I believe your farm is using 220v AC. So please try our APW3 power supply. If you want to build
large hash power, please talk to us in advance, and we can ship the PSU by sea, which will be very very cheap right now. It has 1600w capacity and it is very good for the S5+ deploy.
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694
The biggest APW3-12-1600-B2 manufacturing mistake is too short PCI-E cables.
The problem is, even the two side by side placed S5 Miner, not to mention S5 +
Click on the image to view enlarge picture