BR01306001E Vacuum Bottle

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Eaton Vacuum Interruption

Technology (EVI)

Product Focus



Eaton VacuumInterruptionTechnology

Eaton Vacuum Interrupters(EVIs) Are at the Heartof the Escalating Growthin Worldwide Demandfor Electricity

World demand for electricity isescalating with the use of moreefficient medium voltage powerdistribution systems. Utilitiesare pursuing higher powergeneration systems usingfossil, nuclear, hydro and windpower to supply an increasingnumber of transmission net-works internationally. Networksubstations are distributingpower to a greater number ofconsumers regionally. Powerconsumers are insisting onenvironmentally friendlyprotection equipment andswitchgear compact enoughto fit within their site spaceconstraints. Improving powerreliability is a growing require-ment for medium voltageprotection and switching

equipment manufacturers ascritical power consumptioncontinues to grow.

At the Core of theConundrum, an IdealProtection andSwitching Solution

Medium voltage powerswitching is one demandingapplication in today’s greenworld. Continuous currentand interruption requirementscontinue to increase as lowerimpedance systems are

deployed. Packaging volumesand cooling capabilitiescontinue to decrease dueto site space constraints.The challenge is at the coreof every switchgear, ring mainunit, pad mount unit, circuitbreaker, recloser, tap changer,contactor and switch. The idealsolution is an environmentallyfriendly medium voltageinterrupter, capable of reliablyswitching high stress currentsrobustly, without the needfor unreliable cooling orventilation systems.

2 EATON CORPORATION Eaton Vacuum Interruption Technology

1. EVIs Protect Generators Such as Those

Depicted for Short Circuit Current

Interruptions Up to 75 kA

1

An Ideal Solution, DevelopedThrough Years of Innovation

The solution starts with thecustomer’s needs at the center,driven by decades of Americaningenuity in vacuum interruptioninvention, expanded by years ofEuropean attention to detail indesign for today’s green envi-ronment. These facets coupledwith quality improvementsmade by U.S. and Chinesemanufacturing operations, theideal solution custom-fits thecustomer’s application andcompetitively interrupts greaterpower with less wear and main-tenance over its life-cycle. Thissolution requires innovation thatleverages expertise in IEEE,IEE/EN, UL /CSA, IEC andGB/JB/DL vacuum interruptionrequirements and applications.

Years of Innovationand Experience

Global innovation can only beachieved through long-termcommitment to the customer’stotal product life cycle. Eatonpromotes application orientedsales relationships, confidentialR&D partnerships, responsivetesting and certification supportof customer’s products. In addi-tion to aftermarket technical andcost-out consulting services,Eaton pays attention to thedetails that deliver the idealproduct solution for a problemapplication, ultimately resultingin the optimization of the

customer’s product designinvestments.

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1967 1972 1982 1987 1992 2006

D i a m e

t e r ( I n c h )

Continued Investment in Research andDevelopment Contributes to Eaton’s Small

Interruption to Envelope Ratio

Size Reduction of 15 kV, 12 kA Function

2. Partner with the Inventor and

Innovation Leader in VI Technology

While growing as the world leader of Vacuum

Interrupter Technology, Eaton has taken the

values and technology from acquisitions and

combined those with organic development to

create one vertically integrated business,

establishing itself at the forefront of Vacuum

Technology. Utilizing 3-D solid modeling, FEA

analysis and our two-high power test labs,

Eaton is able to create many of the highest

interrupting applications with the smallest

envelopes in the industry.

E = Eaton

W = Westinghouse

H = Holec

EVI Evolution

2005 (E) Created an 80 kA VI

2004 (E) VIs in service for auxiliary breakersat KEMA Powertest lab in Chalfont, PA

2003 (E) Designed a 63 kA VI successfully

tested at 5000 A VI

2003 (E) Acquired Holec brand technology

2002 (E) Built VI manufacturing plant

in Suzhou China

2002 (E) VIs used for 15 and 38 kV auxiliary circuit

breakers at CESI test lab in Milano, Italy

2001 (E) Developed generator breaker VI

1999 (E) Introduced Wave ceramic

VIs for China market

1995 (E) Implemented a dedicated VI contactor line

1992 (E) Acquired Westinghouse DCBU* Technology

*(Distribution Controls Business Unit)

