Eaton B20B-VR 15 500 Manuals

Manuals and User Guides for Eaton B20B-VR 15 500. We have 1 Eaton B20B-VR 15 500 manual available for free PDF download: Instructions Manual

Eaton B20B-VR 15 500 Instructions Manual (42 pages)

Replacement Breakers for Westinghouse

Brand: Eaton | Category: Circuit breakers | Size: 1.2 MB

Table of Contents
4
Table 1.1 - B20B / B22B-VR Vacuum Circuit Breaker Availability and Interchangeability
7
Section 1: Introduction
7
Available B20B / B22B-Vr Breakers
7
Figure 1-1 Outline and Dimensions in Inches of Type B20B / B22B-VR Breakers (B22B-VR Shown)
8
Table 1.2 - B20B / B22B-VR Dimensions in Inches
8
Section 2: Safe Practices
9
Figure 3-1 B20B / B22B-VR Tools and Accessories
10
Figure 3-2 Overhead Lifting of B22B-VR
10
Section 3: Receiving, Handling and Storage
10
Receiving
10
Handling
10
Table 3.1 - Weight by Breaker Type
11
Storage
11
B20B / B22B-Vr Approximate Weights
11
Figure 3-3 Front External View of Breaker (B22B-VR Shown)
12
Figure 3-4 Back External View of Breaker (B22B-VR Shown)
13
Section 4: Installation and Inspection
14
Examination for Damage
14
Nameplate Verification
14
Operational Positions
14
Manual Operational Checks
14
Figure 4-1 Alignment of B20B/B22B-VR (B22B-VR Shown)
15
Figure 4-2 Insertion of B20B/B22B-VR (B22B-VR Shown)
15
Vacuum Integrity Checks
15
Applied Potential Test (Insulation Check)
15
Contact Erosion and Stroke, Contact Wipe
15
Primary Circuit Breaker Resistance Tests
15
Cell Preparation & Electrical Operational Checks
15
Figure 4-3 B20B/B22B-VR Test / Disconnect Position (B22B-VR Shown)
16
Insertion Procedure
16
Figure 4-4 Rack-In Position of Handle
17
Figure 4-5 B20B/B22B-VR Connected Position (B22B-VR Shown)
17
Removal Procedure
17
Figure 5-1 B20B/B22B-VR Interrupter
18
Figure 5-2 B20B/B22B-VR Interrupter Assembly
18
Section 5: Description and Operation
18
Vacuum Interrupter
18
The Interrupter Assembly
18
Contact Erosion Indicator
18
Figure 5-3 Ground Plate Alignment Check
19
Contact Wipe and Stroke
19
Phase Barriers
19
Bushings and Disconnecting Contact Assemblies
19
Stored Energy Mechanism
19
Closing Spring Charging
20
Closing Operation
20
Tripping Operation
20
Trip-Free Operation
20
Control Schemes
20
Table 5.1 - Time Per Event
21
Secondary Connection Block
21
Interlocks
21
Anti-Close Interlock
21
Shutter Interlock
21
Racking System Cam Interlock
21
MOC (Mechanically Operated Contacts) OPERATOR
21
Figure 5-4 B22B-VR Vacuum Element - Front Faceplate Removed
22
Figure 5-5 Closing Cam and Trip Linkage
23
Figure 5-6 Charging Schematic
24
Figure 5-7 Typical AC/DC Schematic
25
Figure 5-8 TOC Operator
26
Figure 5-9 Static Grounding Contact
26
TOC (Truck Operated Contacts) OPERATOR
26
Static Grounding Contact
26
Figure 6-1 Lubrication Areas
27
Section 6: Inspection and Maintenance
27
Introduction
27
Frequency of Inspection
27
Inspection and Maintenance Procedures
28
Table 6.1 - Voltages
29
Vacuum Interrupter Integrity Test
29
Contact Erosion and Wipe
29
Figure 6-2 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Open
30
Figure 6-3 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Closed
30
Insulation
30
Insulation Integrity Check
30
Figure 6-4 the Arrow Shows the "T" Contact Wipe Indicator - Example with Blue Spring
31
Figure 6-5 Wipe Indication Procedure
31
Primary Circuit Resistance Check
31
Mechanism Check
31
Closure Tm Test
31
Figure 6-6 Status Indicators
32
Figure 6-7 Wrapping Tape Around Cam
32
Figure 6-11 with Marker in Hole "C", While Closing Breaker
33
Figure 6-8 Attaching Closure
33
Figure 6-9 Manually Charging Closing Springs
33
Figure 6-10 Make a Clear and Heavy Mark
33
Figure 6-12 Move the Sharpie Left and Right
33
Figure 6-13 Top View of Cam and Marker Interface
34
Figure 6-14 Evaluate the Closure
34
Figure 6-15 Determining the Distance Traveled
34
Figure 6-16 Illustrative Testing Tape Sample
34
Figure 6-17 Front View of Closure
34
TM Performance
34
Table 6.2 - Closure
35
Figure 6-18 Typical Circuit Breaker Front View with Closure
35
Table 6.3 - Proper Lubrication Times Per Rating
36
Table 6.4 - Troubleshooting Chart
36
Lubrication
36
Section 7: Replacement Parts
39
General
39
Ordering Instructions
39

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