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  • Users: kwaedza
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  1. kwaedza

    REF sensitivity

    Can someone explain with an example how REF is more sensitive than normal differential protection?
  2. kwaedza

    Harmonics Studies Examples

    I am new to harmonics analysis and design and I am especially looking for simple examples in DigSilent, NEPLAN, Superharm or PTW, especially involving HVDC to AC system links. I am looking for already drawn prj, dz etc files I can load, run, modify and re-run. Please help? Also looking
  3. kwaedza

    ETAP 7 PV Bus

    I am new to ETAP and trying to set up a small example network. It's really small with 3 buses,i.e. one each of slack, PV and Load. The problem I have is with the generator connected to the PV bus. I tried to set to at P=60MW and V=1 p.u. Now V is correct, but P from the generator is always...
  4. kwaedza

    CT Saturation Test: : Should H1 and H2 be open?

    Would like to be sure about doing a CT Saturation Test. I am a ware that the best would be to apply a variable voltage at the secondary X1 and X2. But tel me, must H1 and H2 be left open or must shorted (this looks unlikely for testing large CTs inserted in transformer bushings or swtchgear...
  5. kwaedza

    Loading Diagrams for Composite Insulators

    I need to advise a manufacturer of composite insulators on the loading diagrams of braced / non braced insulators for use in high voltage application. Specifically I would like some opinion advice about whether one or how one can produce generic loading diagrams (based on horizontal, vertical...
  6. kwaedza

    Overhead Line Design

    Can any one lead me to the best resources for loads on overhead line insulator assemblies, in particular the modeling of braced post insulators. I understand finite elements may be necessary but I would want to know the underlining theory and also hopefully be advised on a freely available or...

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