I live in a cheap flat filled with expensive, sensitive electronic devices. There is only one electric circuit for everything to plug in. Several times a day, the fridge's compressor wakes up, and this causes a small dip in power. This is causing trouble with PC components I have already posted about, and also I hear a pop from my cheap PC boxes when happens. Everything is already plugged into a surge-protector power strip, but this doesn't help, probably because the power difference is too small to activate the protection.
Now I am planning to get good, expensive active loudspeakers and don't want them quickly ruined due to power problems. Also, I am afraid for that the power dips are shortening the life expectation of PCs, monitors and peripherals. So I want to find a solution now.
As far as I know, there are two options: an UPS or a voltage regulator. I've never used either, and don't have enough electrotechnics knowledge to know how each works. So I don't know which is better for my situation.
- For each device: does it react quickly enough to catch a positive or negative spike in power on its input end and still output level power on the other end, or does it need some time after fluctuations start?
- I have already tried to do some reading on both and noticed that there are different kinds of UPS and different kinds of voltage regulators. But I have already forgotten even the basics on voltage and power I learned in sixth grade, so I couldn't understand enough to know which kind would be suited for my case. Can you tell me what kind I need (and, if you know that, how are manufacturers labelling it)?
- I don't know how to calculate the capacity I'll need. I tried some online calculator for UPS, but it didn't let me choose all things I am going to plug in. By adding all the wattages of the power supplies, I came up with a theoretical peak drain of 1700 watt, although I think that I don't even reach half of it in a typical usage scenario (1700 W would include turning the boxes' volume to 106 dB). Is there some way to arrive at the proper capacity using this number, and how?
- Is there some other feature beside capacity and ability to rapidly react to a power fluctuation relevant to my decision?
- Which solution is expected to be cheaper and do the job better (core UPS functions like the opportunity to do a graceful shutdown in a complete power outage are irrelevant to my decision)?
Edit: Just noticed that both UPS and voltage regulators come with power sockets made for PCs and monitors:
I want to plug in some things which have a Schuko or Europlug: the external HDDs, the laptop's power supply, and the loudspeakers, as well as a Japanese external sound card (probably through a power converter which also has a Europlug). They are made for this kind of socket:
How to solve this, are there adapters or something else?