The ongoing challenge is how to continually meet the

increasing demand for clean, reliable power. The more

we use computers, communications, and automation in

our daily lives, the more susceptible we become to

power quality disturbances.

For efficient, reliable, cost-effective voltage regulation,

voltage regulators from Cooper Power Systems (Cooper)

are the best solution. Our voltage regulators are used

throughout the world, offering distinct regulator types to

suit the needs of particular applications.

For more than 50 years, Coopers voltage regulator line

has been recognized as an industry leader for high

quality, superior performance, and unmatched service.

Our voltage regulators accurately keep voltage levels

within programmed limitsfor improved power quality

and valuable distribution automation databoth

automatically and inexpensively.

Our 32-step regulators and

controls have been an

industry standard for years

and are available in pole-,

platform-, pad-mounted and

substation configurations,

suitable for three- or

four-wire overhead and

underground systems.

So Whos Improving the Quality of Electricity? CooperThats Who.

As Electricity ContinuesTo Improve The Qualityof Life,

Whos Improving theQuality of Electricity?

2

Example: Total System Savings*

Regulator InstallationReduced communications configuration - CL-5 Series Control Communications Emulation $3,000$5,000

Monthly Maintenance CostsEliminate service trip to operate tap-changer - PMT Mode A $5,200$7,200

Reduce profiler download frequency - increased memory $2,000$3,600

Bi-Yearly Maintenance CostsEliminate service trip to operate reversing switch - PMT Mode B $800$1,200

Contact Wear Maintenance CostsExtend maintenance beyond 4 years or 100,000 operations - Duty Cycle Monitor

Removal from service cost (crew, crane, trucking) $5,000$7,500Shop costs (untank and inspect contacts) $1,000$1,500Return to service cost (crew, crane, trucking) $5,000$7,500

Removal from ServiceEliminate unplanned outage or failure due to over-worn contacts Duty Cycle Monitor Alarm $450,000$600,000

Savings over lifetime of 12 regulators Total $472,000$633,500

3

Predictable ProceedsSave time and money by improving maintenancecrew efficiency and scheduling with the Duty Cycle Monitor predictive maintenancefeaturenow standard in our Voltage Regulators. Thewinning combination of the CL-6A Regulator Controland Quik-Drive Tap-Changer allows you to collectdata to predict and accurately measure the tap-changercontact wear. Schedule maintenance based on anactual need rather than calendar cycles. Dont becaught by unplanned outages.

Profitable MaintenanceThe CL-6A Regulator Control in combination with theQuik-Drive Tap-Changer also allows for PreventiveMaintenance Tapping (PMT). To minimize theeffects of coking on tap-changer contacts and providea periodic operational check, you no longer need tosend a technician to the voltage regulator.

The two modes of the PMT feature tap automatically,using criteria you establish, such as when load islowat your convenience, day or night.

PMT also extends the life of the tap-changer contacts,reducing maintenance costs and minimizing crewtime.

Remote RewardsIn todays information world, Supervisory Controland Data Acquisition, or SCADA, enables you toanalyze your system and take action to reduce costsand improve performance from one control center.Cooper voltage regulators make communicating fastand easy. With their digital communications capabili-ty, any function that can be performed locally can beperformed remotely via phone or fiber-optic lines.

Feature Rich

* Associated costs may vary with each application and, for an unplanned outage, can include equipment replacement, crew time, cleanup costs, and lost revenue.

A Solid Performer

4

The advanced capabilities of the Cooper Quik-DriveTap-Changer complement the versatile design of theCL-6A Regulator Controlallowing for a complete,accurate, dependable voltage-regulating system. Theirunique integration delivers revolutionary functionality,performance, and increased system reliabilityallwhile improving your bottom line.

Quik-Drive tapping rotates through all 32 positions inless than 10 seconds. The

advanced design of theQuik-DriveTap-Changerdeliversamazing

speed,improved

contact life, and improvedpower quality.

SimpleFewer tap-changer parts: easier to assemble andrepair; fewer moving parts to fail or stock.

FastCorrect for a large voltage excursion quickly. Tapeight steps (5%) in just 4 seconds.

AccurateThe tap-changer Geneva Gear drive ensures accuratesteps without special calibrated springs. A tap-changerelectrical feedback circuit ensures accurate indicationof tap position by the CL-6A Regulator Control.

ReliableCooper voltage regulators offer the lowest regulatorcore and coil failure rate in the industrydepend onit. Uniform, computerized regulator tank cutoutsbank on it. Full-welded external parts to eliminate corrosion caused by moisture entrapmentrely on it.

