Eaton W-VACi - Default Chapter; Table of Contents

65A7355H01 November 2011 www.eaton.com
3
Table of contents
1 Safety .................................................................................................................................... 5
1.1 Safety precautions ................................................................................................................................5
1.2 Safety practices ....................................................................................................................................5
2 Product Summary ................................................................................................................ 6
2.1 Standards and Specifications ...............................................................................................................6
2.2 Altitude Correction Factor .....................................................................................................................6
2.3 Technology Parameters ........................................................................................................................6
2.4 Technical Parameters 12 kV W-VACi IEC Circuit Breaker....................................................................7
2.5 Technical Parameters 17.5 kV W-VACi IEC Circuit Breaker.................................................................9
2.6 Technical Parameters 24 kV W-VACi IEC Circuit Breaker.................................................................. 11
2.7 Operating Conditions .......................................................................................................................... 12
2.8 Breaker Description ............................................................................................................................ 12
2.9 Outline and Dimensions ...................................................................................................................... 13
3 Receiving, handling and storage ..................................................................................... 36
3.1 Receiving ............................................................................................................................................ 36
3.2 Handling.............................................................................................................................................. 36
3.3 Storage ............................................................................................................................................... 36
3.4 Lifting of Circuit Breakers .................................................................................................................... 37
3.5 W-VACi Circuit Breaker Weights ........................................................................................................ 37
3.6 Photographic Description .................................................................................................................... 38
4 Inspection ........................................................................................................................... 40
4.1 Inspection ........................................................................................................................................... 40
4.2 Frequency of Inspection ..................................................................................................................... 40
4.3 Inspection Process ............................................................................................................................. 40
4.4 Vacuum Interrupter Integrity Test ....................................................................................................... 40
4.5 Insulation Inspection ........................................................................................................................... 40
4.6 Main Circuit Resistance Check ........................................................................................................... 41
Mechanism Inspection Check ....................................................................................................................... 41
4.7 Torque specifications .......................................................................................................................... 41
4.8 Troubleshooting Chart ........................................................................................................................ 43
5 Circuit Breaker Description and Operations .................................................................. 45
5.1 Initial Inspection and Operation .......................................................................................................... 45
5.2 Manual Operation Check .................................................................................................................... 45
5.3 Nameplate .......................................................................................................................................... 46
5.4 Vacuum Interrupter Integrity Check .................................................................................................... 46
5.5 Insulation ............................................................................................................................................ 46
5.6 Main Circuit Resistance Check ........................................................................................................... 46
5.7 Electrical Operations Check ................................................................................................................ 46
5.8 Racking handle ................................................................................................................................... 47
5.9 Circuit Breaker Interaction with Switchgear ........................................................................................ 47
5.10 IEC Standard Interlocks ................................................................................................................. 48
5.11 UX Switchgear Door Interlocks ...................................................................................................... 48
5.12 Electromagnetic Interlocks ............................................................................................................. 48
5.13 Unique OEM Interlocks .................................................................................................................. 48
6 Operation ............................................................................................................................ 49
6.1 Encapsulated Pole Units ..................................................................................................................... 49