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  • Users: Champion
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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

    Could any online expert tell me some docs about Ampacities calculation of cables in ducts? Thanks.
  3. 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...
  4. 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!
  5. 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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