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Precise Power CorporationPrecise Power Corporation
WrittenWritten--PolePole Technology TechnologyTechnology With PurposeTechnology With Purpose
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WrittenWritten--Pole ProductsPole Products
SingleSingle--Phase MotorsPhase Motors
(15(15--100 HP)100 HP)
ThreeThree--Phase PowerPhase PowerSourceSource
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Precise Power Corporation:Precise Power Corporation:SummarySummary
Originator of patentedOriginator of patented WrittenWritten--PolePole TTechnologyechnology
HQHQ--Manatee County, Florida USAManatee County, Florida USA
HighHigh--tech electric motors and powertech electric motors and power HighHigh--tech electric motors and powertech electric motors and powerquality productsquality products
Enthusiastic reviews from industryEnthusiastic reviews from industryauthoritiesauthorities
Strong, proven field performanceStrong, proven field performance
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Technology PatentsTechnology Patents
8 US. Patents8 US. Patents 60+ Foreign Patents60+ Foreign Patents Terms to 2015 andTerms to 2015 and
beyondbeyond Additional patentsAdditional patents Additional patentsAdditional patents
pending or in processpending or in process Trademarks inTrademarks in
registration process inregistration process inU.S. and selectedU.S. and selectedforeign marketsforeign markets
Secure patent positionSecure patent position
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Technical RecognitionTechnical Recognition
Governors New ProductAward 1996, 2000
R&D 100 Significant TechnologyAward 1994
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AwardAward--Winning TechnologyWinning Technology
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NationalRural
Electric PowerResearch Institute
Partners
RuralElectricCooperativeAssociation
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A common problem for the powerA common problem for the powerindustry in rural areas is usuallyindustry in rural areas is usuallyPowering Large Horsepower LoadsPowering Large Horsepower LoadsPowering Large Horsepower LoadsPowering Large Horsepower LoadsFrom A Rural SingleFrom A Rural Single--phase Electricphase ElectricDistribution SystemDistribution System..
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Precise PowersPrecise Powers
Large HorsepowerLarge Horsepower WrittenWritten--PolePoleLarge HorsepowerLarge Horsepower WrittenWritten--PolePole
singlesingle--phase motors offer anphase motors offer anincredible solution to that problem.incredible solution to that problem.
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Single-Phase Motors UtilizingWritten-Pole Technology
Single-Phase Motors from 15-100 HPHigh Efficiency - High Power Factor
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What is it aboutWritten-Pole Technology that isdifferent from conventionaldifferent from conventionaltechnology?
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A/C Synchronous MachineConventional Technology
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A/C Synchronous MachineOverlay
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A/C Synchronous MachineWritten-Pole Design
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A/C Synchronous MachineWritten-Pole Design
Exciter
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BASIC WRITTENBASIC WRITTEN--POLEPOLE MotorMotor
Stator ConstructionStator Construction
cast frame constructioncast frame construction
electrical steelelectrical steellaminationslaminations
copper stator windingscopper stator windingscopper stator windingscopper stator windings
Rotor ConstructionRotor Construction
steel shaft with bearingssteel shaft with bearings
electrical steelelectrical steellaminationslaminations
carbon steel rotor cagecarbon steel rotor cage
ferrite magnet layerferrite magnet layerWRITTEN-POLE TECHNOLOGY
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What is it about theWhat is it about theWrittenWritten--PolePole Technology thatTechnology thatWrittenWritten--PolePole Technology thatTechnology that
helps a power supplier?helps a power supplier?
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ItsIts Advanced Motor DesignAdvanced Motor Design..
Low starting current requirementsLow starting current requirements
Less than 2 times rated currentLess than 2 times rated current
Results in
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Here are examplesHere are examplesof tests that show how theof tests that show how theof tests that show how theof tests that show how the
technology performs differently.technology performs differently.
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LOCKED ROTOR TEST
140
150
160
240
250
260
100
110
120
130
140
0 5 10 15 20 25
Time (s)
Curr
ent
(A)
200
210
220
230
240
Vo
ltage
(V)
Inrush Current
Rated Voltage
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SYNCHRONOUSMODE
(EXCITERCONTROLLED)
HYSTERESISINDUCTIONSTARTING
MODE
Written-Pole Motor Torque CharacteristicsStarting & Acceleration
100%TORQUE
SPEED SYNCHRONOUSSPEEDStarts very large loads
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1.7 p.u.1.8
1.0
1.4
Written-Pole Motor Start CharacteristicsLine Start Input Amps (per unit)
ExciterOn
SynchronousSpeed
20 40 80 100 12060 Time (seconds)0
0.6
Very low starting current
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Efficiency at Rated Voltage Vn, Ve = 216 V and Ve = 264 V
0.9
0.95
1
Eff
icie
nc
y(%
)
0.7
0.75
0.8
0.85
0.25 0.5 0.72 1 1.16 1.3Power (%)
Eff
icie
nc
y(%
)
Efficiency Vn Efficiency. Ve=216 V Efficiency Ve=264 V
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WrittenWritten--PolePole
Motors feature lowMotors feature lowstarting currentstarting current..