1988 (W) Pioneered 40 kA AMF VI

1986 (W) Launched 38 kV AMF VI

1985 (W) Started producing contactors 1.5 kV 320 A

1982 (H) First encapsulated VI assembly certified

1977 (W) Developed 72 kV VI

1975 (H) Holec started selling VIs commercially

1970 (W) Engineered a LBS for 15 kV

1970 (W) Designed Initial AMF contact structure

1968 (W) Pioneered Cu-Cr contact material

1968 (W) Created a VI for recloser applications

1967 (W) Shipped 1st commercially

produced VIs for medium voltage

1965 (W) Originated batch manufacturing process

process for VIs

1960 (H) Holec started vacuum research

1940 (W) Developed long life vacuum technology

1930 (W) Initiated the first research on vacuum arc

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1970

1960

1940

1930

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For Your VI Investment, Eatonhas the Answer

Eaton has combined more than100 years of global innovationand design investments madeby Westinghouse, Cutler-Hammer and Holec to deliveran environmentally ideal VacuumInterrupter Solution for yourtargeted applications. EVIs areavailable in a wide range ofratings backed by a broad listof capabilities:

• High ac currents and voltages

• Rapid prototyping

• Compact bottle volumes

• Negligible erosion and wear

• Dielectric encapsulation

• Mechanism assistance

• Custom-specific designs

• Personal sales andsupport services

• Close and confidential

R&D services

• Manufacturing economiesof scale

• Product test labs andsupport services

• Global, regional andlocal availability

• Application consultation

With EVIs, the Answer is“Always Yes”

Eaton has what you need froman investment partner: custom-designed leading technology,product innovation partnership,product pre-qualificationcertification, responsivejust-in-time manufacturingand shipping, and aftermarketemergency and life-cyclesupport. With EVIs, you arenot just buying a VI — you areteaming with a global partnerto help optimize returns on yourinvestment, from the time youbegin your product design toaftermarket support followingthe commissioning of yourcustomer’s end application.

With EVIs, Say Goodbye to VISupplier Problems

You will never know if you areworking with the right partneruntil something goes wrong —

your customers pull-in theirorders, you need to expeditepartial shipments to a critical job,your customers forgot to entertheir orders to you, your cus-tomers demand additional testsat the last minute. That is whenyou can count on the globalpresence of Eaton to go togreat lengths and protect your

EATON CORPORATION Eaton Vacuum Interruption Technology

3. EVIs are Available for Rail Applicatio

Requiring a 250 kV Lightning Impulse

Withstand Rating

4. The Eaton Vacuum Interrupter —

the Solution for Your Targeted

Application Needs

5. Available Contact Geometries

3 4

5

Solid ButtDesign

Spiral(TMF)Design

AxialMagnetic

(AMF)

Design

HorseshoeDesign

investment. We have keptcustomers coming back acrossthe life-cycle of their productsfor over 40 years.

A Perfect Fit forMany Applications

Eaton has the broadest productoffering in the industry withvacuum interrupters for

application in:• Load break switches

• Motor contactors

• Circuit breakers

• Reclosers

• Transportation breakers

• Ring main / pad mount units

• Specialized dc applications

• Generator breakers

• Distribution circuit breakers

• Medium voltage switchgear



EVI SIZES AVAILABLE FROM 25 MM TO 182 MM IN DIAMETER

Description Units Contactor Load Break Circuit Recloser Generator

Switch Breaker BreakerVoltage Ratings at Rated Contact StrokeRated Maximum Line to Line ac Voltage (50/60 Hz) kilovolts 1.5 – 15 4.76 – 38 4.76 – 72 12 – 40.5 12 – 15Rated Continuous Current amperes 150 – 1400 200 – 1250 630 – 4000 200 – 1250 2000 – 400Rated Short Circuit Current (Symmetrical) kA 1.5 – 12 4.4 – 2 12.5 – 80 6 – 20 50 – 75

Mechanical Requirements / DataContact Stroke mm 2 – 6 4.75 – 9.5 8 – 30 9 – 12 8 – 10Opening Speed, Average to 75% of Rated Stroke m/second 0.25 – 0.61 0.46 – 1.1 1 – 2.3 1 – 1.5 1 – 1.5Closing Speed, Average of Last 33% of Rated Stroke m/second 0.2 – 0.3 0.27 – 0.91 0.75 – 1.5 0.75 – 1 0.75 – 1

LifeMechanical Life at Required Contact Stroke and Operating Speeds operations 500,000 – 2,500,000 10,000 – 50,000 5,000 – 30,000 10,000 10,000Electrical Life at Rated Current operations 600,000 – 1,000,000 10.000 – 50,000 5,000 – 30,000 10,000 10,000Contact Erosion Limit mm 2 3 3 3 3

