Instruction Book
Page iv
Effective: March 2007
For more information visit:
www.EatonElectrical.com
I.B
6513C80G
TABLE OF CONTENTS
PAGE
SECTION 1 INTRODUCTION
1-1 Available DHP-VR Breakers .........................................................................................................................................1
SECTION 2 SAFE PRACTICES
.........................................................................................................................................................................................5
SECTION 3 RECEIVING, HANDLING AND STORAGE
3-1
Receiving .......................................................................................................................................................................6
3-2
Handling .........................................................................................................................................................................6
3-3
Storage ..........................................................................................................................................................................7
3-4 DHP-VR Weights ...........................................................................................................................................................7
SECTION 4 INSTALLATION
4-1
Initial Inspection and Operation ................................................................................................................................ 12
4-2 SURE CLOSE MECHANISM Adjustment ................................................................................................................ 12
4-3 Mechanism Operated Cell (MOC) Switch Pantograph Adjustment ...................................................................... 14
4-4 Manual Operation Check ........................................................................................................................................... 15
4-5 Vacuum Interrupter Integrity ..................................................................................................................................... 15
4-6
Insulation ..................................................................................................................................................................... 15
4-7 Contact Erosion and Wipe ......................................................................................................................................... 15
4-8 Primary Circuit Resistance ........................................................................................................................................ 15
4-9 Nameplate ................................................................................................................................................................... 15
4-10 Snubber Adjustment ................................................................................................................................................... 15
4-11 Electrical Operations Check ...................................................................................................................................... 15
4-12 Lever Breaker Into Cell .............................................................................................................................................. 18
4-13 Removing Breaker From Cell .................................................................................................................................... 19
SECTION 5 DESCRIPTION AND OPERATION
5-1
Interrupter Assembly .................................................................................................................................................. 20
5-1.1
Vacuum Interrupter ....................................................................................................................................... 21
5-1.2
Contact Erosion Indicator ............................................................................................................................ 21
5-1.3 "T" Cutout Loading Spring Indicator ................................................................................................................ 21
5-1.4 Contact Wipe and Stroke .................................................................................................................................. 21
5-1.5 Phase Barriers ................................................................................................................................................... 22
5-2 Stored Energy Mechanism ............................................................................................................................................. 22
5-2.1 Operation of Stored Energy Mechanism ......................................................................................................... 22
5-2.2 Charging ............................................................................................................................................................. 22
5-2.3 Closing Operation .............................................................................................................................................. 22
5-2.4 Tripping Operation ............................................................................................................................................. 27
5-2.5 Trip Free Operation ........................................................................................................................................... 27
5-3 Control Scheme ............................................................................................................................................................... 27
5-3.1
Timing ............................................................................................................................................................. 27
5-3.2 Secondary Disconnects .................................................................................................................................... 27
