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Use a generator that provides wattage greater than starting wattage : Make sure the generator can handle the starting wattage of the compressor so it can successfully start. Take running wattage and multiple by 3 to determine starting wattage: Motors need a surge of power to start, and this is often 3x the amount of power that it will need while on and running. This combination results in your overall electrical power or wattage. Multiply voltage by amperages to calculate running wattage : Wattage is the product of amperage (how strong an electrical current is) and volts (electrical potential that sends a certain amount of force through the circuit). #Small air compressor repair manual#To calculate the wattage of your air compressor, you will need to:įind the voltage and amperages of the air compressor : You can find these individual values in the manual or detailed by the manufacturer. ![]() Compressors will often detail both their running wattage and starting wattage for you, but wattage can be easily calculated. These details should be provided by the manufacturer and will be necessary for calculating the overall wattage. This voltage impacts the size generator that will be required, with larger horsepower motors requiring larger generators.Īfter determining the voltage of your compressor, find the amperage. For larger compressors that run on over 2 HP, the outlet will need 220-234V outlets. Most electric air compressors will stay under 2 HP, which operates with 110-120V outlets commonly found in a home. Converting Air Compressor Metrics to Wattageīecause generators are typically characterized by wattage, you will need to determine these values for the air compressor to determine what size and power output you will need. #Small air compressor repair how to#There is no set size for every generator, and the section below will show you how to calculate which will work best for your compressor. The right size generator is the number of watts that slightly exceeds the starting wattage required to turn on and run your compressor. Compressors typically measure their power output with different levels of horsepower, ranging from 0.5 – 6.5 HP. These values will then determine how much power is needed from a generator. With many options in compressor power outputs, you’ll first need to identify the wattage required to run and start a compressor. This article will break down the guidelines you should follow in selecting a generator that will power your compressor without choosing too big! Choosing The Right Size Generator to Run a Compressor Then Multiply this value by three as it requires upwards of 3 times the power to start.īecause there is such a wide range of air compressors with varying power requirements, the size generator you need will depend on the individual compressor you have. First, Examine the voltage and amperage requirements to operate to determine the working voltage of a compressor. What size generator do you need to run a compressor? The size of the generator you use will depend on the specific size and power capabilities. The generator will need to be large enough to power the air compressor to complete the necessary projects. Many job sites will require generators to power various tools they may need, including an air compressor. If you need to run an electric air compressor in a location without an electrical outlet, you will need to have a generator accessible. ![]()
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