GE Industrial Solutions AKD-20 Low Voltage Switchgear - Manuel (Page 2)

AKD-20 Low Voltage Switchgear
Table of Contents
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Chapter 1. Introduction
1-1 General Information ............................................. 4
1-2 Instruction Book Arrangement........................ 4
1-3 Related Publications ............................................ 5
Chapter 2. Receiving, Handling, and
Storage
2-1 Receiving ................................................................... 6
Equipment Packages ................................... 6
Inspecting for Damage ............................... 6
Filing a Claim.................................................... 6
2-2 Handling .................................................................... 7
Lifting ................................................................... 7
Rollers.................................................................. 9
Forklifts ............................................................... 9
Jacks ................................................................... 11
2-3 Storage ..................................................................... 12
Switchgear ....................................................... 12
Circuit Breakers ............................................. 12
Chapter 3. Description
3-1 General ..................................................................... 13
3-2 Summary Description......................................... 13
3-3 Compartment Area ............................................. 15
3-4 Instrument Panel .................................................. 15
3-5 Breaker Compartment ....................................... 15
3-6 Circuit Breakers ..................................................... 19
EntelliGuard G Circuit Breakers .............. 20
3-8 Compartments for Future Breakers ............. 20
3-9 Auxiliary/Transition Sections ........................... 20
3-10 Bus Area ................................................................... 22
Busing System ....................................................... 22
Insulated/Isolated Bus System ....................... 23
3-11 Feeder Cable and Busway
Compartment ........................................................ 24
3-12 Ground Bus ............................................................. 25
3-13 AKD-20 Outdoor Switchgear ........................... 26
Chapter 4. Equipment Installation
4-1 General ..................................................................... 28
Site Location ................................................... 28
Foundation Requirements ........................ 28
Foundation Preparation............................. 28
Indoor Equipment ................................. 28
Outdoor Equipment .............................. 31
4-2 Assembly and Installation of Switchgear
Equipment .................................................................. 32
General Requirements .................................. 32
Detailed Assembly and Installation
Instructions ............................................................... 32
Indoor Equipment ........................................... 32
Outdoor Equipment ........................................ 38
Anchoring Switchgear Equipment ........... 39
Indoor Equipment ........................................... 40
Outdoor Equipment ........................................ 42
Busway Connections ............................................. 42
Control Wire Connections ................................... 42
Power Cable Connections ................................... 43
Relays and Control Devices ................................ 43
Breaker Hoist ............................................................ 44
Indoor Equipment ........................................... 44
Outdoor Equipment ........................................ 46
Final Inspection ........................................................ 46
Chapter 5. Installing and Removing
Circuit Breakers
5-1 General ........................................................................ 47
Inspection and Preparation of
Circuit Breakers ........................................................ 47
Circuit Breaker Installation ................................. 47
Rejection Feature .................................................... 47
5-2 Installing the EntelliGuard G
Circuit Breaker .......................................................... 48
Prior to Installation ................................................. 48
Installation Procedures ......................................... 48
5-3 Removing the EntelliGuard G
Circuit Breakers ........................................................ 49
Chapter 6. Testing and Inspection
6-1 General ...................................................................... 50
6-2 Key Interlocks ......................................................... 50
6-3 Breaker Operation Test ...................................... 50
6-4 EntelliGuard G Trip
Units ............................................................................ 50
6-5 Final Steps to Be Taken Before
Energizing Equipment ......................................... 51
Chapter 7. Operating the Switchgear
7-1 Circuit Breaker Operation ................................. 52
General ............................................................ 52
Manually Operated Breakers ................ 52
Closing Manually Operated EntelliGuard
G Circuit Breakers .................................... 52
Tripping Manually Operated EntelliGuard
G Circuit Breakers .................................... 52
Electrically Operated Breakers ............. 52
Electrical Tripping on
EntelliGuard G Circuit Breakers ............ 52
7-2 Circuit Breaker Drawout Operation .............. 52
Breaker Positions ........................................ 52
Drawout Operation .................................... 52
7-3 Front Doors .............................................................. 53
Operation ....................................................... 53
Removal and Installation ........................ 53
Door Removal .......................................... 53
Door Installation ..................................... 53
7-4 AKD-20 Switchgear Accessories .................... 53
Future Circuit Breaker
Compartments ............................................. 53
Circuit Breaker Key Interlock ................. 54
General ....................................................... 54
Key Interlock Operation Check ........ 54
Padlocking the Enetlliguard G
cassette racking door ............................... 54
Padlocking the Entelliguard G
cassette ......................................................... 54
Padlocking the EntelliGuard G
shutter ............................................................. 55
Removing Entelliguard G
shutter Units ................................................. 55