Eaton W-VAC Series Instructions For Installation, Operation And Maintenance

Also see for 120W-VAC16: Instructions for installation, operation and maintenance

Contents

Instruction BookPage 4IB131009ENTABLE OF CONTENTSSECTION 1 INTRODUCTIONPAGE1-1 Type W-VAC, W-VACR and W-VACW Breaker Ratings ....................................................................................... 1SECTION 2 SAFE PRACTICESSECTION 3 RECEIVING, HANDLING AND STORAGE3-1 Receiving ............................................................................................................................................................... 143-2 Handling ................................................................................................................................................................ 153-3 Storage .................................................................................................................................................................. 15SECTION 4 INSTALLATION4-1 Initial Inspection and Operation ............................................................................................................................ 224-2 Manual Operation Check ...................................................................................................................................... 224-3 Vacuum Interrupter Integrity ................................................................................................................................. 224-4 Insulation ............................................................................................................................................................... 224-5 Contact Erosion and Wipe .................................................................................................................................... 224-6 Primary Circuit Resistance.................................................................................................................................... 224-7 Nameplate ............................................................................................................................................................. 224-8 Electrical Operations Check.................................................................................................................................. 224-9 Breaker/Compartment Interface Check ................................................................................................................ 24SECTION 5 DESCRIPTION AND OPERATION5-1 Interrupter Assembly ............................................................................................................................................. 265-1.1 Vacuum Interrupter ............................................................................................................................................... 265-1.2 Contact Erosion Indicator (Except 3150A) ........................................................................................................... 275-1.3 Contact Erosion Indicator (3150A Only)............................................................................................................... 275-1.4 “T” Cutout Loading Spring Indicator...................................................................................................................... 285-1.5 Contact Wipe and Stroke ...................................................................................................................................... 285-1.6 Pole Unit Support Molding .................................................................................................................................... 285-2 Stored Energy Mechanism.................................................................................................................................... 295-2.1 Operation of Stored Energy Mechanism .............................................................................................................. 295-2.2 Charging ................................................................................................................................................................ 295-2.3 Closing Operation.................................................................................................................................................. 295-2.4 Tripping Operation................................................................................................................................................. 325-2.5 Trip Free Operation ............................................................................................................................................... 325-3 Control Scheme .................................................................................................................................................... 325-3.1 Timing .................................................................................................................................................................... 325-3.2 Secondary Disconnects ........................................................................................................................................ 325-3.3 Undervoltage Trip Device...................................................................................................................................... 335-4 Interlocks ............................................................................................................................................................... 335-4.1 Floor Tripping, Spring Release and Anti-Latch Interlocks .................................................................................... 335-4.2 Levering Interlock .................................................................................................................................................. 335-4.3 Anti-Close Interlock ............................................................................................................................................... 335-4.4 Earthing Drive Interlock ......................................................................................................................................... 33