One HP = 753 watts, so the simplest formula to get your answer would be:
kW = HP/0.753
But that assumes 100% efficiency & a 1.0 power factor. Motors on compressors typically have a power factor of .7, but that can vary from .4 to .8 The power factor is the algebraic form of the nonlinear relationship between watts and volt-amps in an AC system. Always assume that a generator's rating is actually volt-amps and not watts, and you won't have a problem with your loads.
You should also add in a safety factor. So, the formula would be:
kW = SF * ( 1 / efficiency ) * ( 1 / PF ) * ( HP / .753 )
Putting in some typical real world values:
kW = 1.25 * ( 1 / 0.8 ) * ( 1 / 0.7 ) * ( HP / 0.753 )
I don't have a calculator handy so I'll let somebody else punch the numbers :-)
Identify the neutral wire on the generator. This will be the unused conductor to run the compressor. The ground and line1, line 2 are all that are needed.
Your house runs nowhere near 200 amps, so you need to make a list of appliances and fixtures that you use, or that you will need while the generator is running, and add their power consumption together. Add some extra capacity for growth and so the generator is not always at full power. Then talk to dealers about generators with the amount of power you need. To run the house on a generator with the same capacity as the service that you have in your house you would need a 50 Kilowatt generator.
I power my home from a 7000 watt generator. It connects to a 12 circuit transfer panel. Backup power is supplied to the well pump, fridge, freezer, furnace, microwave and toaster ovens, television, computer, and several lights.
You would need to size your generator to power the items that you need to power during a power outage (freezer, refrigerator, etc.). The fewer items you need to power the smaller the generator you can get. Items such as water heaters, air conditioners/heat pumps and electric furnaces use more energy than most smaller generators can supply. Any one item plugged into a 15 amp outlet would use less than 2000 watts each (max). A 5000 watt (continuous rating) generator should have no problem powering a refrigerator, a freezer and a few lights. Larger items like A/C, water heaters and electric furnaces would need to be turned off for a generator this size.
Yes, you need an electrician to install a power generator and it is very important that he is licensed otherwise it would not work/is not legal. Hire the licensed electrician to install a transfer switch.
If you were wanting to change an electric power generator to a gas power generator, I would probably not do it on my own. Instead I suggest you call a professional to change it for you.
A gas generator generates electricity and can be used as a backup in a power outage. I am not certain what you mean by an electric generator. If there was a power outage, how would an electric generator work?
You can purchase an electric power generator, but it won't do you much good if the electric goes out. A kerosene or deisel generator would be a better choice.
Power generators are available at Home Depot, Rona and Canadian Tire. Amazon have a generator buying guide that would explain what is a power generator.
The governor controls the speed of the power source rotating the generator. This has to be continually adjusted to match the load on the generator. As more load is switched on, the generator becomes harder to turn, this would cause the generator to slow down, unless the power unit is adjusted to increase power and correct the speed.
A 5 kW generator would turn it over but if the full 30 hp of mechanical power is needed, that would require about 30 kW of electric power from the generator.
form_title= Champion Generator form_header= Have a backup when the power goes out. Have you ever owned a generator?*= () Yes () No What is your budget for a generator?*= _ [50] Would you like an industrial size generator?*= () Yes () No
You would use a standby generator as a back up electricity source when there are outages of electric power. Business such as factories and also offices would have a standby generator in place.
Identify the neutral wire on the generator. This will be the unused conductor to run the compressor. The ground and line1, line 2 are all that are needed.
The purpose of a generator is to generate electricity. An electric generator would be redundant. It would need electricity to make electricity and when there is a power outage there is not electricity.
There are many places you can find a generator if you want to keep it quite low on the price I would check lowes, home depot, craigslist or amazon. A backup power generator is an extra source of power so if someone runs their power off of a generator and it goes out they will have another one to use.
Assuming you are asking about the ac compressor, there would be two possibilities, blown fuse or low on freon.