Home » Public Forums » GMCnet » [GMCnet] Powering Refrigerator with Inverter
| [GMCnet] Powering Refrigerator with Inverter [message #75736] |
Fri, 05 March 2010 18:21  |
paul h cashman
Messages: 176
Registered: May 2005
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Senior Member |
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Hi All,
About two Years ago ,I installed one of those small 4 Cu Ft Refrigerators in
my Rig.
Then last Year, I decided to Power it with a Xantrex 3,000 W modified Wave
Inverter.It would run for a short while and the Over Load ,in the Frig would
trip.
I installed a ..9KVA isolation Transformer to feed the Frig, everything
appeared to be OK.
This Week I found a 4 Cu Ft with a separate Freezer Compartment .Before I
installed, the new Frig ,I thought I would Power it with normal AC Power
then compare it to the Inverter.
It ran most of the night ,and the Compressor was just barley warm.
I hooked the Inverter up and within a few Minutes it was Hot about 150*.Its
hum was louder, but didn't trip the Overload, This was out in the open. not
confined.
I f you plan to Power an expensive Refrigerator with an Inverter,I would
suggest you do it with a Pure Sign Wave one.
Paul Cashman
Riverdale Ga
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Paul H Cashman
Riverdale Ga
1978 Transmode
1975 Corvette
1978 Beetle Convertible
1989 Harley Davidson Sportster
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| Re: [GMCnet] Powering Refrigerator with Inverter [message #75779 is a reply to message #75736] |
Fri, 05 March 2010 23:19  |
idrob
Messages: 645
Registered: January 2005
Location: Central Idaho
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| paul h cashman wrote on Fri, 05 March 2010 16:21 |
Hi All,
About two Years ago ,I installed one of those small 4 Cu Ft Refrigerators in
my Rig.
Then last Year, I decided to Power it with a Xantrex 3,000 W modified Wave
Inverter.It would run for a short while and the Over Load ,in the Frig would
trip.
I installed a ..9KVA isolation Transformer to feed the Frig, everything
appeared to be OK.
This Week I found a 4 Cu Ft with a separate Freezer Compartment .Before I
installed, the new Frig ,I thought I would Power it with normal AC Power
then compare it to the Inverter.
It ran most of the night ,and the Compressor was just barley warm.
I hooked the Inverter up and within a few Minutes it was Hot about 150*.Its
hum was louder, but didn't trip the Overload, This was out in the open. not
confined.
I f you plan to Power an expensive Refrigerator with an Inverter,I would
suggest you do it with a Pure Sign Wave one.
Paul Cashman
Riverdale Ga
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I would fully agree with you about the sine wave desireability, but some modified sine wave inverters are better than others in this respect. I am surprised you had difficulty with the Xantrex, as they usually are fairly good, but each design is a little different, and that one and your refrig must have some "issues" when working together. Glad you did the tests prior to putting it in.
Rob Allen
former owner of '76 x-PB
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| Re: [GMCnet] Powering Refrigerator with Inverter [message #75830 is a reply to message #75795] |
Sat, 06 March 2010 20:56 |
paul h cashman
Messages: 176
Registered: May 2005
Karma: 0
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Senior Member |
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Hi,
My new Frigerator only draws about 3 Amps @ 110VAC ,OR ABOUT 300 Watts.A 750W to 1,000W ,Should work fine for me.
When the Compressor starts up ,it will draw about 3 Times normal run Amperage for a few Seconds.
The reason ,I have the 3,000 Watt Inverter, was to Power other AC Devices also.
Paul Cashman
Riverdale Ga
Paul H Cashman
Riverdale Ga
1978 Transmode
1975 Corvette
1978 Beetle Convertible
1989 Harley Davidson Sportster
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| Re: [GMCnet] Powering Refrigerator with Inverter [message #75845 is a reply to message #75736] |
Sat, 06 March 2010 22:20 |
George Hagans
Messages: 6
Registered: July 2007
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Paul, is your inverter a modified sine wave or a pure sine wave? I'm wanting to go with whatever is best for refrig operation.
George Hagans
'78 Royale RB
Marion, Illinois
Mar 6, 2010 08:57:03 PM, gmclist@temp.gmcnet.org wrote:
Hi,
My new Frigerator only draws about 3 Amps @ 110VAC ,OR ABOUT 300 Watts.A 750W to 1,000W ,Should work fine for me.
When the Compressor starts up ,it will draw about 3 Times normal run Amperage for a few Seconds.
The reason ,I have the 3,000 Watt Inverter, was to Power other AC Devices also.
Paul Cashman
Riverdale Ga
--
Paul H Cashman
Riverdale Ga
1978 Transmode
1975 Corvette
1978 Beetle Convertible
1989 Harley Davidson Sportster
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| Re: [GMCnet] Powering Refrigerator with Inverter [message #75863 is a reply to message #75845] |
Sun, 07 March 2010 07:55 |
John Wright
Messages: 118
Registered: September 2008
Karma: 0
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Senior Member |
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The 75 Avion that is now being remodeled will have a AC only frig powered by
a 1500 W modified sine wave inverter. The PO had installed an AC only frig
and powered it with a modified sine wave inverter without problems. Erv
Troyer did a test on the same model frig that we both bought last year as
was able to run the frig on a modified sine wave inverter and posted the
results here on the net. You may be able to find the results over on the
Forum by doing a search. The Better unit of course would be the pure sine
wave unit but they do cost 2 to 3 times the cost of a modified sine wave
unit, but both appear to work well.
J.R. Wright
GMC Great Laker
GMCMHI
TZE Zone Restorations
77 Eleganza II (For Sale)
75 Avion (Under going Frame up Restoration)
On Location at Florida Space Coast
On Sat, Mar 6, 2010 at 11:20 PM, George Hagans <g.hagans@verizon.net> wrote:
> Paul, is your inverter a modified sine wave or a pure sine wave? I'm
> wanting to go with whatever is best for refrig operation.
>
> George Hagans
> '78 Royale RB
> Marion, Illinois
>
>
> Mar 6, 2010 08:57:03 PM, gmclist@temp.gmcnet.org wrote:
>
>
>
> Hi,
> My new Frigerator only draws about 3 Amps @ 110VAC ,OR ABOUT 300 Watts.A
> 750W to 1,000W ,Should work fine for me.
> When the Compressor starts up ,it will draw about 3 Times normal run
> Amperage for a few Seconds.
> The reason ,I have the 3,000 Watt Inverter, was to Power other AC Devices
> also.
> Paul Cashman
> Riverdale Ga
> --
> Paul H Cashman
> Riverdale Ga
> 1978 Transmode
> 1975 Corvette
> 1978 Beetle Convertible
> 1989 Harley Davidson Sportster
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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