Eaton 150VCP-W 40 User Manual

Effective 07/2017
IB131006EN
Instructions for Installation, Operation and Maintenance
of Type VCP-W Vacuum Circuit Breakers
Courtesy of NationalSwitchgear.com

Eaton 150VCP-W 40 Specifications

General

Brand	Eaton
Model	150VCP-W 40
Category	Circuit breakers
Language	English

Summary

SECTION 1: INTRODUCTION

1-1.2 SAFETY PRECAUTIONS

1-3 TYPE VCP-W VACUUM CIRCUIT BREAKER ELEMENT RATINGS

Lists technical ratings and specifications for VCP-W circuit breaker models.

SECTION 2: SAFE PRACTICES

2-1 RECOMMENDATIONS

SECTION 4: INITIAL INSPECTION AND INSTALLATION

4-2 MANUAL OPERATION CHECK

4-3 VACUUM INTERRUPTER INTEGRITY

Guidance on checking the integrity of the vacuum interrupters within the VCP-W circuit breaker.

4-4 INSULATION

4-5 CONTACT EROSION AND WIPE

Steps to check contact erosion and wipe on VCP-W circuit breaker contacts.

4-6 PRIMARY CIRCUIT RESISTANCE

4-8 ELECTRICAL OPERATION CHECK

Steps for performing an electrical operation check on the VCP-W circuit breaker.

4-8.1 CIRCUIT BREAKER INSERTION AND REMOVAL

4-8.2 OPERATION CHECK PERFORMANCE

4-9 CIRCUIT BREAKER/STRUCTURE INTERFACING

Information on ensuring safe and proper interfacing between the breaker and structure.

4-9.1 INTERFACE INTERLOCKS/INTERFACING CHECK

Details on checking interlocks and interfaces for safe operation.

SECTION 5: DESCRIPTION AND OPERATION

5-2 INTERRUPTER ASSEMBLY

5-2.1 VACUUM INTERRUPTER

Explains the function and advantages of vacuum interrupters in VCP-W circuit breakers.

5-2.2 CONTACT EROSION INDICATION

5-2.4 CONTACT WIPE AND STROKE

5-3 STORED ENERGY MECHANISM

Details the stored energy mechanism, its components, and operation.

5-3.1 OPERATION OF STORED ENERGY MECHANISM

5-3.2 CHARGING

5-3.3 CLOSING OPERATION

5-3.4 TRIPPING OPERATION

5-3.5 TRIP FREE OPERATION

5-4 CONTROL SCHEMES

Details the DC and AC control schemes for VCP-W circuit breakers.

5-4.1 TIMING

5-4.2 SECONDARY DISCONNECTS

5-4.3 UNDERVOLTAGE TRIP DEVICE

Describes the operation of the undervoltage trip device in VCP-W circuit breakers.

5-5 INTERLOCKS AND INTERFACING

5-6 LEVERING MECHANISM

5-9 MOC AND TOC SWITCH OPERATIONS

SECTION 6: INSPECTION, MAINTENANCE AND TROUBLESHOOTING

6-2 FREQUENCY OF INSPECTION AND MAINTENANCE

Guidelines for establishing inspection and maintenance schedules for VCP-W circuit breakers.

6-2.1 QUALIFIED PERSONNEL

Defines the qualifications required for personnel performing operations on this equipment.

6-2.2 GENERAL TORQUE GUIDELINES

6-3 INSPECTION AND MAINTENANCE PROCEDURES

Detailed procedures for inspecting and maintaining VCP-W circuit breakers.

6-4 VACUUM INTERRUPTER INTEGRITY TEST

Step-by-step guide for testing the vacuum integrity of VCP-W circuit interrupters.

6-5 CONTACT EROSION AND WIPE

Procedures for checking contact erosion and wipe on VCP-W circuit breaker contacts.

6-6 INSULATION

6-7 INSULATION INTEGRITY

6-8 PRIMARY CIRCUIT RESISTANCE CHECK

Procedure for measuring the DC resistance of the primary circuit.

6-9 MECHANISM CHECK

Visual inspection and manual/electrical operation checks of the circuit breaker mechanism.

6-9.1 CLOSURE™ TEST

Detailed instructions for performing the CloSure™ Test to monitor mechanism performance.

6-10 LUBRICATION

6-11 TROUBLESHOOTING CHART

A chart listing symptoms, inspection areas, and probable defects for troubleshooting.