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Windows 7: Protecting PC from Voltage Surges While Running Without UPS

4 Weeks Ago   #11
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

I use a surge suppressor & a UPS on my computer. I also use this combination when running the computer from my 7.5KW back up generator which is petrol powered & does not have sine wave output. In fact the voltage & frequency do vary slightly depending on the load on the generator, but this have never been a problem with the computer & it works perfectly.

I also run a 50" plasma Panasonic TV from the same generator & it works perfectly as well, so I am inclined to think that too much is being made by sine wave output generators. The fridge, kettle, toaster, all the lights & the cordless phone also work on the generator.

Most devices that incorporate intricate electronics use a transformer & rectifier to convert the AC current to DC usually about 3-12 volts. Also a lot of hand held devices use batteries that slowly drop in voltage as they are used so constant voltage on these devices is not a problem.

The most damaging things for electronic equipment are voltage spikes from electrical storms & bad power authority switching systems. A lightning strike nearby to you that hits the power line will very likely blow most of your electric equipment that is not disconnected from the power.


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4 Weeks Ago   #12
Megahertz07

Windows 7 HP 64
 
 

Bligh you're right on generator voltage & frequency do vary slightly depending on the load on the generator but all mechanic generators produce sine wave outputs (single phase or 3 phase).
I also have a 2.4KW gas back up generator that I power all my house (including Air conditioners). Only the water heater (3Kw) is left out.
My System SpecsSystem Spec
4 Weeks Ago   #13
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

Luiz, mine is the same as yours so I can run the whole house including the Air Conditioner, stove, microwave etc., not necessarily all at once though. Of course the water heater is not included. I get a lot of electrical power outages here from storms & other failures.

Thanks for pointing out my mistake on sine wave. I was really trying to point out the variation of generator load & speed causing changes in voltage & frequency.

Just as an interesting side note my microwave has a clock that it tied to main frequency, hence it is very accurate. However, when using the generator it tends to gain slightly, indicating a slightly higher frequency than the mains.

Also we have 240 volts 50 Hertz power here.
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 Protecting PC from Voltage Surges While Running Without UPS




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