Eaton Cutler-Hammer 36W-VAC25 Instructions For Installation, Operation And Maintenance

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

I.B. 3A74499BPage ivEffective 11/97TABLE OF CONTENTSPAGESECTION 1 INTRODUCTION1-1 Type W-VAC Breaker Ratings.............................................................................................................................1SECTION 2 SAFE PRACTICES ................................................................................................................................4SECTION 3 RECEIVING, HANDLING AND STORAGE3-1 Receiving.............................................................................................................................................................53-2 Handling ..............................................................................................................................................................63-3 Storage ...............................................................................................................................................................6SECTION 4 INSTALLATION4-1 Initial Inspection and Operation.........................................................................................................................124-2 Manual Operation Check...................................................................................................................................124-3 Vacuum Interrupter Integrity..............................................................................................................................124-4 Insulation ...........................................................................................................................................................124-5 Contact Erosion and Wipe.................................................................................................................................124-6 Primary Circuit Resistance ................................................................................................................................124-7 Nameplate .........................................................................................................................................................124-8 Electrical Operations Check ..............................................................................................................................124-9 Breaker/Compartment Interface Check.............................................................................................................13SECTION 5 DESCRIPTION AND OPERATION5-1 Interrupter Assembly .........................................................................................................................................165-1.1 Vacuum Interrupter............................................................................................................................................165-1.2 Contact Erosion Indicator ..................................................................................................................................175-1.3 “T” Cutout Loading Spring Indicator ..................................................................................................................175-1.4 Contact Wipe and Stroke ..................................................................................................................................175-1.5 Pole Unit Support Molding.................................................................................................................................185-2 Stored Energy Mechanism ................................................................................................................................185-2.1 Operation of Stored Energy Mechanism ...........................................................................................................185-2.2 Charging............................................................................................................................................................195-2.3 Closing Operation..............................................................................................................................................195-2.4 Tripping Operation.............................................................................................................................................195-2.5 Trip Free Operation ...........................................................................................................................................195-3 Control Scheme.................................................................................................................................................195-3.1 Timing .............................................................................................................................................................225-3.2 Secondary Disconnects.....................................................................................................................................225-3.3 Undervoltage Trip Device..................................................................................................................................225-4 Interlocks ...........................................................................................................................................................235-4.1 Floor Tripping, Spring Release and Anti-Latch Interlocks .................................................................................235-4.2 Levering Interlock ..............................................................................................................................................235-4.3 Anti-Close Interlock ...........................................................................................................................................235-4.4 Earthing Drive Interlock .....................................................................................................................................23