Eaton B20B-VR Series Instructions Manual page 6

Replacement breakers for westinghouse

Table of Contents

I.B. 94A1994R01

Page 4

Effective: April 2005

Figure 1-1 Outline and Dimensions in inches of Type B20B / B22B-VR Breakers (B22B-VR Shown) ............................................. 6

Figure 3-1 B20B / B22B-VR Tools and Accessories .............................................................................................................................. 8

Figure 3-2 Overhead Lifting of B22B-VR ................................................................................................................................................ 8

Figure 3-3 Front External View of Breaker (B22B-VR Shown) .......................................................................................................... 10

Figure 3-4 Back External View of Breaker (B22B-VR Shown) ........................................................................................................... 11

Figure 4-1 Alignment of B20B/B22B-VR (B22B-VR Shown) ................................................................................................................. 13

Figure 4-2 Insertion of B20B/B22B-VR (B22B-VR Shown) ................................................................................................................... 13

Figure 4-3 B20B/B22B-VR Test / Disconnect Position (B22B-VR Shown) .......................................................................................... 14

Figure 4-4 Rack-In Position of Handle .................................................................................................................................................. 15

Figure 4-5 B20B/B22B-VR Connected Position (B22B-VR Shown) ..................................................................................................... 15

Figure 5-1 B20B/B22B-VR Interrupter ................................................................................................................................................... 16

Figure 5-2 B20B/B22B-VR Interrupter Assembly ................................................................................................................................ 16

Figure 5-3 Ground Plate Alignment Check ......................................................................................................................................... 17

Figure 5-4 B22B-VR Vacuum Element - Front Faceplate Removed ................................................................................................... 20

Figure 5-5 Closing Cam and Trip Linkage ........................................................................................................................................... 21

Figure 5-6 Charging Schematic ............................................................................................................................................................ 22

Figure 5-7 Typical AC/DC Schematic .................................................................................................................................................... 23

Figure 5-8 TOC Operator ....................................................................................................................................................................... 24

Figure 5-9 Static Grounding Contact .................................................................................................................................................... 24

Figure 6-1 Lubrication Areas ................................................................................................................................................................ 25

Figure 6-2 Vacuum Interrupter Showing Contact Erosion Indicator With Breaker Open ............................................................. 28

Figure 6-3 Vacuum Interrupter Showing Contact Erosion Indicator With Breaker Closed .......................................................... 28

Figure 6-4 The Arrow Shows The "T" Contact Wipe Indicator - Example with Blue Spring ......................................................... 29

Figure 6-5 Wipe Indication Procedure ................................................................................................................................................. 29

Figure 6-6 Status Indicators ................................................................................................................................................................. 30

Figure 6-7 Wrapping Tape Around Cam .............................................................................................................................................. 30

Figure 6-8 Attaching CloSure

Figure 6-9 Manually Charging Closing Springs .................................................................................................................................. 31

Figure 6-10 Make a Clear and Heavy Mark .......................................................................................................................................... 31

Figure 6-11 With Marker in Hole "C", While Closing Breaker ........................................................................................................... 31

Figure 6-12 Move the Sharpie

Figure 6-13 Top view of Cam and Marker Interface .......................................................................................................................... 32

Figure 6-14 Evaluate the CloSure

Figure 6-15 Determining the Distance Traveled ................................................................................................................................. 32

Figure 6-16 Illustrative Testing Tape Sample ..................................................................................................................................... 32

Figure 6-17 Front View of CloSure

Figure 6-18 Typical Circuit Breaker Front View with CloSure

Instructions for VR-Series

Replacement Breakers for

Westinghouse Type B20B/B22B

Figures

Test Tool at Hole "A" & "B" ............................................................................................................ 31

Left and Right ............................................................................................................................. 31

Performance ............................................................................................................................. 32

Tool Showing Mounting / Testing Hole Locations .............................................................. 32

For more information visit: www.EatonElectrical.com

Tool Attached ............................................................................... 33