The electric power around here isn't all that reliable, with occasional outages, and many short drop-outs that are enough to get the UPSes to kick in and then shut off a few seconds later. All of our most fragile electronic kit is protected with a UPS; we have three and they're not cheap. So news of an improvement to the quality of our leccy supply is welcome.
We are warned of a scheduled power cut tomorrow, from 8h45 to 14h15, that they tell us is to improve the delivery of electricity. Well, let's hope so. This little lash-up is to keep the fridge-freezer running. I have no idea how much power the fridge takes, but I will find out tomorrow if 1.4kWh is enough to keep it going for five and a half hours.
2 comments:
Ways around things ......
I would run it with the thermostat turned full up before the mains goes off. Then leave it for 20-30 minutes before connecting the inverter. Chances are it wouldn't have run during this period anyway, and you'll save battery power by not having the inverter running. All inverters have a "parasitic" drain on the supply, it's what is needed just to run the internal circuitry. On one like you've shown it will be in the order of 1 amp @ 12 volts. Obviously you can't avoid that if running appliances which need a continuous supply, but for a fridge/freezer you could turn the inverter off for half an hour, then back on and see if the fridge starts up. If it doesn't, try in another 15 minutes.
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