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Analysis of off-site power system for #1, #2 of shin go-ri NPP(Nuclear power plants)
  • Period
  • Jun. 2010 ~ Oct. 2010
  • Orderer
  • Korea Institute of Nuclear Safety

□ R&D description

▪ Review of load flow appropriateness
  - Calculation of load flow and voltage appropriateness analysis on offsite power system
  - Separation of bus, change of bus connected to New Gori Unit # 1 & 2 and comparative review of current-limiting reactor installation result

▪ Review of fault current
  - Fault analysis caused by separation of bus and change of bus connected to New Gori Unit # 1 & 2
  - Judgment of excess by comparing fault current and rated capacity of breaker
  - Comparative review of fault current fluctuation depending on the change of offsite power system

▪ Transient stability analysis
  - Transient stability analysis in relation with contingency generated in offsite power system
  - For contingency, the fault up to N-2 is simulated when there is an alternate path and he fault up to N-1 is simulated when there is no alternate path
  - Critical fault time is calculated by changing breaking time

  • List

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