IEC 60909-0 Short-circuit currents in three-phase a.c. systems - Calculation of currents

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3、lieude:CE160909-4,-Insteadof:IEC60909-4,-lire:CE1TR60909-4:2000read:IECTR60909-4:20001Apublier.Tobepublished.COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesPages30et32RemplacerlesfiguresIet2existantesparlesnouvellesfigures1et2suivant

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5、ciucuitcurrenti.__cTimeBottomenvelopemponentid,c,oftheshort-circuitcurrent----_BottomenvelopeCOPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesPage50Page51Remplacerl’équation(8)existanteparlaReplacetheexistingequation(8)bythenouvelleé

6、quation(8)suivante:followingnewequation(8):Page68Page69RemplacerladéfinitiondeZsoparcequisuit:ReplacethedefinitionofZsobythefollowing:Zsoestl’impédancecorrigéed’ungroupeZsoisthecorrectedimpedanceofapowerdeproductionsanschangeurdepriseenstationunitwithouton-loadtap-change

7、rchargecorrespondantaucôtéhautetension;relatedtothehigh-voltageside;Page114Page115Remplacerl’équation(76)existanteparlaReplacetheexistingequation(76)bythenouvelleéquation(76)suivante:followingnewequation(76):AU=jX;jiKCkGi-GiRemplacerl’équation(77)existanteparlaReplacethe

8、existing(77)bythefollowingnouvelleéquation(77)suivante:newequation(77):Février2002February2002COPYRIGHT