I got a dead 400W (800W surge) Pure Sine AC inverter running once more and was testing it against multiple loads. I've had a fair set of modified sine and even a squarewave, but this 400W(800W) surge sine wave inverter is the closest to be able to power my refrigerator from 12V DC.
It takes a few tries but it seems that I can get my refrigerator started with this inverter. My 300W triplite (MSW), 320W simha (MSW), and 275W Heathkit(square wave) don't even get close - they go to shutdown right away. Even my 800W generator will even stall.
(incidentally speaking, the "surge" rating for the MSW inverters exceed that of the fuse rating, so the surge rating was only for less than a second. The sinewave actually have fuses that cover the whole current during surge rating...that's power.)
I wonder if anyone had any general suggestions that could get this inverter to push it over the hump and more reliably start the refrigerator? (Or maybe it's just the refrigerator that needs to be hacked/replaced?) Or perhaps this is just what I should expect from a 400W(800Wsurge) inverter should be able to do?
It takes a few tries but it seems that I can get my refrigerator started with this inverter. My 300W triplite (MSW), 320W simha (MSW), and 275W Heathkit(square wave) don't even get close - they go to shutdown right away. Even my 800W generator will even stall.
(incidentally speaking, the "surge" rating for the MSW inverters exceed that of the fuse rating, so the surge rating was only for less than a second. The sinewave actually have fuses that cover the whole current during surge rating...that's power.)
I wonder if anyone had any general suggestions that could get this inverter to push it over the hump and more reliably start the refrigerator? (Or maybe it's just the refrigerator that needs to be hacked/replaced?) Or perhaps this is just what I should expect from a 400W(800Wsurge) inverter should be able to do?
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