Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. IgorMakarov

    CT secondary load and tolerance

    I thout about additional wiring -- but it should have lenght hundreds meters. To use aux CTs is strictly prohibited by our norms for revenue meterind.
  2. IgorMakarov

    CT secondary load and tolerance

    Thanks. I can take the test reports from manufacturer if I buy new transformers. Actually, I have several projects, some of them involve old transformers and test reports inaviable. Let assume that a transformer has very good accuracy near zero load. But it is not a decision of my problem/ I...
  3. IgorMakarov

    CT secondary load and tolerance

    I live in Russia and we have own standards, but they were close to IEC. To bemore precisious, our standard for CTs based on IEC 44-1:1996 I think it not very important. There are similar statements in IEEE standards, too.
  4. IgorMakarov

    CT secondary load and tolerance

    I have a problem. I'm working on a design an AMR (Automatic Meters Reading) system. Our local standard for current transformers (wich are very close to IEC and IEEE standards) says that secondary load of a transformer must be between 25 to 100 %. If not, the transformer doesn't work in raited...
Back
Top