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EnergySavingOpportunitiesforTransformers

AasitM.Naik

VoltampEnergySAOG,Oman

WestAsiaCopperForum

GrandHyatt Dubai

May5,2010

May5,2010

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1KW

Energy

saved

=

2KW

of

Energy

Generated

1KW

Energy

saved

=

2KW

of

Energy

Generated

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Content

OmanOverview

ElectricityinOman

EnergyDemand/Projects

Needfor

Energy

Efficiency

T&DLosses

Advantages

of

Energy

Efficiency Whatsthecatch?

OmanOverview

Electricityin

Oman

EnergyDemand/Projects

Needfor

Energy

Efficiency

T&DLosses

Advantages

of

Energy

Efficiency Whatsthecatch?

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OmanOverview

Area : 309,550sqkm.

Population : 2,845,000[2009e]

GDP(PPP) : $74.431Bn[2009e]

PerCapita

: 25,109

USD

GDP(Nominal): $53.395Bn

Installed

capacity

: 4,360

KW

[2009]

Area : 309,550sqkm.

Population

: 2,845,000[2009e]

GDP(PPP) : $74.431Bn[2009e]

PerCapita

: 25,109

USD

GDP(Nominal): $53.395Bn

Installed

capacity

: 4,360

KW

[2009]

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OmanInstalled

Capacity

KW

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Description 2009 2010p 2011p 2012p 2013p

InstalledCapacity 4,360 4,412 5,291 5,770 6,179

GrossGeneration 3,523 3,474 4,134 4,586 4,960

DesalinationandAuxiliaryLoad 166 166 174 178 200

NetGeneration 3,357 3,308 3,959 4,407 4,760

ExternalInfeed 40 501 464 468 546

Load 3,325 3,719 4,326 4,801 5,223

GridLosses

72.5 90.4 97.1 74.2 83.1

GridLosses(%) 2.1 2.4 2.2 1.5 1.6

LoadGrowthRate(%) 12 16 11 9

OmanElectricityScenario MW

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TransformerTenderrequirementsplannedbyOTEC&

Utilities(MVA)

Description 2010 2011 2012

220kVTransformers 576 500

132kV

Transformers 1,846

2,516

3,626

33kVTransformers 810 515 900

11

kV

Transformers 1,786

1,875

1,969

TOTALMVA 4,442 5,482 6,995

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WhyTransformer

Efficiency?

LossesoccuratallstagesfromGenerationto

Transmissionto

Distribution

SavingspotentialexistsforOman

Technologyexists

using

better

grades

of

CRGO&optimizationofDesigns

Oileconomieshavepotentialforspendingfor

betterefficiency.

Capacity

to

spend

would

declinewiththedryingupofOil.

LossesoccuratallstagesfromGenerationto

Transmissionto

Distribution

SavingspotentialexistsforOman

Technologyexists

using

better

grades

of

CRGO&optimizationofDesigns

Oileconomieshavepotentialforspendingfor

betterefficiency.

Capacity

to

spend

would

declinewiththedryingupofOil.

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Transformer

efficiencySl.No. Rating Efficiency@0.8PF@0.75load

1 100kVA,11/0.433kV 97.68%

2 200kVA,11/0.433kV 98.21%

3 315kVA,11/0.433kV 98.61%

4 500kVA,11/0.433kV 98.84%

5 1000kVA,11/0.433kV 99.01%

6 1600kVA,

11/0.433

kV 99.02%

7 2000kVA,11/0.433kV 98.88%

8 3MVA,33/11.5kV 99.13%

9 6MVA,33/11.5kV 99.29%

10 10MVA,33/11.5kV 98.32%

11 20MVA,33/11.5kV 99.31%

11 125MVA,132/33kV 99.59%

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Lossesin

distribution

transformers

Noloadloss,orironloss(NL)

Loadloss,

or

copper

loss

(LL)

DCloss

Extralosses

eddycurrentlossinwindings

strayloss

Otherlosses

(ventilation,

)

Noloadloss,orironloss(NL)

Loadloss,

or

copper

loss

(LL)

DCloss

Extra

losses eddycurrentlossinwindings

strayloss

Otherlosses

(ventilation,

)

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Noloadloss

Extraloss

Resisitiveloss

Conventionalload

lossexclharmonics

Extraloss

due

to

harmonics

Unloaded Ratedload Actualload Actualload

(exclharmonics) (inclharmonics)

Loadloss

Lossesin

distribution

transformers

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EvolutionofCRGOmaterial

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SavingsDue

To

Lower

Losses

May5,2010

Transformer Rating: 1000KVAEff at 75% Load &

0.8 pf 99.30% 98.84%

Low Loss Transformers Standard Transformer

No Load Loss (NLL) in Watts 1200 1500

Load Loss (LL) in Watts 6000 8000

Loss Load Factor (LLF) 0.75

Number of days transformer operating 365

NLL Saved LL Saved Annual savings in KWH

Watts Watts Due to NLL with LLF* Due to LL with LLF* Total kWH

300 2000 2,628 13,140 15,768

Energy saved inKWH 15,768 kWh

Cost of Energy 0.02RO

Total AnnualSaving 315 RO

For 30 years 9,461 RO ( $ 24,586)

