Which UPS to a fridge 130w

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darwenn
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Which UPS to a fridge 130w




by darwenn » 01/02/10, 21:02

Hello, here is my question.

I want to power my fridge with an inverter. My fridge / freezer is 130w, only at startup there is a peak of 1000watts and currently my pseudo sine wave inverter of 600w does not hold out and goes into safety. This had already been discussed and I am therefore considering changing my inverter

So I found a pseudo sine wave inverter of 1500w (3000 in peak of a second) telling me that it is enough at the price of 120 euros. But the seller tells me that it will only work with a pure sine and offers me one of the same power but the price is double.

In your opinion ? I think a pseudo sine of 1500w is enough to operate a fridge, right?
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by Former Oceano » 01/02/10, 23:38

Personally I would be tempted to say that a pseudo sinus would be enough.
A pure sine wave inverter is more suitable for more sensitive devices. However, unless your fridge is ultra high tech connected to the internet with LCD TV embedded in the door, I don't see how the pseudo sinus would be embarrassing.
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by Forhorse » 01/02/10, 23:39

And a 1500VA pure sine converter costs around 200 €, not 300. Find another supplier.
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by Forhorse » 02/02/10, 10:30

Well, it turns out that I have under the elbow 2 24 / 230V converters
one pseudo sine of 1200VA and the other pure sine of 2500VA
I'm going to do the tests with my fridge and I'll keep you posted.
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by darwenn » 02/02/10, 11:41

Thank you :)
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by Forhorse » 02/02/10, 14:03

Well, I confirm with a pseudo sine of 1200VA it works. On the other hand it is necessary that the battery behind ensures otherwise when starting the current demand drops the battery voltage suddenly and the converter goes into safety.
To do the test I had to leave a charger plugged into the battery (but hey I only had 62Ah batteries very young)
With 100Ah or more it should go without worries.
I even did the test with a microwave (1600W plated) and it works too, even at maximum power (900W)

By cons with the pure sinus no idea, but it must work too. It's just that I think mine has given up.
I did a power-up test in the cellar, it worked, and when I mounted everything in the kitchen to plug into the fridge, it went straight to fault :|
All that remains is to exercise the guarantee.
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by darwenn » 02/02/10, 21:18

Thank you for this test, so I opt for a pseudo sine.
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by darwenn » 02/02/10, 21:49

Does anyone have an idea of ​​the operating time of a fridge over 12 hours or 24 hours?
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by Forhorse » 02/02/10, 22:08

it depends on a lot.
It seems to me that it is normalized with the stories of energy classes. For example a class A fridge is given to consume less than xx.kWh per 24h
Look at what class your fridge is in and find out about this standard (at worst a stroll in a household appliance store should find out, these indications normally appear on the labels)
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by darwenn » 02/02/10, 22:11

it is class A and consumes 130w
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