electrical design dev.ppt

8/17/2019 Electrical design Dev.ppt

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Initial Design DiscussionInitial Design DiscussionWhat the Project Engineer NeedsWhat the Project Engineer Needs

to Knowto Know


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NJWEA Technology TransferNJWEA Technology TransferSeminarSeminar!"Se#"$%!"Se#"$%

Agenda Agenda

What the Project Engineer Needs to KnowWhat the Project Engineer Needs to KnowElectrical Design ElementsElectrical Design Elements

The &oadThe &oadThe SourceThe SourceProtectionProtection'onitor and (ontrol'onitor and (ontrol

SummarySummary) * A) * A


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What the Project Engineer NeedsWhat the Project Engineer Needsto Knowto Know

Information from the P' , The &oad &istInformation from the P' , The &oad &istWhat are the loads-What are the loads-

'otors'otors.eaters.eaters

What are the h# or /w ratings-What are the h# or /w ratings-Where are they located-Where are they located-

0utdoors0utdoorsIndoorsIndoors

What is the classification of theWhat is the classification of the

area-area-Is a control #anel s#ecified-Is a control #anel s#ecified-


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The &oadThe &oad

2tili3es #ower2tili3es #ower45oltage and current645oltage and current6.as electrical ratings.as electrical ratings'ust 7e #rotected'ust 7e #rotected

'ust 7e controlled'ust 7e controlled(an 7e monitored(an 7e monitored

8 9aldor Electric (o:

8 &DPI; Inc:


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le?i7ility; relia7ility; continuity; and safety>le?i7ility; relia7ility; continuity; and safety0#eration and maintenance0#eration and maintenanceS#ecial re=uirements associated with theS#ecial re=uirements associated with the#rocess and #rocess en5ironment#rocess and #rocess en5ironment&egally re=uired; o#tional&egally re=uired; o#tionalstand7y@emergency systemsstand7y@emergency systemsEnergy conser5ation and D0E com#lianceEnergy conser5ation and D0E com#liance


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Electrical Design ElementsElectrical Design Elements

Ser5ice; distri7ution; and utili3ationSer5ice; distri7ution; and utili3ation5oltages and 5oltage regulation5oltages and 5oltage regulation

Electrical Site #lanElectrical Site #lan2tility connections2tility connections


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Electrical Design De5elo#mentElectrical Design De5elo#ment>or new facilities #ower design>or new facilities #ower design

Determine total #lant load 47uilding and #rocess6Determine total #lant load 47uilding and #rocess6De5elo# single line diagramDe5elo# single line diagram'odel loads'odel loadsE5aluate #rotecti5e de5ice settings and coordinateE5aluate #rotecti5e de5ice settings and coordinate

Document final #rotecti5e settingsDocument final #rotecti5e settings>or e?isting facilities #ower design>or e?isting facilities #ower design

Document e?isting conditions , confirm and re5ise e?isting singleDocument e?isting conditions , confirm and re5ise e?isting singleline diagramline diagramE5aluate the system and #re#are a re#ortE5aluate the system and #re#are a re#ort

2#date single line diagram2#date single line diagramIm#lement recommendationsIm#lement recommendations'odel new loads on the e?isting system and re"e5aluate'odel new loads on the e?isting system and re"e5aluateDocument #rotecti5e settingsDocument #rotecti5e settings


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The Power SourceThe Power Source

>lywheel 2PS8 &ie7ert

Engine Benerator Set8 (ummins Power Beneration

Pole 'ounted Transformers Pad 'ounted Transformers


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(urrent installations(urrent installationsincludeinclude

Bo5ernmentBo5ernment

telecommunicationstelecommunicationsand data storageand data storagecenterscenters'edical facilities'edical facilities

National tele5isionNational tele5isionnetwor/snetwor/s

>lywheel 2PS


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Ad5antages Ad5antagesSmaller foot #rintSmaller foot #rintBreen technologyBreen technology

Non to?icNon to?icNon corrosi5eNon corrosi5e

)uiet o#eration)uiet o#eration&ower long term costs&ower long term costs

>lywheel 2PS


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Disad5antagesDisad5antages.igher initial cost.igher initial cost

Short term loadingShort term loadingE?am#le The Pentadyne FSSdc unit at W9GH is rated atE?am#le The Pentadyne FSSdc unit at W9GH is rated at

!$ /ilowatt for + seconds:!$ /ilowatt for + seconds:

htt# @@www:energyand#owermanagement:com@(DA@Articles


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Substation13.2kV; 69kV; 115kV

Plant Distribution4160V; 480V; 208V

Control120V

Signal24V

Nominal System FoltagesNominal System Foltages


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Wor/ing (learancesWor/ing (learancesunder !$$Funder !$$F

NE( $$<

(learances shall7e #ro5ided* maintained to#ermit ready and

safe o#erationand maintenance

E?amination Adjustment Ser5icing 'aintenance


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Wor/ing (learancesWor/ing (learancesunder !$$Funder !$$F

2005 NEC rti!l" 110.26S#a!"s bout El"!tri!al E$ui#%"nt 4(6 Entrance to Wor/ing S#ace:4 6 &arge E=ui#ment: >or e=ui#mentrated ; $$A or more; an entrancemeasuring not less than 1 in: wideand ! @ ft high; is re=uired at eachend of the wor/ing s#ace: Where theentrance to the wor/ing s#acehas a door; the door must o#en out and7e e=ui##ed with #anic hardware orother de5ices that o#en under sim#le#ressure:

This material was e?tracted from 'i/e .olt Training'aterials co#yright $$% 7y #ermission:Fisit www:NE((ode:com or call : :NE(:(ode4!+ " !++6 for more information:

NEC &

2002

http://www.neccode.com/http://www.neccode.com/


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Wor/ing (learancesWor/ing (learanceso5er !$$Fo5er !$$F

NE( $$<


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ProtectionProtection>i?ed Tri# 4In5erse Time6>i?ed Tri# 4In5erse Time6


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ProtectionProtection

&ow Foltage >uses uses


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ProtectionProtection(ircuit 7rea/ers tested to show arc(ircuit 7rea/ers tested to show arcflash ha3ard ris/ category asflash ha3ard ris/ category asreferenced 7y N>PA%$Ereferenced 7y N>PA%$E

$$ A to !$$$ A frames; fi?ed and$$ A to !$$$ A frames; fi?ed anddraw"outdraw"outGated for A( 5oltage systemsGated for A( 5oltage systemsthrough !$$ F 4!+< F ANSI6through !$$ F 4!+< F ANSI6Fisual contact wear indicatorsFisual contact wear indicators>ield"installa7le accessories>ield"installa7le accessoriescommon to all standardscommon to all standards>our interchangea7le 'icrologic>our interchangea7le 'icrologictri# units to choose fromtri# units to choose from

A5aila7le Power&ogic 7ased A5aila7le Power&ogic 7ased#ower metering and monitoring#ower metering and monitoringca#a7ilitiesca#a7ilities

A5aila7le #rotecti5e relay functions A5aila7le #rotecti5e relay functionsas defined 7y ANSI (+%: andas defined 7y ANSI (+%: and(+%:C$(+%:C$

Power (ircuit 9rea/ers with Arc >lash Protection

8 S=uare D


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ProtectionProtection

'edium Foltage >uses'edium Foltage >usesE rated 4transformers and feeders6E rated 4transformers and feeders6>ast"acting>ast"acting

G rated 4motor circuit #rotection6G rated 4motor circuit #rotection6. * N 4high surge6. * N 4high surge6K 4fast6K 4fast6T 4slow6T 4slow6


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'onitor and (ontrol'onitor and (ontrol

'eters'eters2tility and su7meters /W"h2tility and su7meters /W"hFoltage " 5oltmetersFoltage " 5oltmeters

(urrent " ammeters(urrent " ammeters>low , flow meters>low , flow meters


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>or 'otor &oads>or 'otor &oadsFaria7le >re=uency (ontrollersFaria7le >re=uency (ontrollersGeduced Foltage StartersGeduced Foltage StartersDelta"Wye StartersDelta"Wye Starters


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>or Process De5ices>or Process De5ices(ontrol Fal5es(ontrol Fal5esPressure SwitchesPressure Switches&e5el Switches&e5el Switches


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SummarySummaryElectrical systems re=uire #rotectionElectrical systems re=uire #rotection

Electrical #rotectionElectrical #rotection05er current05er current

05er 5oltage05er 5oltagePhase re5ersalPhase re5ersalTransientsTransients

Physical #rotection from the en5ironmentPhysical #rotection from the en5ironment

NE'A rated enclosuresNE'A rated enclosures


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SummarySummary&oad lists are used to de5elo# integrated; system documents&oad lists are used to de5elo# integrated; system documentsSingle line diagrams , #owerSingle line diagrams , #ower

2sed for road ma#s for the facility2sed for road ma#s for the facilitySafe shut downsSafe shut downs(lear o#erations(lear o#erations

2sed for short circuit and coordination studies2sed for short circuit and coordination studiesBuide for im#act studiesBuide for im#act studies

Process *Instrumentation DiagramsProcess *Instrumentation Diagrams(ontrol(ontrol

'onitoring'onitoring


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DiscussionDiscussion

Than/ Mou


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Ac/nowledgements Ac/nowledgements

electrical design dev.ppt

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