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  1. Jay Petersen

    25 MVA transformer protection

    Yes, 25MVA. I have 87t 50/51p,n,q Backup 50/51p,n,q The fuel cells put out 4x their FLA for exactly 1 cycle, then they shut down. So that would seem quick enough.
  2. Jay Petersen

    25 MVA transformer protection

    This is in the NESC world ... which is why I don't know much common practice. Not in a building at all, low side feeder is running down the road in a ductbank. Good idea, I did have a fleeting thought about relaying on the secondary to avoid the extra swgr. JP
  3. Jay Petersen

    25 MVA transformer protection

    Hello, I am an electrical power engineer with a strong design experience in Low and Medium voltage systems. Basically everything that is governed by the NEC. Presently working on some schematic designs for a fuel cell system that will connect to the grid at 69kv. Eventually there will be a...

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