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ApplicationofSEL-387inMainTransformerDifferentialProtection

  

  1. (1.PowerSupplyWorkshop,PowerEnergyCompany,KunmingIronandSteelCo.Ltd.Kunming650302,China;2.FacultyofElectricalEngineering,KunmingMetallurgyCollege,Kunming650033,China;3.YunnanCollegeofBusinessManagement,Kunming650106,China)
  • Online:2015-05-05 Published:2015-05-05

Abstract:

Inthispaper,theapplicationoftheSEL-387microcomputerprotectiondevicewasintroduced,whichwasfordifferentialprotectionofthemaintransformerinKunmingIronadsteelfourorfiveofthetotalstepdownsubstation.ProblemsandsolutionsthatencounteredfromDebuggingtooperationwerestudied.MattersneedingattentionintheapplicationofSEL-387microcomputerprotectiondeviceweregiven.

Key words: differentialprotection, electromagnetictype, microcomputerprotectiondevice

CLC Number: