MVLF C G d Di t ib tiWes Patterson, DOE Negotiating Committee, 14 Nov 2011MVLFCoreGradesDistributionImpact bysettingstandard at differenty gdEL Levels© ABBMonth DD, YYYY | Slide 1Impact of a new standard on the distribution of coresteel grades by MVA shippedsteelgradesbyMVAshipped2010STDdEL1-9%dEL2-15%dEL4-25%dEL5-37%dEL6-46%dEL3-18%1This illustrates theimpact on theconsumption of coresteel byrade asgthe result of a newefficiency standard2All grades to the leftof a dEL would berequired to meet themarket demand3Data shows theMVA by grade tothe left of a dEL4red ABBred=ABBcolored = OPS5Example shown isMVLF, 1ph, 50KVAwith a new standardset at dEL4setatdEL46In this example anefficiency standardset at dEL4wouldresult in only SAbeingossiblep© ABBMonth DD, YYYY | Slide 2MVLF Current Draft Efficiency LevelsThe following assumes the DL01 % efficiencyreduction applies to all designs© ABBMonth DD, YYYY | Slide 3MVA shipped by dELMVLFtotal ABB+PPI–totalABB+PPI1% of MVA shippedthat was>=dEL5 ... 2%dEL5...2%dEL4-dEL5 ... 2%dEL3-dEL4 ... 3%dEL2-dEL3 ... 4%dEL1-dEL2 ... 9%STD-dEL1 ... 80%2Volume complyingwith dEL5 = 2%3Volume complyingwith dEL4 = 4%4Vl lioume complyingwith dEL3 = 7%5 Volume complyingwith dEL2 = 11%6Volume complyingVolumecomplyingwith dEL1 = 20%7 Volume complyingwith STD = 100%5In the followingInthefollowingcharts the samplesize (and accuracy)decreases withincreasing dEL© ABBMonth DD, YYYY | Slide 4odEl1•dEL2OdELlodEl4.dELSSTU,,,,.,.,MVA shipped by Grade for different dEL StandardsMVLF Networks1ph and 3phMVLFNetworks–1phand3ph1ABB only producesthese with stackedcore2To meet the currentstandard anddimensionalconstraints requiresthe use of thehighest grade ofsteel available forstackedconstruction – onlylaser-scribed3S tti t d dSetting a standardeven to dEL1 forNetworks will bevery challengingand will result inutilization of asingle grade (H0)singlegrade(H04...No products produced at dEL4 or dEL5© ABBMonth DD, YYYY | Slide 5MVA shipped by Grade for different dEL StandardsMVLF Substations1ph and 3phMVLFSubstations–1phand3ph1ABB only producesthese with stackedcore2At the currentstandard level avariety of gradesare used but mainlyH0 and H1 (laserscribed)3Within recentproductiononly H0was used toachieve anffi i l l fefficiencylevelofdEL1 or higher – asole-sourcesituation4...5...No products produced at dEL4 or dEL5© ABBMonth DD, YYYY | Slide 6MVA shipped by Grade for different dEL StandardsMVLF Poles1ph and 3phMVLFPoles–1phand3ph1SA is not used byPPI for production2At dEL1 the volumedemand has shiftedfrom M3 to M23dEL1 and dEL2result in similardistributionsbetween M2 andM3 ...4... but by dEL3 therequired materialb il Mecomes mainlyM25Note that M2 supplyis dependent on theutilization of M35dEL1/2 will put adEL1/2willputastrain on thesupply of M2resulting from thereduced demandfor M3No productsproducedt dEL5a© ABBMonth DD, YYYY | Slide 7MVA shipped by Grade for different dEL StandardsMVLF Pads1ph and 3phMVLFPads–1phand3ph1At dEL1 about 55%of the steel wouldbe M3 and thebeM3andthebalance splitbetween M2 and SA2At dEL2 thedistribution is aboutevenly split betweenM2, M3 and SA3by dEL3 about 55%of the steel will havemoved to SA andthe remainderl lit b tevenly splitbetweenM2 and M34by dEL4 the bulk ofthe steel is SAfollowed by M2 but...5... M2 supply isdependent on theutilization of M3which would nolonger exist so inlongerexistsoinessence by dEL4 itwould all becomeSA6dEL3 would resultin a strain on the© ABBMonth DD, YYYY | Slide 8supply of M3/M2"'"dEL1omdEl(on>dELSoM2.fnOM605Anlut''''1'1'

# Power and productivity

for a better 

# worldTM