State-of-the-Art TestingFacilities to Protect YourDesign Investment

Through the use of Eaton’stwo-high power test labs,a single-phase developmentlab in the U.S. and a three-phase, KEMA certified labin Europe, Eaton is able tosystematically test newdesigns prior to certificationby the end user. Every newdesign is stringently lifetested to ensure switchinglife, as well as interruptionability. Our production unitsundergo quality assurance

inspections throughout everycritical aspect of the manufac-turing process. Our teamof scientists and designengineers create VIs to meetour customer’s specifications,many of which push the limitsof industry standards. Some

of the distinguishing designfeatures include:

• Solid dielectricencapsulation

• Customer-specificterminal designs

• Features for easeof assembly

• Custom internal andexternal threads

• Anti-twist bushings

• Custom contact design(AMF, TMF, horseshoe andbutt styles)

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

Vacuum

SF6

Oil

Air

World Wide Circuit Interruption TrendsFor 3 – 38 kV Applications

7

7. Vacuum Interruption — A Definitive

Worldwide Trend

When buying EVI technology, you are

receiving proven reliability, pre-tested

interruption ratings, and knowledgeable

customer support throughout the world,

for a technology that is clearly the futur

for medium voltage circuit interruption.

6 6. Arc Research Using High-Speed

Digital Photography



EVIs: Commitment toQuality, Performance Testedto the World’s Standards

The greatest advantage to theutilization of an EVI in mediumvoltage distribution switchgearis its compact size. A vacuumdielectric allows contacts to bearranged closer together socircuit interruptions can be

designed in a smaller enve-lope. To meet IEC, ANSI andGB/JB/DL standards, EVIs aremanufactured in ISO-9001certified and ISO-14001certified facilities under strictquality procedures. Each EVIis tested throughout the

manufacturing process andonce again before packaging.

A dielectric withstand, as wellas a vacuum assurance test, isperformed on every interruptercreated. In addition to the test-ing process, Eaton also incor-porates a sequential bar codethat allows us to track materiallots, as well as the operators

involved with building eachinterrupter in an electronic

database. The true test of ourproduct range is conducted dafter day, year after year in thfield. With well over 3 millionEVIs in service around theworld, our customers testifythat the EVI is one of the moscritical and reliable componen

in their end product.

x Manufacturing & R&D Location

5 Customer Support Center

s Eaton Sales Office

8 9 8. VIs Used for Wind Power Generation

9. Medium Voltage Breaker Showing VI



© 2006 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. BR01306001E / Z4650October 2006

Eaton Electrical Inc.1000 Cherrington Parkway

Moon Township, PA 15108

United States

tel: 1-800-525-2000

www.EatonElectrical.com

Cutler-Hammer and Holec are federallyregistered trademarks of Eaton CorporatiCSA is a registered trademark of theCanadian Standards Association. UL is aregistered trademark of UnderwritersLaboratories Inc. Westinghouse is aregistered trademark of WestinghouseElectric Company LLC. ISO is the register

trademark and sole property of theInternational Organization for Standardiz

Eaton’s electrical business is a global leader in electricalcontrol, power distribution, and industrial automation productsand services. Through advanced product development, world-class manufacturing methods, and global engineering servicesand support, Eaton’s electrical business provides customer-driven solutions under brand names such as Cutler-Hammer,Powerware, Durant, Heinemann, Holec and MEM, whichglobally serve the changing needs of the industrial, utility,light commercial, residential, and OEM markets. For moreinformation, visit www.EatonElectrical.com.

Eaton Corporation is a diversified industrial manufacturer with2005 sales of $11.1 billion. Eaton is a global leader in electrical systemsand components for power quality, distribution and control; fluidpower systems and services for industrial, mobile and aircraft equipment;intelligent truck drivetrain systems for safety and fuel economy; andautomotive engine air management systems, powertrain solutions andspecialty controls for performance, fuel economy and safety. Eaton has

60,000 employees and sells products to customers in more than 125 countries.For more information, visit www.eaton.com

Eaton Electrical Inc.

200 Westinghouse Circle

Horseheads, NY 14845

United States

tel: 1 607 796 3211


Eaton Electric B.V.

Europalaan 202

7559 SC, Hengelo (O)

The Netherlands

tel: 31 74 246 7066


Eaton Electrical (Suzhou) Ltd.

193 Su Hong Xi Road

Suzhou Industrial Park

Suzhou, PRC 215021

tel: 86 512 67163728

www.EatonElectrical.com.cn

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BR01306001E Vacuum Bottle