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Recent content by mntg

  1. mntg

    ABB TPU 2000R (Differencial Protection)

    Thank you for your comments, For your information the 87T (Harmonic restrained percentage differencial function) operated on the feeder fault. We are still looking at this problem. I will post the result when we figure out this problem.
  2. mntg

    ABB TPU 2000R (Differencial Protection)

    Any comments on ABB TPU 2000R application, problems or anything. ( Had a problem whith TPU 2000R operated on the feeder fault, tripped the transformer (230KV/27.6KV, 125MVA), dual winding. there is also SEL 387 as a backup which did not operate. Thanks,
  3. mntg

    advice

    mntg (Visitor) May 13, 2002 can someone tell me more about a Tx vault installation (3phase bank 3x500kva Wye-Wye. How is a neutral tied to ground on primary (H2) and secondary side (X2). thanks
  4. mntg

    transformer vault installation

    can someone tell me more about a Tx vault installation (3phase bank 3x500kva Wye-Wye.How is a neutral tied to ground on primary (H2) and secondary side (X2). thanks
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