1 PH 30 HP. 198 AMP @ 230V1 PH 30 HP. 198 AMP @ 230V
versus a 3 HP conventional singleversus a 3 HP conventional single--phase motorphase motor
1 PH 3 HP..176 AMP @ 230V1 PH 3 HP..176 AMP @ 230V
Another example is our 100 hpAnother example is our 100 hpsinglesingle--phase Writtenphase Written--PolePole motor uses about themotor uses about the
samesame starting kVAstarting kVA as a conventional 10 hpas a conventional 10 hpsinglesingle--phase motor.phase motor.
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WrittenWritten--PolePole Motors featureMotors featureHigh EfficiencyHigh Efficiency..
100 HP 95.5% @ full load100 HP 95.5% @ full load
Equivalent to a premium efficientEquivalent to a premium efficientthreethree--phase motor.phase motor.
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Benefits to UsersBenefits to Users
LowerLower costscosts toto runrun WrittenWritten--PolePole motorsmotors
!!!! VeryVery HighHigh EfficiencyEfficiency == LowLow $$$$$$ forfor Power!!Power!! Low,Low, LowLow StartingStarting CurrentCurrent == EasyEasy StartingStarting
HighHigh powerpower factorfactor == SmallerSmaller DistributionDistribution WireWireHighHigh powerpower factorfactor == SmallerSmaller DistributionDistribution WireWire
VeryVery lowlow harmonicsharmonics == BetterBetter PowerPower QualityQuality
SingleSingle--phasephase ratherrather thanthan 33--phasephase
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Benefits to UtilitiesBenefits to Utilities
LowerLower costscosts toto serveserve WrittenWritten--PolePole loadsloads LowerLower startingstarting currentscurrents
HighHigh powerpower factorfactor
VeryVery lowlow harmonicsharmonics
ReducedReduced costcost ofof newnew distributiondistribution systemssystemsReducedReduced costcost ofof newnew distributiondistribution systemssystems SingleSingle--phasephase ratherrather thanthan 33--phasephase
Reduced cost of distribution upgradesReduced cost of distribution upgrades Remote 3Remote 3--phase sources rather than line extensionsphase sources rather than line extensions
Growth in energy market shareGrowth in energy market shareDisplacement of nonDisplacement of non--electric energy sourceselectric energy sources
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Social and EnvironmentalSocial and EnvironmentalBenefitsBenefits
Less costly electrificationLess costly electrification
Motors large enough to help grow ruralMotors large enough to help grow ruraleconomieseconomieseconomieseconomies
Displacement of dirty fossil fueled engineDisplacement of dirty fossil fueled engine
Elimination of the need for 3Elimination of the need for 3--phase linesphase lines
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APPLICATIONSAPPLICATIONSAPPLICATIONSAPPLICATIONS
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SingleSingle--Phase linePhase linein the center of a section.in the center of a section.
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Colorado installation afterColorado installation afterengine removal. First of three motors.engine removal. First of three motors.
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Two of three 100 hp motors onTwo of three 100 hp motors on oneonesinglesingle--phase line.phase line.
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Third of three 100 hp motorsThird of three 100 hp motors --before and after installation.before and after installation.
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50 hp in Springfield, Colorado50 hp in Springfield, Colorado
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GRAIN HANDLINGGRAIN HANDLING 30 hp, 230 volts30 hp, 230 volts
Pneumatic ConveyingPneumatic Conveying 500500 -- 1500 bushels/hr1500 bushels/hr
5050 -- 450 feet conveying450 feet conveying
Centralized StorageCentralized Storage 15 storage bins15 storage bins
Grain dryerGrain dryer Grain dryerGrain dryer
Fully automatedFully automated
Benefits to CustomerBenefits to Customer High horse powerHigh horse power
Electric motor onElectric motor onSingleSingle--PhasePhase
Reduced cost of serviceReduced cost of service
Lower operating costsLower operating costs
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75 hp single75 hp single--phase Writtenphase Written--PolePole motormotoron pivot irrigation.on pivot irrigation.
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60 hp in Kansas60 hp in Kansas
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50 hp with a belt drive in Kansas.50 hp with a belt drive in Kansas.
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IRRIGATIONIRRIGATION 250 hp, 460 volt (four motors)250 hp, 460 volt (four motors)
Utility ServiceUtility Service
ThreeThree--phase $250,000 largephase $250,000 largeIrrigation ProjectIrrigation Project
1600 gpm, 24 hrs/day1600 gpm, 24 hrs/day
Supplies two pivots (six total)Supplies two pivots (six total)
Cost of Utility ServiceCost of Utility Service Cost of Utility ServiceCost of Utility Service
ThreeThree--phase $250,000 minphase $250,000 min
SingleSingle--phase $40,000phase $40,000
Innovative InstallationInnovative Installation
Two(2) 75 hp floating pumpsTwo(2) 75 hp floating pumps
Two(2) 50 hp booster pumpsTwo(2) 50 hp booster pumps
Two parallel 8 supply linesTwo parallel 8 supply lines
220 foot rise from river220 foot rise from river
SingleSingle--phasephase
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50 hp Grain Drying50 hp Grain Drying
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Grain HandlingGrain Handling
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30 hp single30 hp single--phase motor on grain harvester.phase motor on grain harvester.
