Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations waross 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: ProfT
  • Content: Threads
  • Order by date
  1. ProfT

    Motor Supply Voltage and Performance

    Hi peepz, just a quick one. What is the difference in performance between a 250 kw, 525V motor and a 250 kw, 6600V motor? Thanks.
  2. ProfT

    Effect of load reduction on the number of installed fins/radiators.

    Hi, I'm overseeing the installation of a power transformer. At full-load, this is a 7.5 MVA 30/6.6 kV transformer. However, the prospective load is roughly 2.5 MVA. How can I go about calculating the copper losses of this transformer if I have the winding resistances. Is it correct to say...
  3. ProfT

    Stepping on electrical cables

    I recently had an incident where one of our mine operatives stepped on a submersible cable and it exploded (We later discovered that the cable was scavenged from the scrap yard). This cable was only carrying 20 A. My initial thought was to bar everyone from stepping on cables even armoured XLPE...
  4. ProfT

    Notified Maximum Demand

    I'm a graduate Electrical engineer and I just started working for a mining company. My boss told me about the plans he has of increasing the mine's Notified Maximum Demand. However he does not really have any idea as to how to calculate the NMD. In the past, he relied on his gut feeling. I was...

Part and Inventory Search

Back
Top Bottom