I'm in the mid-west so first big storm last night (shut down my rigs for several hours and we had a 5 hour power outage). I was just wondering what small to medium sized miners (I'm pulling about 12,000W) use for power protection. Batter backups really aren't an option ...
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But that will only protect you from the surge and let you run for about 20min to shut down the rigs safely.
Backup generator of that capacity will be expensive to buy and expensive to run. Just accept the fact and move on.
In the past I've noticed UPS tend to do a better job than the power strips but I was just curious as to what others were using (or if they were using anything at all)
Tripp Lite boxes -- http://www.amazon.com/Tripp-Lite-Suppressor-Diagnostic-ULTRABLOK/dp/B00006B81D
Most power strips don't provide any protection at all. Usually there's a leakage of current even when the surge protector burns out.
You need to measure the phase angle of your current setup. It will have a lagging power factor due to inductive load. Its not an easy thing to give advice on as you will be governed by local regulations (you may need discharge resistors too). Contact a good local industrial contractor for a consultation. He may have some he has striped out of somewhere. 12kw isn't small in the domestic setting... ~60A @ 240v AC... thats two cooker spurs in the UK
I had lightning hit a pole near my house and it cooked every computer hooked up and even came in through the cable line and destroyed my router and modem. I could feel the hair on my neck stand up right before it happened...and the surge protectors did nothing. It killed the surge protectors and two UPS with it.
That's what I run on the panel in my office, I run 2 CNC machines, 1 laser cutter, mining rigs and computers, all hopefully protected to some degree from large surges or lightning by this device. I live in out in the country in Florida so lightning and brown/blackouts due to fallen trees is a pretty constant threat throughout the summer..
12AWG cable, 41A is max, read the spec, and get a pro in.
Are you permitted to do your own installations without being Regs qualified?
Now you have posted this on the net, a fire will void your insurance.
The problem i have here in the UK is the Mains power is surge free but at about 248v AC. We need 250v to 220v transformers to stop stuff from rest of world cooking itself. Also, i am just down the road from GCHQ Bude, the NSA/GCHQ joint listening center between US and UK internet trafic.
Up side is, the power is cock on reliable.
@Hytech2k they must be small CNCs
Surge protectors only help if you are far away from the lightning, if it hits near your house then there is nothing you can really do.
Just turn off your rigs during lightning.
Anyway, my apologies to the op for derailing his thread, good luck.
https://google.pl/search?q=dehnguard+lightning+protection&oq=dehnguard+li&aqs=chrome.1.69i57j0l5.6709j0j7&sourceid=chrome&es_sm=93&ie=UTF-8
this shit is for professional use
it's expensive... but
if you have xxkW mining operation It is worth every single penny
you need a good grounding to work properly
Most components will try to compensate running at 70V and will fail and in that case the PSU needs to detect this and shut off completely.
Also, this another reason why your PSUs should have headroom. i.e. if you need a 750w, buy a 1000w
I wish we still had manufacturing here in UK Hope you guys come over to the new forum when this one shuts.
Getting hit by lighting is my primary concern ... I've never noticed problems with brownouts around here.