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GRAIN DRYINGGRAIN DRYING 75 hp, 1800 rpm, 460 volt75 hp, 1800 rpm, 460 volt
Large Tower DryerLarge Tower Dryer High capacity corn dryingHigh capacity corn drying
Generally 3 installationGenerally 3 installation
Benefits to CustomerBenefits to Customer Significant capacitySignificant capacity
increaseincrease
Custom drying (revenue)Custom drying (revenue)
No need for threeNo need for three--phasephase
Reduction in installationReduction in installationcostcost
Benefits to UtilityBenefits to Utility Lower cost of serviceLower cost of service
Additional revenueAdditional revenue
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BARN VENTILATIONBARN VENTILATION--30 hp, 230 volt30 hp, 230 volt
Poultry OperationPoultry Operation 60,000 laying hens60,000 laying hens
24 hours/day24 hours/day
Fresh Air DistributionFresh Air Distribution Critical to operationCritical to operation
Benefits to ProducerBenefits to Producer Benefits to ProducerBenefits to Producer Eliminates threeEliminates three--phasephase
needneed
Low starting currentLow starting current
High operatingHigh operatingefficiencyefficiency
Reduction in serviceReduction in servicesizesize
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30 hp for lake aeration.30 hp for lake aeration.
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Our first installation on golf course irrigationOur first installation on golf course irrigation 30 hp single30 hp single--phase.phase.
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30 hp single30 hp single--phase motor on peanut and cotton farm.phase motor on peanut and cotton farm.
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New ApplicationsNew Applicationsin thein thein thein the
Oil & Gas IndustriesOil & Gas Industries
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60 hp single60 hp single--phase on oil well beam pump.phase on oil well beam pump.
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Salt Water InjectionSalt Water Injection --50 hp Single50 hp Single--PhaPhasese
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Our WrittenOur Written--PolePole motor replacedmotor replacedtheir 30 hp threetheir 30 hp three--phase andphase and
phase converter.phase converter.
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Salt Water InjectionSalt Water Injection--75 hp Single75 hp Single--PhasePhase
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Our WrittenOur Written--PolePole motormotor replacedreplacedtheir 60 hp threetheir 60 hp three--phase andphase and
phase converter.phase converter.
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50 hp compressor package50 hp compressor package
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11--toto--3 Power Source3 Power SourceOld Design New DesignOld Design New Design
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ThreeThree--Phase Power Source FromPhase Power Source FromSingleSingle--Phase PowerPhase Power
60 HP Single60 HP Single--Phase WrittenPhase Written--Pole MotorPole Motor(Input)(Input)
Driving a Rugged 50kva/40kw ThreeDriving a Rugged 50kva/40kw Three--PhasePhase
Generator (Output)Generator (Output)Generator (Output)Generator (Output)
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New design in Sizes ofNew design in Sizes of50kva/40kw50kva/40kw--65kva/52kw65kva/52kw--90kva/72kw90kva/72kw
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11--toto--33TMTM Power ConverterPower Converter
Large HP singleLarge HP single--phase Writtenphase Written--PolePole motormotorcoupled with conventional 3coupled with conventional 3--phase generatorphase generator
!!! Single!!! Single--phase power in, 3phase power in, 3--phase out !!!phase out !!!
coupled with conventional 3coupled with conventional 3--phase generatorphase generatorDrives multiple 3Drives multiple 3--phase systems andphase systems and
motorsmotorsUnity power factor; with a low starting currentUnity power factor; with a low starting current
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11--toto--33TMTM Power ConverterPower Converter
Better power quality than conventionalBetter power quality than conventionalconvertersconvertersconvertersconverters
Uses existing single phase utility linesUses existing single phase utility linesFAST way to provide 3FAST way to provide 3--phasephase
(permanently or temporarily)(permanently or temporarily)
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Applications forApplications for11--toto--33TMTM Power SourcePower Source11--toto--33TMTM Power SourcePower Source
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11--toto--33
Power Source atPower Source atSanta Rita AbbeySanta Rita Abbey
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Santa Rita AbbeySanta Rita Abbey
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11--toto--33 at Sunny Side Farmsat Sunny Side Farms
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ThreeThree--Phase Load atPhase Load atSunny Side FarmsSunny Side Farms
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San Luis Valley COSan Luis Valley CO--OPOP
11--toto--3 Power Source3 Power Source
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San Luis Valley COSan Luis Valley CO--OPOP
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Anywhere three-phase power is notavailable
Dairy / Farm automation
Broadcast towers
Cable TV head ends
Saw mills
Rural 911 centers
Rural manufacturing
Radars
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Review of Written-Pole
Motor Features
Low starting currentVery High operating efficiencyExcellent torque characteristicsExcellent torque characteristicsExcellent power factorAbility to start high inertia loadsSynchronous operationAbility to re-synchronize under load after pull-out
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Questions????Questions????