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  1. edfilho78

    Digital relay

    I want any information about the safety related relays, because I don't have experience with these relays!
  2. edfilho78

    Digital relay

    Does anybody have experience about the use of digital relays for electrical systems in nuclear power plants? Thanks
  3. edfilho78

    69kV Line protection

    Dear Eleceng01 The line is radial and there is a parallel line. One of the end is a generation and i don't have information about the other end. Thanks
  4. edfilho78

    69kV Line protection

    We are developing a protection requirement to a power line of 69kV. This line is about 7 kilometer. Because of costs we use 50/51 protection and 67N to backup protection. Is this scheme efficient??? What are the disadvantages of it? Thanks Ed
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