Eaton 380 VCP-W 21, Instructions For Installation, Operation And Maintenance

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I.B. 3A74792H08
Page v
Effective
09/2014
Page
5-3.1 Operation of Stored Energy Mechanism ..................................................................................... 23
5-3.2 Charging
....................................................................................................................................... 23
5-3.3 Closing Operation ................................................................................................................... 25
5-3.4 Tripping Operation .................................................................................................................. 25
5-4 Control Schemes ................................................................................................................................. 25
5-4.1 Timing ..................................................................................................................................... 25
5-4.2 Secondary Disconnects .......................................................................................................... 25
5-4.3 Secondary
Terminal Blocks .................................................................................................... 29
5-4.4 Undervoltage Trip Device........................................................................................................ 29
5-5 Interlocks and Interfacing .................................................................................................................... 30
5-6 Levering Mechanism (VCP-W Only) .................................................................................................... 30
5-7 Operations Counter ............................................................................................................................. 30
5-8 Ground Contact ................................................................................................................................... 30
5-9 MOC and TOC Switch Operations ....................................................................................................... 30
SECTION 6: INSPECTION, MAINTENANCE AND TROUBLESHOOTING
6-1 Introduction ......................................................................................................................................... 32
6-2 Frequency of Inspection and Maintenance .......................................................................................... 32
6-2.1 Qualified Personnel ............................................................................................................... 32
6-2.2 Helpful Tools and Accessory Items ....................................................................................... 32
6-2.3 General Torque Guidelines ................................................................................................... 32
6-3 Inspection and Maintenance Procedures ............................................................................................. 35
6-4 Vacuum Interrupter Integrity Test ........................................................................................................ 36
6-5 Contact Erosion ................................................................................................................................... 36
6-6 Contact Wipe ....................................................................................................................................... 36
6-7 Insulation ............................................................................................................................................. 37
6-8 Insulation Integrity Check .................................................................................................................... 37
6-9 Primary Circuit Resistance Check ....................................................................................................... 37
6-10 Mechanism Check ............................................................................................................................... 39
6-10.1 CloSure
TM
Test ...................................................................................................................... 39
6-11 Lubrication ........................................................................................................................................... 43
6-12 Troubleshooting Chart ......................................................................................................................... 43
SECTION 7: RENEWAL PARTS
7-1
General .............................................................................................................................................. 46
7-1.1 Ordering
Instructions ............................................................................................................. 46
FIGURES
Figure Title Page
1-1
Type VCP-W 38kV Drawout Circuit Breaker Outlines and Dimensions ................................................. 6
1-2 Type VCP-WR 38kV Fixed Circuit Breaker Outlines and Dimensions ................................................... 7
3-1 Circuit Breaker Shown Mounted with Ramp Still in Shipping Position (VCP-W Only) .......................... 10
3-2 Circuit Breaker Shown Being Moved Carefully Down Attached Ramp (VCP-W Only) ......................... 10
3-3 Optional Fifth Wheel Shown in Use (VCP-W Only) .............................................................................. 10
3-4 Front View VCP-W 38kV Drawout Vacuum Circuit Breaker ................................................................. 12
3-5 VCP-W or VCP-WR 38kV Vacuum Circuit Breaker with Front Cover Removed .................................. 13
3-6 Rear View VCP-W 38kV Drawout Vacuum Circuit Breaker ................................................................. 14
3-7 Rear View VCP-WR Fixed Vacuum Circuit Breaker ............................................................................ 15