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Recent content by woodstock12

  1. woodstock12

    Guide to plot the impedance plane (distance protection)

    Hi OliverJanke, ok. i will grab a unit of LFZR111 and test it tomorrow. thank you for pointing out the residual compensation, i believe it is the trouble too. regards, Woodstock
  2. woodstock12

    Guide to plot the impedance plane (distance protection)

    to OliverJanke, i downloaded the Omicron xrio converter, and Omicron rio converter from Omicron website. by using these xrio & rio converter, the Phase-Neutral impedance characteristic generated (by xrio or rio) did not match the relay characteristic. i suspect it might be my mistake in key-in...
  3. woodstock12

    Guide to plot the impedance plane (distance protection)

    Good day. i will be testing it with Omicron Advance Distance, and my problem is how the Phase-Neutral characteristic (Quad) is looking like in the relay. I managed to draw and the relay tripped correctly for Phase-Phase characteristic, however, i have problem on Phase-Neutral distance zone...
  4. woodstock12

    Guide to plot the impedance plane (distance protection)

    Dear all, I need to commission a few unit of LFZR111 relay. it is very old relay and i find it hard to understand its technical manual. i tried to use various RIO converter such as LFZRtest, Omicron RIO converter, and Omicron xrio, but all the outcome did not match relay characteristic. do...

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