Precise Power CorporationPrecise Power Corporation

WrittenWritten--PolePole Technology TechnologyTechnology With PurposeTechnology With Purpose

WrittenWritten--Pole ProductsPole Products

SingleSingle--Phase MotorsPhase Motors

(15(15--100 HP)100 HP)

ThreeThree--Phase PowerPhase PowerSourceSource

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

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

Technical RecognitionTechnical Recognition

Governors New ProductAward 1996, 2000

R&D 100 Significant TechnologyAward 1994

AwardAward--Winning TechnologyWinning Technology

NationalRural

Electric PowerResearch Institute

Partners

RuralElectricCooperativeAssociation

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..

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.

Single-Phase Motors UtilizingWritten-Pole Technology

Single-Phase Motors from 15-100 HPHigh Efficiency - High Power Factor

What is it aboutWritten-Pole Technology that isdifferent from conventionaldifferent from conventionaltechnology?

A/C Synchronous MachineConventional Technology

A/C Synchronous MachineOverlay

A/C Synchronous MachineWritten-Pole Design

A/C Synchronous MachineWritten-Pole Design

Exciter

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

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?

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

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.

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

SYNCHRONOUSMODE

(EXCITERCONTROLLED)

HYSTERESISINDUCTIONSTARTING

MODE

Written-Pole Motor Torque CharacteristicsStarting & Acceleration

100%TORQUE

SPEED SYNCHRONOUSSPEEDStarts very large loads

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

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

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.

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.

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

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

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

APPLICATIONSAPPLICATIONSAPPLICATIONSAPPLICATIONS

SingleSingle--Phase linePhase linein the center of a section.in the center of a section.

Colorado installation afterColorado installation afterengine removal. First of three motors.engine removal. First of three motors.

Two of three 100 hp motors onTwo of three 100 hp motors on oneonesinglesingle--phase line.phase line.

Third of three 100 hp motorsThird of three 100 hp motors --before and after installation.before and after installation.

50 hp in Springfield, Colorado50 hp in Springfield, Colorado

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

75 hp single75 hp single--phase Writtenphase Written--PolePole motormotoron pivot irrigation.on pivot irrigation.

60 hp in Kansas60 hp in Kansas

50 hp with a belt drive in Kansas.50 hp with a belt drive in Kansas.

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

50 hp Grain Drying50 hp Grain Drying

Grain HandlingGrain Handling

30 hp single30 hp single--phase motor on grain harvester.phase motor on grain harvester.

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

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

30 hp for lake aeration.30 hp for lake aeration.

Our first installation on golf course irrigationOur first installation on golf course irrigation 30 hp single30 hp single--phase.phase.

30 hp single30 hp single--phase motor on peanut and cotton farm.phase motor on peanut and cotton farm.

New ApplicationsNew Applicationsin thein thein thein the

Oil & Gas IndustriesOil & Gas Industries

60 hp single60 hp single--phase on oil well beam pump.phase on oil well beam pump.

Salt Water InjectionSalt Water Injection --50 hp Single50 hp Single--PhaPhasese

Our WrittenOur Written--PolePole motor replacedmotor replacedtheir 30 hp threetheir 30 hp three--phase andphase and

phase converter.phase converter.

Salt Water InjectionSalt Water Injection--75 hp Single75 hp Single--PhasePhase

Our WrittenOur Written--PolePole motormotor replacedreplacedtheir 60 hp threetheir 60 hp three--phase andphase and

phase converter.phase converter.

50 hp compressor package50 hp compressor package

11--toto--3 Power Source3 Power SourceOld Design New DesignOld Design New Design

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)

New design in Sizes ofNew design in Sizes of50kva/40kw50kva/40kw--65kva/52kw65kva/52kw--90kva/72kw90kva/72kw

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

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)

Applications forApplications for11--toto--33TMTM Power SourcePower Source11--toto--33TMTM Power SourcePower Source

11--toto--33

Power Source atPower Source atSanta Rita AbbeySanta Rita Abbey

Santa Rita AbbeySanta Rita Abbey

11--toto--33 at Sunny Side Farmsat Sunny Side Farms

ThreeThree--Phase Load atPhase Load atSunny Side FarmsSunny Side Farms

San Luis Valley COSan Luis Valley CO--OPOP

11--toto--3 Power Source3 Power Source

San Luis Valley COSan Luis Valley CO--OPOP

Anywhere three-phase power is notavailable

Dairy / Farm automation

Broadcast towers

Cable TV head ends

Saw mills

Rural 911 centers

Rural manufacturing

Radars

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

Questions????Questions????