Reliability Assessment Results for No SONGS-Final

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1、2012/2013ISOReliabilityAssessment-FinalStudyResults(2013withoutSONGSscenario)StudyArea:SCEHigh/LowVoltageCategoryVoltage(PU)IDSubstationWorstContingencyCategoryPotentialMitigationSolutionsDescription2013N/AN/AInstall280MVARreactivesupportinsouthernOrangeCounty

2、area(thiscanbemitigatedbyinstalling280MVARSunrisePowerlink,systemadjusted,followedsynchronouscondensersatHuntingtonSCE-P-V-1SanOnofre230kVSwitchyardCL-1-1DivergebySouthwestPowerlink500kVlineBeachswitchyard).RMRdesignationofHuntingtonBeachunits3&4forconversiont

3、osynchronouscondenserscanhelpprovidethisreactivesupportneed.CaliforniaISO/MID/RTOctober31,2012Page1of32012/2013ISOReliabilityAssessment-FinalStudyResults(2013withoutSONGSscenario)StudyArea:SCEPost-TransientThermalOverloadsCategoryLoading(%)IDOverloadedFacility

4、WorstContingencyCategoryPotentialMitigationSolutionsDescription2013N/AN/ANorthGila-ImperialValley500kV,followedbyReconfigureBarre-Ellis230kVlinefrom2toSCE-PTT-1Barre-Ellis230kV#1(or#2)lineCL-1-1133%Barre-Ellis230kV#2(or#1)line4circuitsCaliforniaISO/MID/RTOctob

5、er31,2012Page2of32012/2013ISOReliabilityAssessment-FinalStudyResults(2013withoutSONGSscenario)StudyArea:SCEandSDG&EPost-TransientVoltageDeviationsCategoryPostCont.VoltageDeviation%IDSubstationWorstContingencyCategoryPotentialMitigationSolutionsDescription2013N

6、/AN/AInstall280MVARreactivesupportinsouthernOrangeCountyarea(thiscanbemitigatedbyinstalling280MVARsynchronouscondensersatSDG&E-P-V-SunrisePowerlink,systemadjusted,followedbyAllsubstationsinSanDiegoareaCL-1-1DivergeHuntingtonBeachswitchyard).RMRdesignation1Sout

7、hwestPowerlink500kVlineofHuntingtonBeachunits3&4forconversiontosynchronouscondenserscanhelpprovidethisreactivesupportneed.AllsubstationsinsouthernOrangeSunrisePowerlink,systemadjusted,followedbySCE-P-V-1CL-1-1DivergeSeeaboveCountyareaSouthwestPowerlink500kVlin

8、eMitigationforSCE-P-V-2andSCE-P-V-3includesinstallationofadditionalreactivesupportsatSameasabove,butwithHuntingtonBeachSantiago(80MVAR),Johanna(80MVAR)andSCE-P-V-2Viejo230kVand66kV