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Extremecases

HighlossDesign LowlossDesign

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Conductormaterials

CuandAltransformerscanbebuilttocomply

tothe

same

performance

and

quality

standard

Ingeneral,useofCuleadsto:

heavier,but

more

compact

windings

asmallercore

a

smaller,

more

compact

transformeralowernoiselevel

lessoilcontent

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Advantages Saveenergy

BetterShort

circuit

withstand

(bigger

mass)

Saveemissions Noise

Reducedheating

Improvedlifetime Reliability

Morerobust

against

harmonics

Paybackinapprox.6yearsforincrementalcost

Saveenergy

BetterShort

circuit

withstand

(bigger

mass)

Saveemissions Noise

Reducedheating

Improvedlifetime Reliability

Morerobust

against

harmonics

Paybackinapprox.6yearsforincrementalcost

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Whatsthe

catch?

Increasedcapitaloutlay Transformer

procurementcosts

will

go

up

by

50%

Commercialpolicyofsuppliers Premiumonbettergradesofmaterial

Fasteravailabilityofbetter/highergradesofCRGO

Smallamounts

The

Capitalization

rates

alreadyhigh.dximprovementstillpossible.

Increasedcapitaloutlay Transformer

procurementcosts

will

go

up

by

50%

Commercialpolicyofsuppliers Premiumonbettergradesofmaterial

Fasteravailabilityofbetter/highergradesofCRGO

Smallamounts

The

Capitalization

rates

alreadyhigh.dximprovementstillpossible.

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Energy&emissionsavingspotentialsrelatedto

transformers&

standby

power

Region EnergysavingsTWh/yr

CO2SavingsMilliontonne/yr

Source

EU 22 9 THERMIEC&EE 5 5 ECIUS 45 34China 47 52 IIECJapan 24 ToprunnerTotal 143 100

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PresentEnergyEfficiencyStandards

May5,2010

PresentlyOman buysTransformers

asperIEC/OES/DEPSpecifications

Efficiency

Levels

:

around

98

%

AverageEfficiencylevelsinDevelopedCountries :99.3 99.7%

AssumingOmancanimprovebyeven0.5%

Energysavedwillbe: 0.5%oftheconnectedload

AssuminganMVAof(refslide8)andaloadfactorof75%

This

will

mean

:

Saving

of

70,956,000

KWH

SavedinOMR :42,573,600atpresenttariff

PresentlyOman buysTransformers

asperIEC/OES/DEPSpecifications

EfficiencyLevels:around98%

AverageEfficiencylevelsinDevelopedCountries :99.3 99.7%

AssumingOmancanimprovebyeven0.5%

Energysavedwillbe: 0.5%oftheconnectedload

AssuminganMVAof(refslide8)andaloadfactorof75%

Thiswillmean:Savingof70,956,000KWH

SavedinOMR :42,573,600atpresenttariff

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AgenciesThat

Govern

May5,2010

DCRP forDistributionCos.(Majan/Mazoon/

MEDC/RAECo/DPC

OETC ForGeneration&TransmissionSectorfor

Voltagesabove33kV

PDO Follow

DEP

Specifications

Consultants EnergoProjects,Parsons,Mott

MacDonalds,Atkin,etc

OccidentalofOman GenerallyfollowPDO/DEP

Specifications

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Whatwill

be

Required

May5,2010

IntroduceLowLossconcept BothforNoLoadLoss

aswellasLoadLosstoachievemaximumefficiency

tothe

tune

of

99.5

to

99.7%

NoloadLosscanbebroughtdownfurtherbyusing

newlaserscribedmaterialsintroducedbytheMills

whichpromise

10

15%%

lower

W/kg

at

marginal

increaseincost

ReduceLoadlossesinthespecifications,additional

priceowing

to

extra

Copper

would

be

easily

offset

throughenergysavings.

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ProposedICA

Initiative

May5,2010

IntroduceEnergyEfficiencyconcepttotheRegulatorsandConsultantsthroughinitiativesbased

onglobal

experiences

and

best

practices

AwellcoordinatedprogramcanbedesignedtofinallycauseachangeinTechnicalSpecifications

Voltampwould

actively

support

ICA

initiatives

for

a

collaborativedialoguewiththeRegulatorsand

Consultants

Abusiness

Case

can

be

jointly

developed

by

Voltamp &ICA;whichICAcanthenpresentto

regulatorsona neutralplatform

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AbouttheSpeaker

AasitM.NaikAsst.GeneralManager Marketing&SalesVoltampEnergySAOG

AasitheadstheMarketing&SalesfortheVoltampGroupacrossMENAregion,responsibleforTransformer&SwitchgearPantsforRusaylPlants andthenew

SoharPowerPlant.AasitjoinedVoltampTransformersOmanLLCin 2004,aftera

longcareerof20yearsintheTransformersandSwitchgearIndustryinIndiaat

reputedmanufacturerslikeCromptonGreaves,EMCO,GEC(nowAREVA)and

VoltampIndia.

AasithasBachelorsDegreeinElectricalEngineeringandPostGraduateDiploma

inMarketingManagementandalsoacertifiedSAP SDConsultant

ContactDetails:

Tel:+968244472E203Fax:+968244471Mob:+96899337423

Email:aasit@voltampoman.com

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Thankyou

May5,2010