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Recent content by meeko

  1. meeko

    Transformer K-factor Method.

    k factor of 1.0 is a linear load (no harmonics). above 1.0 begins to get non linear. can you post your calc to get 1.2
  2. meeko

    Transformer design

    what program do i need to open odlanor's document(.m)? interesting thread so far!
  3. meeko

    4000 Amp Bus Failure

    install bus duct. Megger bus duct. bus duct fails megger test. re assemble and test again, fails again then don't put in service or you are asking for trouble. and contact Schneider or eaton ect.
  4. meeko

    reverse power flow

    so did you find your answer? id be curious to see your work on this, as i can learn from it aswell :)
  5. meeko

    calculate 3 reach points on offset mho circle?

    hey there, was doing a reach test on a SEL relay today with a RCA of 79.6deg., Z1 = 1.43, after some calculations i came up with these values below. this worked fine for finding 1 single point of the offset mho circle. I couldnt figure out how to calculate another point on the circle to test at...
  6. meeko

    impedance circle calc help

    Thank you, this means a lot, I have been trying to learn relaying for a while and am currently on the subject of distance relaying, and the resources and help you guys gave me is greatly appreciated. The hardest thing for me is the resources, to find the right resources is tough to me. I have...
  7. meeko

    impedance circle calc help

    that's awesome, thanks for the reply! do you know any book that I can read to help me learn this to see how you got your answer?
  8. meeko

    impedance circle calc help

    hey, looking for some way to figure out the answer to this problem. but a source to learn it or an explained answer would be greatly appreciated. " - A simple single phase impedance relay is set for Z=(R-1)^2 + (X-2)^2 = 4. It protects 2 lines. The first line has an impedance of Z =.5 +j2. The...
  9. meeko

    PF question- hellp

    can anyone answer this problem for me, was asked it and i cannot get it right.. an industry has a load of 950kw with 57% PF. what is the value of reactive power flowing and what is the apparent power. I think-->( va= root(vars^2 + w^2) am i supposed to assume a voltage of 600v?
  10. meeko

    correct power factor with synchronous motor?

    Awsome, Thanks for the quick reply!
  11. meeko

    correct power factor with synchronous motor?

    Hi, I was wondering if anyone could give me an example how to correct power factor with a synchronous motor I know how to correct lagging pf with a capacitor bank, but in school never went over how to with a synchronous motor. If anyone has an example problem i could study with a 1500w synch...
  12. meeko

    4-20ma induced current - increasing values?

    ok, yah i will pick up a loop isolator before i go. Manual says use isolation on loop, and dont use isolation on loop? o well im picking one up today either way hopefully it will work. thanks for the help
  13. meeko

    4-20ma induced current - increasing values?

    thanks for the quick replay, sry should have descrbed better- the flow meter is connected but no flow- just sayed zeroed so people would no for sure its zero or no flow. and also yes the ion is 0-20, which means if there is less than 4mA then i go into negatives 0mA = 50, 4ma = 0, Also, yes...
  14. meeko

    4-20ma induced current - increasing values?

    Hey guys, got a good question that has me stumped. was at a trouble call for some odd readings from a flow meter. -So, there is a flow meter with a little propeller in a 6" pipe, this sends a frequency signal to a GF signet 5500 flow transmitter which also displays the flow consumption. -This...
  15. meeko

    splitter box on skm power tools-

    yah i used a bus, and will keep it there now, thanks for the quick reply
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