Eaton 380 VCP-Wind Instructions For The Use, Operation And Maintenance page 5

Vacuum circuit breakers

Table of Contents

I.B. 70A2580H02

5-3.1

Operation of Stored Energy Mechanism ..................................................................................... 16

5-3.2

Charging ....................................................................................................................................... 16

5-3.3

Closing Operation ................................................................................................................... 18

5-3.4

Tripping Operation .................................................................................................................. 18

5-4

Control Schemes ................................................................................................................................. 18

5-4.1

Timing ..................................................................................................................................... 18

5-4.2

Secondary Disconnects .......................................................................................................... 18

5-4.3

Secondary Terminal Connections ........................................................................................... 22

5-4.4

Under voltage Trip Device....................................................................................................... 22

5-5

Interlocks and Interfacing .................................................................................................................... 23

5-6

Levering Mechanism (VCP-Wind Only) ............................................................................................... 23

5-7

Operations Counter ............................................................................................................................. 23

5-8

Ground Contact ................................................................................................................................... 23

5-9

MOC and TOC Switch Operations....................................................................................................... 23

SECTION 6: INSPECTION, MAINTENANCE AND TROUBLESHOOTING

6-1

Introduction ......................................................................................................................................... 25

6-2

Frequency of Inspection and Maintenance .......................................................................................... 25

6-2.1

Qualified Personnel ............................................................................................................... 25

6-2.2

Helpful Tools and Accessory Items ....................................................................................... 25

6-2.3

General Torque Guidelines ................................................................................................... 25

6-3

Inspection and Maintenance Procedures............................................................................................. 27

6-4

Vacuum Interrupter Integrity Test ........................................................................................................ 28

6-5

Insulation............................................................................................................................................. 28

6-6

Insulation Integrity Check .................................................................................................................... 29

6-7

Primary Circuit Resistance Check ....................................................................................................... 29

6-8

Mechanism Check ............................................................................................................................... 30

6-10.1

CloSure

6-9

Lubrication........................................................................................................................................... 34

6-10

Troubleshooting Chart ......................................................................................................................... 34

SECTION 7: RENEWAL PARTS

7-1

General .............................................................................................................................................. 38

7-1.1 Ordering Instructions ................................................................................................................. 38

Figure

Title

1-2

Type VCP-Wind 38kV Drawout Circuit Breaker Outline and Dimensions............................................... 3

3-1

VCP-Wind 38kV Drawout Vacuum Circuit Breaker ................................................................................. 7

3-2

VCP-Wind 38kV Vacuum Circuit Breaker with Front Cover Removed....................................................8

3-3

Rear View VCP-WIND 38kV Drawout Circuit Breaker ........................................................................... 9

3-4