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Subject Topic: power inverters Post Reply Post New Topic
12/6/2008 at 1:37pm
 Location: tyne and wear
 Outfit: cabanon stratos trailer tent
View pinky16's Profile View Profile   Reply to pinky16 Reply   Quote pinky16 Quote  
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Hi all could any of you electrical magicians out there tell me if I could run a domestic tabletop fridge via a 150W power inverter from my cigar lighter? The fridge has a 90W rating but I have heard they use more when the compressor kicks in.If not what rating will I need.Just to add I will only be running it between home and campsite. Any help would be appreciated.


12/6/2008 at 4:58pm
 Location: East Yorkshire
 Outfit: Honda CRV & Bailey Pegasus Verona
View mbarry215's Profile View Profile   Reply to mbarry215 Reply   Quote mbarry215 Quote  
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If you're right about the ratings, you should be OK.  The 90W should be for when the compressor is running.  When its not running it will only consume a small current to run an "on light" etc.  But if you run it when your car engine is not running it will flatten your battery very quickly.


12/6/2008 at 5:22pm
 Location: None Entered
 Outfit: motorhome
View Mikey72's Profile View Profile   Reply to Mikey72 Reply   Quote Mikey72 Quote  
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A compressor motor pulls about 5 times the running current for the first half second, so about 450W for half a second, then dropping to 90W, so I'd have said no for a 150W, and the motor may not start because of the square wave output of the inverter anyway, some motors do, some don't. Sorry! But worth trying if you can.


13/6/2008 at 9:30pm
 Location: Liverpool
 Outfit: Swift 480ES Range Rover
View THE BOWENS's Profile View Profile   Reply to THE BOWENS Reply   Quote THE BOWENS Quote  
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Find an inverter that will peak at 450 watt+ but will run at a lower ratting. You can buy expensive inverters that will give a true sine wave that will run anything.
If you've got the money


inverters

Click above link and there are inverters there specifically for kitchen equipment.
Like I said if you've got the money.


16/6/2008 at 5:31pm
 Location: tyne and wear
 Outfit: cabanon stratos trailer tent
View pinky16's Profile View Profile   Reply to pinky16 Reply   Quote pinky16 Quote  
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Thanks for the replies I think I'll try and borrow one before I part with my cash thanks again.



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