1、April 2010 IEC/TR 61000-3-13(First edition 2008)Electromagnetic compatibility(EMC)Part 3-13:Limits Assessment of emission limits for the connection of unbalanced installations to MV,HV and EHV power systems C O R R I G E N D U M 1 Figure A.2 Replace the existing Figure A.2 by the following:Unbalance
2、 reduction factor(TuUM):HV and MV measurement00.20.40.60.811.21.41.61.8012345678DaysHV NPS Unbalance(%)MV NPS Unbalance(%)Power(p.u.on 20MVA base)Reduction FactorReduction in motor loading Unbalance reduction factor(TuUM):HV and MV measurement 0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 0 1 2 3 45678 Days
3、 HV NPS Unbalance(%)MV NPS Unbalance(%)Power(p.u.on 20 MVA base)Reduction FactorReduction in motor loading IEC 699/10 Figure A.2 Example of unbalance ratio measurement for a remote mine with largely motor loading LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.
