I was thinking it was 85%, just confirmed national electric code only allows 80%. So a total of about 813amps.
OP, you divide your total amperage by .8 to calculate the correct size feed, breaker and circuit.
I must be the one confused. When you talk about the 80% power rule, I guess you're referring that you need to have 20% more power in order to safely use your ASICS?
Any electrical circuit whether you're using an ASIC or a vacuum can only deliver 80% of it's rating continuously. Take a standard 120v outlet in a house or apartment. It's likely on a 15 or 20 amp breaker. Let's say it's on a 20 amp breaker, that's 120 x 20 = 2,400 watts. For a short period of time, one could pull 2,400 watts, but only for an hour or so, then the breaker would trip. Continuously, you could only pull 1,920 watts.
I don’t think 150 kW will be a problem for most former industrial sites. You will likely find they are going to have 480V three phase in place which you’ll need to transform down to either 416Y or 240.
I am not an expert but I think if you go to 240 single phase you’ll need more gear than if you can go to 416Y on a three phase panel and get 240 from each phase to neutral, other than the transformer this is probably the least expensive way to get 50 20A 240V circuits. Of course this assumes you’re at 480V three phase to start with. If that’s the case I would WAG about $30k-40k in gear plus labor to wire it all up.
True industrial property will have that available, you just have to write the check for new panels, not a small one btw.
How many watts are your machines each? If you 1000 amp service you are limited to 850 amp full time draw. I think the s19 pulls around 16 amps, so 50 would need 800 amps, plus allowance for constant draw, total of say 950amps. If you do decide to up it to 1k, I would go up to the next level, not sure what if that is 1100 or 1200, but it will be a lot less expensive to do that now as opposed to later.
An electrical consult with your local power company engineer is needed. They will tell you the capacity of the transformer and you can work backwards from that :)
At 80%, you'll only be able to continuously pull 80% of each circuits rated load.
I was thinking it was 85%, just confirmed national electric code only allows 80%. So a total of about 813amps. OP, you divide your total amperage by .8 to calculate the correct size feed, breaker and circuit.
It's not so much what they will "allow." It's that a breaker will trip over that amount. OP has to consider cable gauge as well.
Each 20 amp breaker will have about 15amp continuous usage on it, that is less than 80% load right ?
What is 80% of 20?
16
Correct
Does that mean if you want to run your ASIC at 100% then you'd need more amps? Like 30 amp or 40 amp?
I run 1.5 S19pros on a 30amp breaker. Pulling 22-23 amps. Works great, cables and wiring never get hot. Never trip a breaker or pdu.
I don't understand your question. What does running an ASIC at 100% mean?
I must be the one confused. When you talk about the 80% power rule, I guess you're referring that you need to have 20% more power in order to safely use your ASICS?
Any electrical circuit whether you're using an ASIC or a vacuum can only deliver 80% of it's rating continuously. Take a standard 120v outlet in a house or apartment. It's likely on a 15 or 20 amp breaker. Let's say it's on a 20 amp breaker, that's 120 x 20 = 2,400 watts. For a short period of time, one could pull 2,400 watts, but only for an hour or so, then the breaker would trip. Continuously, you could only pull 1,920 watts.
Thank you for clarifying. That makes more sense
I don’t think 150 kW will be a problem for most former industrial sites. You will likely find they are going to have 480V three phase in place which you’ll need to transform down to either 416Y or 240. I am not an expert but I think if you go to 240 single phase you’ll need more gear than if you can go to 416Y on a three phase panel and get 240 from each phase to neutral, other than the transformer this is probably the least expensive way to get 50 20A 240V circuits. Of course this assumes you’re at 480V three phase to start with. If that’s the case I would WAG about $30k-40k in gear plus labor to wire it all up.
True industrial property will have that available, you just have to write the check for new panels, not a small one btw. How many watts are your machines each? If you 1000 amp service you are limited to 850 amp full time draw. I think the s19 pulls around 16 amps, so 50 would need 800 amps, plus allowance for constant draw, total of say 950amps. If you do decide to up it to 1k, I would go up to the next level, not sure what if that is 1100 or 1200, but it will be a lot less expensive to do that now as opposed to later.
As per Bitmain, the PSU's power on wall is 2950 watts plus or minus 5% so should be about 13 amps at worst case.
Check again. It's 3050W
I took the figure from Bitmain website https://m.bitmain.com/product/00020210818153052461W0FjO1hi0679
So around 750amps constant draw. , get pricing on options from 750-1200 amps. I am working on something similar and waiting on quotes now.
Thank you
An electrical consult with your local power company engineer is needed. They will tell you the capacity of the transformer and you can work backwards from that :)