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CUTLER-HAMMER 24kV Type W-VAC Circuit Breaker

FIGURE:

TITLE

1-1

Type W-VAC 24kV Circuit Breaker Outlines and Dimensions

3-1

Typical W-VAC Tools and Accessories

3-2

Front View W-VAC 24kV Vacuum Circuit Breaker

3-3

W-VAC 24kV Vacuum Circuit Breaker with Front Cover Removed

3-4

Rear View W-VAC 24kV Vacuum Circuit Breaker

3-7

Typical W-VAC 24kV Escutcheon

4-1

Type W-VAC Circuit Breaker Manual Charging Handle in Use

4-2

Typical W-VAC Circuit Breaker Compartment

4-3

Engaging Extension Rail in a W-VAC Circuit Breaker Compartment

4-4

Typical W-VAC 24kV Circuit Breaker Bottom View

4-5

Pulling Secondary Disconnect Cage to Engage Secondaries in TEST Position

4-6

Engaging Levering-In Crank

5-1

Rear View Showing Pole Unit Enclosure

5-2

Graphic Representation of Arc Interruption

5-3

Closing CAM and Trip Linkage

5-4

Charging Schematic

5-5

Typical 24kV W-VAC "DC" and "AC" Control Schematics

5-6

Secondary Circuit Breaker Plug Shown Mounted Lower Left

5-7

Undervoltage Trip Device Configuration

6-1

Lubrication Points

6-2

Contact Erosion Check Being Made (Circuit Breaker Closed)

6-3

Graphical Representation for Contact Erosion Check (Circuit Breaker Closed)

6-4

Side View of Loading Spring Indicator (Circuit Breaker Closed)

6-5

Graphical Representation of Contact Wipe Measurement of Loading Spring

Indicator (Circuit Breaker Closed)

TABLE:

TITLE

1.1

Type W-VAC Vacuum Circuit Breaker Ratings

3.1

W-VAC Circuit Breaker Weights

5.1

Circuit Breaker Timing

6.1

Torque Guidelines

6.2

Test Voltage

6.3

Typical Resistance Measurements

7.1

Recommended Renewal Parts for ANSI Rated Breakers

Effective 12/98

FIGURE

TABLES

I.B. 8801C71H01

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