Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: Umtully1
  • Content: Threads
  • Order by date
  1. Umtully1

    Plenum rated power cables

    Has anyone seen plenum rated power cables? I've got an electrical room with a 1000A feed thats right in the middle of a plenum space. My understanding of the NBCC is that all cables passing through the plenum space (which will be every cable leaving the electrical room) is required to be...
  2. Umtully1

    Surge Capacitor on Unit Transformer

    Hi All, So I'm working on a generating station upgrade project and the utility has asked for surge capacitors on the low voltage side of the unit transformers. I've never seen this in my 4 shorts years of engineering, but neither has my mentor. Could anyone shed any light on why they're...
  3. Umtully1

    IEC 60909 - Short Circuit Calculations

    I've got a question regarding IEC 60909. Can someone explain how the different fault levels, ip, I"k, and Ik relate to different pieces of equipment. Specifically in relation to MCC, variable frequency drives and transformers? I've gone through the standard and understand how those three...
  4. Umtully1

    Large Motor starts on Generators

    Hi I was hoping someone could point me in the direction of some literature or advice regarding starting large motors on generators only? We have a very weak grid, only 1 18MVA generator and we want to start a 2000hp synchronous motor. Our plan is use a couple smallish diesel gensets as...

Part and Inventory Search