Thank you philipma1957 for your answer, really helpful! Let me answer your questions:
Question 1) So first question I have to attempt to fix the fuck up is to ask where is the 200 amp box?
The 200 amp box is installed in the washing room in my basement next to the garage where I set up my racks for mining.
Question 2) second question I have to attempt to fix the fuck up is do you have 4 separate circuits each one for 20 amps.Yes my electrician installed on my panel 4 separate circuits each one for 20 amps.
Question 3) third question I have to attempt the fuck up if there are 4 circuits going to 4 outlets how many rigs do you have.Yes so my thought processes is that for each circuit of 120 V and 20 A, the maximum wattage I can safely pull is 1920 watts (after applying 80% rule) or 16 Amp and I presently have 2 mining rigs pulling 1260 Watts (I see it thanks to the PDU with the meter integrated). I am planning to add a third mining rigs (6 GPUs GTX 1660 Super) which will be pretty close to 1920 Watts then I repeat that for each circuit/outlet.
Question 4) fourth question is since he switched out a 150 amp box for a 200 amp box do you have empty slots in the new box.Yes in my new electrical panel I now have 13 empty/available slots for new breakers.
5) fifth question is how many rigs using how much power do you have right now.Now I have 2 mining rigs using in average 600 Watts each and soon I will have 2 more mining rigs same type (6 GPUs, total: 600 Watts each rig).
I really explained to the electrician that I wanted to mine cryptocurrency and that I would like to have 10 kW in my garage available for that and this is what he sold me. Yea I am a newbie
Thanks for your answer.
You are not going to be able to safely run 3 rigs at 1920 watts per circuit.
1920/2200 = 87.27%
WTF. where did 2200 come from. 20 x 110 = 2200 and once you have 4 circuits pulling 1920 volts you will certainly have voltage sag to 107-115 in the hotter months.
So those circuits assuming the wires are 10 gauge and not 12 gauge could maybe do 2400 x .8 = 1920 watts.
MY suggestions are kick the electrician in the butt as he provided you less than 10kwatts.
you are pretty certain to be able to do 20 x 110 x .80 = 1760 watts if the wires are 10 gauge.
I will rant like mad as electricians are fucking amateurs you are a constant endless hard load on those circuit.
and your guy cut fucking corners.
If I were you I would do 3x 5 card rigs which if you are correct drops you to a safe number.
you said 1260 watts on a meter for 12 cards. so
10/12 x 1260 = 1050 for 10 cards x 1.5 = 1575 watts for 15 cards. that will work for you.
Other things you can do tear his work out on 3 of the 4 breakers
the 4 th you leave.
the 3 you up grade to 20 amp 220/240 service. you need 3 more breaker slots as each 220/240 line uses 2 break slots.
so you end up with 3 x 2 = 6 slots to run 3x 220/240 breakers
and keep the one he did.
change the sockets to 20 amp 220/240 sockets
so the 220/240 will do
220 x 20 x .80 = 3520 watts that is 5 rigs on each circuit
Thank you philipma1957 for taking the time to explain me all that but I'm confused. My electrician told me that each circuit/outlet is 120 V not 110V. I don't understand why you are referring to 110V, I live in Canada I think it's always 120V or 240V we use no?
I told him that I calculated with the 80% rule that I shouldn't go above 1920 Watts and he told me that I can go up to 2000 Watts no problem. He told me he's been electrician for 31 years
I verified the wires for each 120V/20A circuit are 12 gauge
.
It's good to know I can upgrade but I think I will nevertheless try to plug 3 mining rigs (waiting for the Veddha rack shipped from Hong Kong for the 3rd mining rig) on one 120V/20A if I don't go above 1920 Watts. I will monitor it closely.
Well living in Canada with cooler temps for the summer may work for you. But trust me voltage sag is a
well known factor all over the world.. While you may spec to 120 you will find you range under and over that 120
Since your mining gear psu's can handle more power I don't worry if you drift upwards to 125 or so it is if you drop to
lets see 115 is
115 x 20 x .8 = 1840 and your rigs pull 1890 do that for 1 hot week you will pop breakers.
but hey your rigs your home your $$. Check the voltage with this unit or one like it :
https://www.amazon.com/BALDR-Electricity-Monitor-Consumption-Killawatt/dp/B07Y1SLZ8W/ref=sr_1_1_sspa?it will tell you your volts if you sag under 115 volts you are in the danger zone.
I am interested in your readings in your home.
you said you have a meter.
see if it shows volts with 1 rig attached
see if it show volts with 2 rigs attached.
see if it shows volts with 3 rigs attached. make the last rig have 4 cards so as to not over load the meter.
see if there is a sag.
if you read 121 then 120 then 118 you may have issues in the summer.
btw the k-watt-meters like my like are not meant to run 24/7/365 with watts over 1200 but you can exceed 1800 for a short time like 20 minutes which would let you see if the line sags under load.
You could be in a very well wired area and not get a lot of sag.
I just checked my volts on my 120 lines they are 121.7
I just checked on my 240 lines they are 243.4
It is cool in NJ ,USA so grid is not stressed I tend to run in this level to the heart of the summer. I will be 117 and 234 this summer.
Hey merci beaucoup (thanks a lot) philipma1957 !
Ho yes you are right, I can see on my PDU Remote Management (I connected my PDU with an Ethernet cable to my LAN), a graph showing the voltage fluctuation and it ranges between 117.5V to 122V for the last day. Plus, yesterday something strange happened, I was reading in my living room then the light flashed so I was worry, I checked on HiveOS app on my phone and my rigs were disconnected. I went in the garage didn't understand what happened, I did a hard reboot and everything went back to normal. I only have 2 rigs for now for a total of 1250/1260W.
When you write
“Since your mining gear psu's can handle more power I don't worry if you drift upwards to 125 or so it is if you drop to lets see 115 is 115 x 20 x .8 = 1840 and your rigs pull 1890 do that for 1 hot week you will pop breakers.”But if the voltage drops at 115 Volt so the 80% rule won’t stay and I will be using more than 80% of total power capacity isn’t?
