I.B. 3A74792H04
Page vi
Effective 7/97
FIGURES
Figure
Title
Page
1-1
Type VCP-W 38kV Circuit Breaker Outlines and Dimensions ......................................................................3
3-1
Circuit Breaker Shown Mounted with Ramp Still in Shipping Position..........................................................5
3-2
Circuit Breaker Shown Being Moved Carefully Down Attached Ramp .........................................................6
3-3
Optional Fifth Wheel Shown in Use ..............................................................................................................6
3-4
Front View VCP-W 38kV Vacuum Circuit Breaker........................................................................................8
3-5
VCP-W 38kV Vacuum Circuit Breaker with Front Cover Removed ..............................................................9
3-6
Rear View VCP-W 38kV Vacuum Circuit Breaker ......................................................................................10
3-7
Typical VCP-W 38kV Escutcheon...............................................................................................................11
4-1
Type VCP-W Circuit Breaker Manual Charging Handle in Use ..................................................................12
4-2
Type VCP-W Circuit Breaker (Bottom View)...............................................................................................15
5-1
Rear View Showing Pole Unit Enclosure ....................................................................................................16
5-2
Plate Over Rear Truck Opening 2000A Breakers and Above.....................................................................16
5-3
Graphic Representation of Arc Interruption ................................................................................................17
5-4
Closing Cam and Trip Linkage....................................................................................................................19
5-5
Charging Schematic....................................................................................................................................21
5-6
Typical 38kV VCP-W “DC” and “AC” Control Schematics ..........................................................................22
5-7
Secondary Circuit Breaker Plug Shown Mounted Lower Left .....................................................................23
5-8
Undervoltage Trip Device Configuration .....................................................................................................25
6-1
Lubrication Points .......................................................................................................................................28
6-2
Rear Measurement for Contact Erosion Being Made (Circuit Breaker Closed)..........................................31
6-3
Graphical Representation of Contact Erosion Measurement (Circuit Breaker Closed) ..............................31
6-4
Side View of Loading Spring Indicator (Circuit Breaker Closed).................................................................32
6-5
Graphical Representation of Contact Wipe Measurement
of Loading Spring Indicator (Circuit Breaker Closed)..................................................................................32
TABLES
Figure
Title
Page
1.1
Type VCP-W Vacuum Circuit Breaker on Symmetrical Current Rating Basis ..............................................2
3.1
VCP-W Circuit Breaker Weights ...................................................................................................................7
5.1
Circuit Breaker Timing ................................................................................................................................23
6.1
Torque Guidelines.......................................................................................................................................27
6.2
Test Voltage................................................................................................................................................30
6.3
Typical Resistance Measurements .............................................................................................................33
7.1
Recommended Renewal Parts for ANSI Rated Breakers...........................................................................36
Summary of Contents for Cutler-Hammer VCP-W
Page 2: ......
