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What size power inverter?

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Member - Posts: 17
Member spacespace
Joined: November 13, 2004
Location: United States
Posted: April 30, 2006 at 11:54 PM / IP Logged  
I want to put a power inverter in my work van so i can use it to power an air compressor so ill be able to use air tools out on the road. What size power inverter would be necessary to be able to do this?
Platinum - Posts: 5,053
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: May 02, 2006 at 5:48 PM / IP Logged  
The only question I need to ask is this: How many horsepower is the compressor?
And my answer to the above question: For each SINGLE horsepower, you need about 1100 watts continuous to keep it runnning. Double that (2200 watts) to get it started... You can do the math from here... Also, you will need to find an inverter that will handle HIGHLY inductive loads, both starting and stopping.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Silver - Posts: 695
Silver spacespace
Joined: November 20, 2004
Location: United States
Posted: May 14, 2006 at 9:46 PM / IP Logged  
You'll need to install dual batteries and have very big invertor for this. A small compressor when it restarts with the tank still under pressure will pop a 15 amp circuit and even sometime a 20 amp circuit depending on the condition of the motor. And with these dual batteries they will not give you a lot of run time because of the draw needed to restart. I don't recomend doing this..
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High End Restyling and Comlete Repair
Member - Posts: 23
Member spacespace
Joined: April 25, 2006
Location: United States
Posted: May 29, 2006 at 11:31 PM / IP Logged  
i would look at getting the tools you are using 120 volt and using a lower inverter. if the tools are all available in 120, thats my plan personally. how about a generator also since you say you have a van, could create some custom exhaust system and enclouser now that would be cool. i see alot of roofers using genarators on jobs

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