worth about forty dollars right now, figured at a quarter of a cent per kilowatt hour.
Unfortunately, we made the mistake of connecting it to the city power lines, and it cost us a hundred and fifty dollars at a quarter of a cent per kilowatt hour.
It's going in at ten kilovolts, so that's a five billion kilowatt supply.
For domestic uses the electricity is sold at seven to two cents a kilowatt hour, and for power at a minimum of five cents a kilowatt and as low as two cents for large users.
The rate for electricity used for lighting is 10 cents per kilowatt hour, for heating only half that rate.
The volt, ampere and ohm are terms that are used to express the conditions of the electric circuit; the watt and the kilowatt are units that are employed in measuring its quantity in commercial usage.
A kilowatt of electric energy, for which 10 cents is a common price, will furnish a surprising amount of manual labor.
Just as a dollar in money conveniently represents 1000 mills so does a kilowattof electricity represent a convenient quantity.
The commercial kilowatt is rated at an hour of time, and is, therefore, equal theoretically to 1-1/3 horsepower for one hour.
This lamp used with electricity at the average rate per kilowatt can be burned for 10 hours at less than half a cent.
Since the kilowattpurchased for 10 cents is a kilowatt-hour, the equivalent horsepower is for the same length of time.
If a 10 kilowatt constant pressure transformer at full load and temperature have a copper loss of .
It is well to allow one kilowatt per horse power of the motor in selecting the size for the transformers, excepting in the small sizes when a little larger kilowatt rating is found to be the most desirable.
Since standard alternators are seldom designed to carry their rated kilowatt load at less than 80 per cent.
Despite the ten-kilowatt set being used to project the beam, the resistance of the apparatus on board the pirate ship was amazing.
The cold of the cabin became unbearable, for every kilowatt of power that the generator could get from the air outside was needed to run the power units.
A condenser of this value for a 1/4-kilowatt transformer costs $7.
While you can use the cheap aerial already described for a small spark-coil sending set you should have a better insulated one for a 1/2 or a 1 kilowatt transformer set.
Don't use an input of more than 1/2 a kilowatt if you live within 5 nautical miles of a naval station.
A statement of the amount made per kilowatt hour may be misleading, since a certain amount of loss is of necessity entailed during this process.
Sidenote: Exciter Engines] The two exciter engines are each direct connected to a 250 kilowatt direct current generator.
Arrangements were made, however, so that this outfit can afterward be replaced by a regular 5,000 kilowatt traction generator.
The largest central stations with load evenly distributed for the whole day could furnish electricity profitably at four cents per kilowatt hour.
There are many small electric lighting plants which furnish current from sundown to midnight only at fifteen cents perkilowatt hour, with little profit.
The dynamo reduced the cost of production from five dollars to ten cents per kilowatt hour.
If for any purpose it becomes necessary to "set the valves" on a 1500-kilowatt mechanical gear, the operator should proceed in the following manner.
The Curtis 1500-kilowatt steam turbine will be taken first and treated "from the ground up.
A 75-kilowatt tube had been produced in England, it is true, but it had not been found practicable.
As a consequence, the 20-kilowatt tube had not yet been perfected, when time came for him to depart for Alaska with his father.
Now," said Jack, "is the time that I wish I had my 20-kilowatt radio tube that I have been working on so long.
A 1/4 kilowatt motor is used to run a washing-machine for 5 hours.
The power of dynamos is usually expressed in kilowatts, a kilowatt representing 1000 watts.
Find the cost of using it for 2 hours at 12 cents a kilowatt hour.
How long would it take for this lamp to use a kilowatt hour of energy?
If it toasts a slice of bread in 2 minutes, what is the cost at 10 cents a kilowatt hour?
What is the expense for this power at 10 cents a kilowatt hour?
In addition to the four main generating sets, there were two 30-kilowatt engines and dynamos situated on a platform in the turbine engine room casing on saloon deck level, 20 feet above the water line.
A Marconi 5-kilowatt motor generator with two complete sets of apparatus supplied from the ship's dynamos, with an independent storage battery and coil for emergency, was fitted in a house on the boat deck.
On this basis one kilowatt hour gives 272 ampere hours and as one ampere hour is theoretically capable of producing 1.
The transmitter the guy in the screen said to make was a twenty-kilowatt job.
They knew that somewhere behind the Iron Curtain a twenty-kilowatt transmitter had been turned on.
The transmitter must be of at least twenty-kilowatt power.
These wide variations in the volts per mile on transmission lines and in length of lines lead to different weights of conductors per kilowatt of generator capacity.
More than enough water-power to drive the 800-kilowatt generators at full load was estimated to be available, except at times of exceptionally low water.
In each case the weight of copper or aluminum conductor per kilowatt of generator capacity is used to determine their costs per kilowatt of this capacity at the prices just named.
All other factors remaining constant, the weight of conductors per kilowatt of generator capacity would be the same whatever the length of the transmission, provided that the volts per mile were uniform for all cases.
For instance, in Figure 168 each division of the dial at the right represents one-tenth of one kilowatt hour and a total revolution of the pointer ten-tenths, or one kilowatt hour.
Finally, to crown the whole story, a kilowatt for one hour is a Board of Trade unit.
Board of Trade Unit = A current of one kilowatt flowing for one hour.
Low lagging power factor on a system, therefore, will generally mean limited output of prime movers; greatly reduced kilowattcapacity of generator, transformer and line; and increased energy losses.
It has a small test circle indicating one kilowatt hour per revolution in all sizes where the first regular circle indicates 10.
It requires the use of small transformers which are necessarily less efficient and more expensive per kilowatt than large transformers.
Each division of the right hand circle, or that passed over by the most rapidly moving pointer, equals one kilowatt hour in meters without a dial constant.
For exceptionally heavy work where the kilowatt rupturing capacity is greater than that for which the other types are suitable.
The amount of energy to be dissipated in the arrester depends upon the kilowatt capacity of the generator, the internal resistance of the cells, and the time required to operate the circuit breakers.
If a constant be used to reduce the reading to kilowatt hours, it should be some multiple of 10, to avoid errors in multiplication.
The register is of the four dial type, reading in kilowatt hours.
The dials should be easily read and should register directly in kilowatt hours.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "kilowatt" in a variety of sentences. We hope that you will now be able to make sentences using this word.
