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Recent content by juanpedro

  1. juanpedro

    how to use freja 300 for testing delta directional comparison

    hi guys! this is my second time posting a question. I was very thankful because my first thread(question) was entertained and answered by several members in this great forum. this is my question: how to use freja 300 for testing delta directional comparison which is one feature of micom P443...
  2. juanpedro

    HOW TO CONDUCT A BACK ENERGIZATION TEST ON A POTENTIAL TRANSFORMER?

    Hi! thanks a lot to the following wonderful individuals who enlightened me a. rasevskii b. prc c. rcwilson d. oldfieldguy But as mr. rcwilson said "The purpose may have an impact on how you conduct the test. If the unit is already suspect and are trying to confirm that the HV winding has...
  3. juanpedro

    HOW TO CONDUCT A BACK ENERGIZATION TEST ON A POTENTIAL TRANSFORMER?

    THANKS A LOT old field guy for giving me some ideas. But I can't imagine as of now what sort of signs for breakdowns in the primary winding may appear if the PT is defective and how to determine these breakdowns? sorry for my ignorance, but i hope you can give me a clear idea on this matter...
  4. juanpedro

    HOW TO CONDUCT A BACK ENERGIZATION TEST ON A POTENTIAL TRANSFORMER?

    HI! I'VE BEEN A FREQUENT VISITOR OF THIS FORUM BUT NOW I JUST BECAME A MEMBER. MAYBE SOMEONE HERE CAN ANSWER MY QUESTION. QUESTION: HOW TO CONDUCT A BACK ENERGIZATION TEST ON A POTENTIAL TRANSFORMER? PLEASE HELPME ON THIS... THANKS IN ADVANCE...

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