Hello,
Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!
10 amp x 240 volt = 2400 watt
that is the standard in scandinavia..
you are forgetting the AC to DC conversion of 0.71
AC voltage 240volts * 0.71(RMS conversion) = 170.40 volts DC
watts = amps * volts in DC
1704 watts = 10 amps * 170.40 volts(RMS)
240 volts AC @ 10 amps only gives you 1704 watts
ac to dc conversion depends on psu, some crappy psus will give a really bad conversion, while others give a better conversion
To more accurately calculate the actual RMS current flowing through the transformer, I could divide up the complete cycle into 6 or so time slices, estimate the current flowing during each time slice -- that's pretty easy when it's zero -- and then do the root-mean-square (RMS) calculation: square each current, average each of those squared values, weighted by the time that current was flowing, and then that the square root of that average. It might be quicker and more accurate to run a simulation with thousands of time-slices than to work it out by hand.
There are many techniques for reducing the RMS current through the transformer while supplying exactly the same power to the load. Electric power companies love those techniques, because their customers are just as happy (the load gets exactly the same power), they get paid the same amount of money (for customers that pay per kWh), and they can spend less money for transformers and long power lines (because higher RMS currents require bigger, heavier, more expensive transformers and power lines). Those techniques go by the general name of "power factor correction".
source:
http://electronics.stackexchange.com/questions/51397/how-to-calculate-a-current-being-drawn-by-a-full-wave-rectifier-diode-bridgeyour rms calculation is based off of finding the rms of loudspeakers, and the correct value is 0.707
edit: besides i was talking about the max current you can draw from a 10 amp outlet, not converson rate :-p
There is a reason these options are here for us to optimize with the specific hardware we use! 
