general question- single line to ground fault

Discussion in 'General Electronics Chat' started by electric77, Mar 29, 2016.

  1. electric77

    Thread Starter New Member

    Mar 18, 2016
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    so in general i have a system that consists of 5 buses, and at bus 2 i have a single line to ground fault.
    what are the effects of adding a generator to any of the 5 buses except bus 2? (here all currents increase in the lines except for that where the current fault occurs my question is why?)
    also what if i add an extra line from bus 2 to bus 4 where the fault occurs? (all all of my currents in all phases and buses drop why?)
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    What is a bus? What are you generating? What did you drop?

    Perhaps some context would help explain what you mean.

    And welcome to the forums!
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,126
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    A system? I can't make heads or tails of your question without more detail than that.

    Scooped again by Ernie!
     
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  4. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Dude,
    Are you talking about a microcircuit on a printed circuit board or switch-gear in a factory?
     
  5. electric77

    Thread Starter New Member

    Mar 18, 2016
    9
    1
    so its a transmission system question:
    a bus=node

    in a transmission system we would transport power using a three-phase model (thus phase a, b, and c)
    now with that we could have faults where a line gets short circuited or ground etc

    my type of fault is single line to ground meaning phase a is grounded.

    i have simulated by circuit on a program called power world and iam looking at the results, but i was hoping to get some certification for why my currents would drop in all nodes except the fault node when i add an extra generator
     
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  6. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    I'm interested, Can you post the simulation results. Hopefully some type of graphic to show the standard case, (I imagine a standard 3-phase system (load may/may not be present). Then a fault-to-ground on "a", then you add additional generating power to one of the other two phases (and ground) (or across the other two phases) (or to all three phases?) - please clarify this fault and your additional generator.

    And I assume the additional generator is in-phase with the initial power.
     
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