Take Control

Only One ControlFor Easy,Cost -Efficient ControlReplacementOur Control Replacement Assembly (CRA) regulatorcontrol is designed to work with every U.S. manufac-tured voltage regulator out there, so its the only oneyoull ever need to stock, install, or train your person-nel to operate. Its also the one with the features and functions you need for easy, reliable, and trouble-free performance.

The CRA equipped with our CL-6A Regulator Controlis the latest evolution in our continuing commitment toprovide you the best regulator control technologyacommitment that dates back to 1954. We design anddevelop every aspect of the voltage regulator, includ-ing the control. We are also the largest producer ofmedium-voltage distribution equipment, componentsand systems.

Only oneand Cooper is it.

The Solution FactorWhether your needs range from technical product orapplication support from one of our experienced engineers, to site studies and system analysis from ourThomas A. Edison Technical Center, or a completeturn-key package from our Systems Integration Group,you can count on Cooper for innovative designs andintelligent solutions. With millions of voltage regulatorsoperating worldwide, we have the experience to meetthe increasingly sophisticated demands for system reliability and power quality.

Recognizing the value of working together, our custom services include hands-on classes and in-depthseminars. Our customers can confidently depend onour expertise, while we look to our customers to join usin identifying their future requirements.

Cooper Power Systems remains committed to improv-ing the quality of electricity with value-added features,high-quality standards and performance, all with afocus on industry needs.

5

Product Reference Guide*Voltage Current Design

Type/Mounting Rating Ratings kVA BIL Hz(V) (A)

2500/4330 grd Y 200668 50167 60 605000/8660 grd Y 100334 50167 75 60

6600/11430 grd Y 50300 33198 95 507620/13200 grd Y 50328 38.1250 95 60

Distribution 11000 50200 55220 95 5013800 50200 69276 95 60

14400/24940 grd Y 50200 72288 150 6015000 50150 75225 150 50

19920/34500 grd Y 50.2100.4 100200 150 6022000 50100 110220 150 50

2500/4330 grd Y 10001665 250416 60 605000/8660 grd Y 500833 250416 75 60

6600/11430 grd Y 300600 198396 95 507620/13200 grd Y 2191093 167833 95 60

11000 200600 220660 95 50Substation 13800 200604 276833 95 60

14400/24940 grd Y 200578 288833 150 6015000 150500 225750 150 50

19920/34500 grd Y 100.4502 2001000 150 6022000 100400 220880 150 5033000 50200 165660 200 5034500 50200 172.5690 200 60

2500/4330 grd Y 200600 50150 60 607620/13200 grd Y 50600 38.1457 95 60

Pad-mounted 11000 50500 55550 95 5014400/24940 grd Y 50463 72667 125 60

15000 50300 75450 150 5019920/34500 grd Y 50335 100667 150 60

22000 50200 110440 150 5034500 50200 172.5690 200 60

6

* Other designs available. Contact your Cooper Power Systems representative for details.

Whether you find Cooper voltage regulators in papermills, industrial parks, military bases, manufacturingplants, or at your local shopping mallyou can counton Cooper to bring you products that give you newfreedom in improving safety, increasing reliability andinnovative design.

Cooper pad-mounted voltage regulators in combina-tion with a revolutionary new dielectric coolant,Envirotemp FR3 fluid, further enhances safety,increases reliability, and reduces costspresentingthe public with a smaller, safer, and environmentallypreferred package.

Envirotemp FR3 fluid is the first dielectric coolantmade from edible seed oil to receive theEnvironmental Technology Verification (ETV) from theU.S. Environmental Protection Agency (EPA).

It has the industrys highest published flash and firepoints and the approval of Underwriters Laboratoriesand FM Global. And it is also proven to extend insu-lating paper life by 58 times.

All of which translates to immediate and sustainablecost savings for you. It means a higher margin of firesafety and less money spent on fire protection andsubstation design. It means spills are non-toxic*, highly biodegradable events. It means being able toload up your equipment more and run it longerdeferring the purchase of new equipment.

The combination of the Cooper pad-mounted voltageregulator and Envirotemp FR3 fluid allows you toincrease public safety and help protect the environ-ment, all while maximizing the reliability and perform-ance life of your capital investment.

A Valuable Combination

For more information, visit us at www.cooperpower.com/fr3

Revolutionary. Reliable. Responsible.

* Per OECD G.L. 203

Bulletin 04026 August 2004 New Issue

2004 Cooper Power Systems or its affiliates. FR3, PMT and Quik-Drive are trademarks of Cooper Power Systems or its affiliates.Envirotemp is a registered trademark of Cooper Power Systems or its affiliates.FM Global is a registered trademark of Factory Mutual Insurance Company.

1045 Hickory Street Pewaukee, WI 53072 USAwww.cooperpower.com