Search

Premium Membership

Save 15% on Pro Premium Plan with discount code: UX778 (expires on September 31st). Study specialized LV/MV/HV technical articles and papers.

Electrical power systems

Electrical power systems can be composed of the following:

  1. Subtransmission lines to main substations;
  2. Distribution lines to distribution substations;
  3. Utilization lines to distribution transformers; and
  4. Generators to provide emergency, stand-by, and/or prime power for mission essential/critical loads.
Electrical Power Supply And Distribution Book
Electrical Power Supply And Distribution Book

Generally, for Army base-wide distribution changeouts, the preferred CONUS voltage is 13.2 kV or 13.8 kV three-phase, three-wire, with delta primary and wye secondary transformer connections. When extending existing distribution systems, the preferred distribution voltage is the same as the existing distribution voltage.

Use of 15 kV nominal-class systems is preferable to 5 kV nominal-class systems unless system studies indicate a clear advantage over the 15 kV system. Use of solidly grounded, multiple grounded systems is preferredover single-grounded or ungrounded systems.

For Air Force, the preferred CONUS distribution is 12,470Y/7,200 volt, three-phase, with delta primary and wye secondary transformer connections. Voltages for facilities outside of the United States are specified in AFM 86-3.

Title:UNIFIED FACILITIES CRITERIA (UFC) – Electrical Power Supply And Distribution
Format:PDF
Size:1.5 MB
Pages:125
Download:Right here | Video Courses | Membership | Download Updates
Electrical power supply and distribution
Electrical Power Supply And Distribution

Premium Membership

Get access to premium HV/MV/LV technical articles, advanced electrical engineering guides, papers, and much more! It will help you to shape up your technical skills in your everyday life as an electrical engineer.
More Information

6 Comments


  1. Mudhafar
    Jun 22, 2018

    Hi
    Thank you very much


  2. mohsen
    Jan 24, 2014

    the best


  3. schuccy
    Dec 08, 2011

    I have gotten a great deal of info and i am very grateful for this site,


  4. ramsey
    Jul 11, 2011

    pl send above mentioned book above my E- mail address


    • Edvard
      Jul 11, 2011

      Do you have some problems with downloading? As far as I know, download link is working ok.


      • mirfan104
        Sep 02, 2013

        yes.i am struggling to download articles. kindly help me

Leave a Comment

Tell us what you're thinking... we care about your opinion! Please keep in mind that comments are moderated and rel="nofollow" is in use. So, please do not use a spammy keyword or a domain as your name, or it will be deleted. Let's have a professional and meaningful conversation instead. Thanks for dropping by!

five  ×    =  fifty

EEP Academy Video Courses

Learn to design LV/MV/HV power systems through professional video courses. Lifetime access. Enjoy learning and don't forget to apply a 20% discount code SEP21