APW7 is a new power supply model released by Bitmain especially for our Antminers. This power supply is an upgraded version of APW3++ and it has few technology advantages compared to our APW3++.
Specifications
Output |
DC Voltage
|
12.0 V |
Rated Current (200 - 240 V input)
|
150 A |
Rated Power (200 - 240 V input)
|
1800 W |
Rated Current (100 - 140 V input)
|
67 A |
Rated Power (100-140 V input)
|
800 W |
Ripple & Noise
|
< 1% |
Voltage Regulation
|
< 2% |
Source Regulation
|
< 1% |
Load Regulation
|
< 1% |
Setup, Rise Time
|
< 2 S |
Power off Protection Trip Time
|
> 10 mS |
|
|
Input |
Voltage Range |
100-140 V A/C
200-240 V A/C
|
Frequency Range
|
50 - 60 Hz |
Power Factor
|
> 0.99 (full load) |
Leakage Current |
< 1.5 mA 220 V 50 Hz) |
|
|
Protection |
Low-voltage Input
|
80 - 89 V A/C |
Output Short Circuit
|
Yes |
Output Overcurrent
|
100 - 200 A |
Overheat Protection
|
Yes |
|
|
Environment |
Operating Temperature
|
-20°C - 50°C |
Operating Humidity
|
20% - 90% relative humidity (non-condensing)
|
Altitude
|
< 2000 m |
|
|
Structure |
Dimensions
|
220 x 108 x 62 mm |
Weight
|
2.0 KG |
|
|
Cooling |
Fan
|
Forced-air cooling |
Noise
|
43 dB |
|
|
Compared to APW3++, the rated power of APW7 has increased by 200 W. And we can understand from the below APW7 Efficiency Curve diagram that its efficiency is 95% which increased 1.5%.
Evaluation
We are using APW7 to run the X3 Antminer (which its rated Power is 500 W). We see that the power consumption of 490.8 W (on the left picture), so the load percentage is 490.8/1800 = 27.27%
Whereas using APW3++ to run X3 miner has a power consumption of 498.2 W (on the right picture), so the load percentage 498.2/1600=31.14%
We can conclude that APW7 could save around 4% of power used. This would reduce the cost of mining.
Temperature
Temperature measured at the placement area
Temperature measured on its metal casing:
APW7 has a better heat dissipation, which means APW7 can work in higher temperature environment.