Questions tagged [power-backup]

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1answer
34 views

What do I need to switch power automatically from utility to solar offgrid inverter with no downtime at all during the transfer?

I want to switch power somewhere where power outage happens frequently from utility to inverter and back and forth kind of like a UPS without giving up on my inverter and what I already have.
16
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4answers
3k views

Getting UPS Power from One Room to Another

I’d like to run power from a Uninterruptible Power Supply (UPS) in ROOM A to where a work computer is used in ROOM B. I was thinking of installing an outlet box in ROOM A near where the UPS is plugged ...
2
votes
1answer
63 views

Should I Ground a Generator Powering an UPS?

My inverter generator's manual states that "If this generator will be used only with cord and plug-connected equipment, National Electric Code does not require that the unit be grounded." I am not ...
0
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1answer
63 views

How to use two UPS one online and the other as backup?

I have two UPS 10kva 220 volt used for controlling system. I need one ups online and the other one as backup. If the Grid supply out the main ups pick up the load and if the main ups fail to do that ...
0
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1answer
788 views

Turning off Power to Thermostat to Replace It

I'm replacing my old thermostat due to issues with it somehow not staying at my set temperature. It's a Simple Comfort 2001, and I'm replacing it with a newer model, a Simple Clean 2001L. Both of them ...
0
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3answers
112 views

20 kW generator overkill for a home?

I see 20kW backup generators advertised for homes, but this seems like total overkill, or maybe my math is wrong? According to my energy bill I use about 400 kW hours of electricity per month. So, ...
2
votes
2answers
207 views

“power buffer” in front of generator for peak power shaving?

I need to do some work off-grid, and I only have a 1000W generator to drive my power tools, which easily draws twice that (and probably more when starting up) when cutting steel. Instead of getting a ...
1
vote
2answers
112 views

Will a consumer UPS clean up power from a conventional genetator

I have a DeWalt DXGNR7000 generator with a bonded neutral. I’m okay with house wiring, the fine folks here on Stack helped me out with that. However, I know that these types of gensets create 60hz ...
0
votes
1answer
86 views

What is in the 4-pin DC cable?

I received a used DVR, which expects a power supply like this -- note the 4-pin connector. I want to feed the DVR and the cameras from a battery-backed system like this so that the whole setup ...
1
vote
3answers
266 views

What do i need to stop my computer from rebooting in electricity fluctuations [closed]

AC 240V location. My computer at home keeps restarting at the time of fluctuations and i loose all my work, this happens minimum once every day and some days more than 2 times. I have 1100va ...
0
votes
2answers
664 views

Can I use a heavy gauge extension cord from the wall to a UPS?

I have a 900VA/480Watt UPS/surge unit, and it doesn’t quite reach the wall where I need to plug it in. I'm using it to power an iMac. The unit has a 3x16 AWG cord. Is there any harm or difference, in ...
0
votes
5answers
706 views

Use small UPS to power steam boiler

I have a steam boiler (natural gas fired) and I'm wondering if I can safely use a small UPS to backfeed power to the boiler, in case of a power outage. I'm not sure how much total run time I'd get - ...
0
votes
1answer
38 views

Distribution of lengths of power outages

I am looking for a distribution graph of power outages. I am assuming the graph would show that the lengths are positively skewed. From this I would be able to determine how long to have my ...
1
vote
1answer
408 views

Can I connect the UPS neutral to my mains neutral permanently?

I am trying to wireup a UPS (old one bought for my PC once) to power one of my ceiling lamps so it works as an emergency light. (Stupid idea? Yeah? :P) But since the ceiling lamp wiring is already ...
0
votes
2answers
388 views

Open Compute Server needs 220v to run. Can I use voltage convertor to run it?

So I bought an open compute kind of server and it runs on 220 volts and 700 watts power supply. So I decided to purchase a voltage converter(Transformer) My question is is this stable and will I ...
2
votes
3answers
12k views

How to determine (not estimate) starting amperage of a motor?

I want to buy an inverter-generator to run my Trane heating system in case of a power outage. The Trane is on a 20 amp circuit. The sticker says it needs a minimum of a 15.2 amp circuit. My question ...
0
votes
1answer
1k views

Discharge back-up sump above ground?

With a TON of rain in my area recently (Northern Ohio), my basement flooded (around 2" of water). The sump pump came with the house, and I never gave it a second thought (I should have). Now that I'...
1
vote
1answer
207 views

How do I select the right generator?

I'm looking for advice on what kind of generator I should get for my mobile home. We have had 3 pretty bad storms (2 hurricanes, 1 blizzard) and am looking to give my home backup power. Now I have ...
4
votes
2answers
245 views

Could I use a UPS to power my humidifier on an underrated breaker with a little trickery

I recently bought a house with really nice hardwood floors, but the builder didn't put any thought into installing a humidifier system. I'm now looking into my options and steam humidifiers seem to ...
4
votes
2answers
283 views

What Good and Affordable Alternative Power Source Would You Recommend?

I am woking on a startup (read: using my computer always). 80% of the time, I generate my own electricity with a petrol/gas generator. On new years day, the Nigerian government increased the price of ...
2
votes
1answer
902 views

Solar powered charger for laptop

How do I build a solar powered charger for a laptop with dc rating 19v, 3.42A? I'd also prefer to use some other batteries to store the electricity? How can I accomplish this?
3
votes
2answers
172 views

Solar panel: Current-related question

I found a solar panel rated 9v, 70mA. I want to use it to create a power backup for a 9v, 1A router. Is this possible?