Hacker Newsnew | past | comments | ask | show | jobs | submit | blmt's commentslogin

I am really thankful for this article as I finally get where my coworkers get "wrong" notions about three-phase power use in DC:

>The calculations aren’t as simple as summing watts though, especially with 3-phase feeds — Cloudflare has a great blogpost covering this topic.

What's written in the Cloudflare blogpost linked in the article holds true only of you can use a Delta config (as done in the US to obtain 208V) as opposed to the Wye config used in Europe. The latter does not give a substantial advantage: no sqrt(3) boost to power distribution efficiency and you end up adding Watts for three independent single phase circuits (cfr. https://en.m.wikipedia.org/wiki/Three-phase_electric_power).


University of Zurich | Zurich, Switzerland | Onsite | System administrator | Full time

Service and Support for Science IT (S3IT) is a core unit at the University of Zurich with the ambitious goal of supporting research uses of IT for students, professors and researchers. We provide services and infrastructure in cloud and high-performance computing, data management, and software development.

The operations team is currently made up of 4 person managing a private openstack cloud deployment (~ 20000 vcores), some small specialized HPC cluster and a ceph storage cluster (~2 PB usable) all running Ubuntu.

We are looking to expand our team with a sysadmin with a strong linux background, openstack and ceph knowledge are helpful but not required.

Team language is english.

The original job ad can be found here: http://www.jobs.uzh.ch/jobDetail.php?jobID=8829

Should you decide to apply, please mention that you read the advertisement on HN.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: