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  1. uconalpukat

    Starting Motor with Star Delta and Star DOL

    Can I get your recordings?
  2. uconalpukat

    Starting Motor with Star Delta and Star DOL

    @skogsgurra Thanks you for answer. Sorry, for my "student posting". I just want to get a lot reference about DOL and Y/D starter.
  3. uconalpukat

    Starting Motor with Star Delta and Star DOL

    Hi, I was wondering. Basic principal is DOL starter has a higher inrush current than STAR DELTA starter. Now, How about if I configure the DOL with STAR configuration. It will be same inrush current with STAR DELTA, or its still higher? PS: What does it mean of student posting in "start a new...
  4. uconalpukat

    What does RST stand for?

    Hi Skogsgurra, Yes, I asked RST at 3 phase system. RST and L1/L2/L3 also U V W in motor, it is just a letter or have any means? Like alfa, beta, gamma. It came from first letter of Yunani's alphabet. Like x, y and z. It came from last letter of alphabet.
  5. uconalpukat

    What does RST stand for?

    Hi, Simple question but I cannot got the answer. Why RST and What does RST stand for? Thank You, Uconalpukat
  6. uconalpukat

    Asking about Basic of Software ETAP

    @desrod ya, I will ask someone that experienced in ETAP to coach me. Thanks for your advice desrod. @michaelusa Ya, you are right my eff around 92.3%. I think is default for motor in ETAP. Thanks for your kind reply.
  7. uconalpukat

    Asking about Basic of Software ETAP

    @desrod I am new in power electric system also new in ETAP. You are right. I entering another %Z value in impedance of transformer and the result is different. Do you have any recommended link to learn power system (load flow) and also learn ETAP? I am glad if you have one for me. Thanks for...
  8. uconalpukat

    Asking about Basic of Software ETAP

    Hai, I'd attach file (pic of my simulation in ETAP) I have several question: 1. Look at transformer. Input of transformer has 325+147j and output has 323+139j. Why this thing happen? Transformer lost around 2 KW. 2. Motor need 300KW, but the input supply more than 300K, is 323+139j. Why this...
  9. uconalpukat

    ETAP Cable Zero Sequence Impedance for L-G faults

    I am new user in ETAP software. I hope I can learn any information about ETAP in this forum.

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