Topic: Moving my miners to a 240v system (Read 421 times)

I have a watt meter hooked up right now. Running my s1's at 200gh i am drawing 433 watts with a xfx 80+ gold psu. It is certianly much easier to stay with 120v system and cheaper in materials.

It really depends on the PSU.  My views on this are both old school PC TECH and experience.  Look at the power supplies you have.  IF they have the switch on the back for what power in it can take ( 115/230v ) they may be able to handle it, no guarantees as these types take the 115v and use a half wave rectification then do their magic to get the +12v +5v +3.3v -5v -12v at what ever Amps per by ( most likely ) blocking oscillation down to what is needed.  With the 230v setting, it uses full wave rectification.  It can be an issue as the 3 prongs on the plug means the 3rd one is CASE GROUND that it trys to also be power supply ground.  With Full Wave rectification VS an unknown ground ( 2 different phases of 120V ) it is possible to get less than 240 ( trough to trough ) OR higher than expected ( peak RMS to almost peak RMS to keep it at 244V based on the 120v being RMS not peak voltage ).

As to the frequency, if they have the RL listing or CSA listing, they are SUPPOSED to handle from 52 Hz to 64 Hz to allow for possible frequency issues with home power.  ie if they got the listings, forget the frequency of inbound power.  IF they specifically call for some frequency, they may be using that as a base frequency to ' do the magic ' to set the output.  It's not common, but it can be done.

Power savings is a relative term.  You would ' save ' more by setting up a solar cell/wind farm, getting deep cycle batteries and inverters for the whole thing and if there is excess power, sell it back to the grid.  They are not complicated as long as you have it generator to charge controller to batteries to inverter to miners.  Check with your local power company on what is reqired for selling back to the grid if that's an option.  The only other issue is the actual efficiency of the power supplies.  Heat means lack of it, if the new system gets as hot or hotter, you are more likely getting the same efficiency.  It will be hard to tell with out setting it up and putting a watt meter on each to test.

I would like to run my miners on 240vac to improve efficiency. Before i go any further I just want to run my ideas by some people. My plan is to get a 240v 30a PDU with 8-12 outlets so i only have to put one outlet coming from my panel. I already know how to wire my panel. My question is I have read that PSU's can't handle 2 phase power, 2 hots, and 1 ground, or that the PSU's are meant to run at 50HZ at 240V. Can someone help clarify? Also, If i am running 5 1000 watt PSUs drawing about 4 amps a piece, will I see much savings in power? I currently have 2 120v 20amp circuits I am currently running 3 Antminers on. I have 3 more on the way. Thanks in advance for your help.