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Harry1984
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I've got an RO system and due to power fluctuations I need a generator for it. Can you tell me of what KVA generator should i buy for it and how to go about the calculations. Thank You
You need to add up all the power needed for the various components. One of these is not listed (your well pump).Harry1984 said:Thank You Sir.
This is the quotation i got for 5000gallons/day.
There are different pumps to be installed and their respective power consumption values are given.
Kindly help me out in this issue.
Thanks.
anorlunda said:Your power utility should also be able to give you historical data of your own power usage. I say that because there may be loads that aren't mentioned in the RO specifications.
To allow for uncertainty and future expansion, I would add 30% margin to the generator capacity you calculate.
Good luck
My understanding is that you should NOT convert to kW because the generator's limitation is that amperage through the windings, which means that when you have poor power factor (such as when running multiple small motors at part load), you risk burning it out. Perhaps residential generators aren't rated by kva, but I'm pretty sure commercial ones are.William White said:I connect a lot of generators and use a very simple method
Measure the current drawn using a grip-ammeter (you can do this during the times of highest load if you want) at the intake
Convert to KW, add fudge factor (25%)
done
russ_watters said:My understanding is that you should NOT convert to kW because the generator's limitation is that amperage through the windings, which means that when you have poor power factor (such as when running multiple small motors at part load), you risk burning it out. Perhaps residential generators aren't rated by kva, but I'm pretty sure commercial ones are.
But if anything, calculating the kva and using it as kw would provide the extra safety factor needed if the generator is rated by kw and the max amperage isn't specified.
To calculate the usage of a generator for a system, you first need to determine the power requirements of your system. This can be done by adding up the power ratings of all the devices and appliances that will be connected to the generator. Make sure to also account for any surge or starting wattage requirements.
The formula for calculating generator usage is: (Total Power Requirement x Usage Hours) / Efficiency = Fuel Consumption. This will give you the estimated amount of fuel needed for your generator to run for a specific amount of time.
The efficiency of a generator can be found on its specifications sheet or by contacting the manufacturer. It is typically expressed as a percentage and indicates how much of the fuel's energy is converted into electrical power.
Yes, you can estimate the fuel consumption of a generator by using the formula mentioned above. Keep in mind that the actual fuel consumption may vary depending on factors such as the load on the generator, temperature, and altitude.
It is possible to use a smaller generator for a shorter period of time, but it is important to make sure that the generator can handle the initial surge of power that may be required by certain devices. It is recommended to consult with a professional to determine the appropriate size of generator for your specific needs.