Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Recent content by roliver

  1. roliver

    Compact transmission lines

    A good software from Power Line Design calld PLSCAD may address different specs for compact design. You might try this reference as well: http://powline.com/
  2. roliver

    Residential Power

    As with BESCOJIM response, most utilities size services on demand and from my experience #1/0, #4/0 or #350 UG or OH triplex condutors. Load Shape of your home, determines this demand. Again, most utilities do not supply the meter base (customer interface), but will provide the meter to go into...
  3. roliver

    Please explain volts, ohms, etc.

    Since the question asked is brief, I offer this; Voltage is the amount of stored electrical energy (potential) provided by an energy source and its units are given in Volts. Current is a unit of measure of an amount of energy charges passing through a given area for a specific time interval...
  4. roliver

    i am interested in installation and programming of plcs

    Kieran9, Referring to your #3 question; What is distributed control? If you are referring to adding more I/O drops through a distributed network off of one PLC's CPU, for control then basically you have two or more racks. In the first rack will be your Power Supply, CPU, various input &amp...
  5. roliver

    Unbalance three phase loads

    I think the question here should be how much voltage unbalance between phases in a delta load can be tolerated before excessive circulating current develops in the windings of the transformer. A delta-connected load served from a close delta connected secondary winding of a transformer that is...

Part and Inventory Search