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  1. Champion

    Shunt trip coil = trip coil?

    Hey, experts: I think shunt trip coil = trip coil for breakers. Is that right? But I couldn't find some doc to convience my coworkers. Very appreciate your help.
  2. Champion

    Ampacities calculation of cables in ducts

    Thanks you all. It's really help me a lot.
  3. Champion

    Ampacities calculation of cables in ducts

    Could any online expert tell me some docs about Ampacities calculation of cables in ducts? Thanks.
  4. Champion

    Can I use the same CT for Main & BK Protection?

    Could any online expert tell me if I can use the same CT for Main & Backup protection for Transformer? As I think the Main & Backup protection should use different CT. But I have not enough sets of CT in current Transformer. I don't know if there is a standard shows Main & Backup protection...
  5. Champion

    Fault clearing time?

    Could anyone please tell me some information about the fault clearing time for 34kV substation? Primary Protection + CB Trip = ? Backup Protection + CB Trip = ? Thank you!
  6. Champion

    Substation Fault Calculation

    Sorry, It should be www.easypower.com
  7. Champion

    Substation Fault Calculation

    Thanks everyone, I get it and also I know a good software www.eazypower.com. Thanks again.
  8. Champion

    Substation Fault Calculation

    Please help me to find some references about substation falut calculation. 34.5kV Ring Bus (9 bus) with 3 Transformer, 60 mva of each. Thanks a lot

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