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Eaton Manuals
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50VCPW-ND250
Installation, operation and maintenance manual
Eaton 50VCPW-ND250 Installation, Operation And Maintenance Manual
Vacuum circuit breake vcp-w series; vcpw-se series; vcpw-nd series
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Also See for 50VCPW-ND250
:
Instructions for installation/operation/maintenance/servicing
(72 pages)
,
Instructions for installation, operation and maintenance
(81 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Section 1 Introduction
Preliminary Comments and Safety Precautions
1-1.1 Warranty and Liability Information
1-1.2 Safety Precautions
General Information
Type VCP-W Vacuum Circuit Breaker through 15 Kv Rated Symmetrical Current Basis
Table Title
Type VCP-W Vacuum Circuit Breaker Element Ratings (Tables 1.1, 1.2, 1.3 and 1.4)
Type VCP-W Vacuum Circuit Breaker 27 Kv Rated Symmetrical Current Basis
Figure Title
Outlines and Dimensions
Type VCP-W and Type VCPW-SE Circuit Breaker Outlines and Dimensions in Inches
Type VCPW-ND Circuit Breaker Outlines and Dimensions in Inches
Safe Practices
Recommendations
Section 3 Receiving, Handling and Storage
General
Receiving
Handling
Tools and Accessories
Type VCP-W Vacuum Circuit Breaker Element Weights (Tables 3.1 and 3.2)
VCP-W IEC Rated Breaker Weights
Typical VCP-W Tools and Accessories
Typical Front View VCP-W Vacuum Circuit Breaker Element
Typical VCP-W Vacuum Circuit Breaker Element with Front Cover Removed
Typical Rear View VCP-W Vacuum Circuit Breaker Element
Typical VCP-W Vacuum Circuit Breaker Element Escutcheon
Initial Inspection and Installation
Introduction
Manual Operation Check
Vacuum Interrupter Integrity
Insulation
Contact Erosion and Wipe
Primary Circuit Resistance
Nameplate
Type VCP-W Circuit Breaker Manual Charging Handle in Use
Electrical Operation Check
4-8.1 Circuit Breaker Insertion and Removal
Typical VCP-W Circuit Breaker Compartment
4-8.2 Operation Check Performance
Engaging Extension Rails in a Lower Circuit Breaker Compartment
Typical VCP-W Circuit Breaker Bottom View
Circuit Breaker/Structure Interfacing
4-9.1 Interface Interlocks/Interfacing Check
Pulling Secondary Disconnect Cage to Engage Secondaries in TEST Position
Engaging Levering-In Crank
Description and Operation
Introduction
Interrupter Assembly
5-2.1 Vacuum Interrupter
Typical VCP-W Rear View Showing Vacuum Interrupters and Current Carrying System
5-2.2 Contact Erosion Indication
5-2.3 "T" Cutout Loading Spring Indicator
5-2.4 Contact Wipe and Stroke
5-2.5 Phase Barriers
Graphic Representation of Arc Interruption
Stored Energy Mechanism
5-3.1 Operation of Stored Energy Mechanism
Closing Cam and Trip Linkage
Charging Schematic
5-3.2 Charging
5-3.3 Closing Operation
5-3.4 Tripping Operation
5-3.5 Trip Free Operation
Control Schemes
Typical VCP-W DC and AC Control Schemes
5-4.1 Timing
5-4.2 Secondary Disconnects
5-4.3 Undervoltage Trip Device
Undervoltage Trip Device Configuration
Interlocks and Interfacing
Levering Mechanism
Operations Counter
Ground Contact
MOC and TOC Switch Operations
Section 6 Inspection, Maintenance and Troubleshooting
Introduction
Frequency of Inspection and Maintenance
6-2.1 Qualified Personnel
6-2.2 General Torque Guidelines
Lubrication Points
6-1B 150 VCP-W 63 63Ka Pole Unit
Inspection and Maintenance Procedures
Vacuum Interrupter Integrity Test
Contact Erosion and Wipe
Insulation
Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Open
Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Closed
Insulation Integrity Check
Wipe Indication Procedure
Primary Circuit Resistance Check
Mechanism Check
6-9.1 Closure TM Test
Status Indicators
Starting Tape at Bottom of Cam
Wrapping Tape up Aroung Cam
Attaching Tape Around to Back of Cam
TM Test Tool at Hole "A
TM Test Tool at HP
Manually Charging Closing Strips
Manually Closing Circuit Breaker with Marker in Hole "C
Top View of CAM and Marker Interface
O to Right
Move Marker 15 6-16 Remove Marker Masking Tape from Cam
O to Left
Place Tape on Right Side Panel of Breaker
Illustrative Testing Tape Sample
TM Tool Showing Mounting/Testing Hole Locations
Lubrication
TM Tool Attached
Troubleshooting Chart
Section 7 Renewal Parts
General
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Type Vcp-W Vacuum Circuit Breaker through 15 Kv Rated Symmetrical Current Basis
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Cutler-Hammer
I.B. 32-255-1G
Instructions for Installation, Operation and Maintenance
of Type VCP-W Vacuum Circuit Breakers
Effective 12/02 Supersedes I.B. 32-255-1F dated January 2000
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Table of Contents
Troubleshooting
SECTION 6 INSPECTION, MAINTENANCE AND TROUBLESHOOTING
40
Troubleshooting Chart
51
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This manual is also suitable for:
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150 vcp-w 25c
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50vcp-wg50
50vcp-wg63
150vcp-wg50
150vcp-wg63
36vcpw-nd25
36vcpw-nd32
72vcpw-nd25
72vcpw-nd32
36vcp-w25
36vcp-w32
36vcp-w40
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120vcp-w25
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120vcp-w40
175vcp-w25
175vcp-w32
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240vcp-w16
240vcp-w20
240vcp-w25
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