ABB MNS-SG, Operation And Maintenance Manual

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Manual | MNS-SG Operation and Maintenance 3
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Table of Contents
Important user information .................................................. 4
• Safety notices .......................................................... 4
• Warning ..................................................................... 4
1. General information and system description ................. 6
1.1. System overview .......................................................... 6
1.2. Component names ...................................................... 6
1.3. Technical data table .................................................... 7
1.4. MNS-SG standard configuration .............................. 8
1.4.1. Structure description ................................................. 8
1.5. Labels and markings ................................................... 8
1.5.1. Switchgear lineup label .............................................. 8
1.5.2. Cubicle/device label .................................................... 8
1.6. Mechanical design ....................................................... 8
1.6.1. Section arrangement .................................................. 8
1.7. Busbar compartments ............................................... 9
1.7.1. Bus phases .................................................................... 9
1.7.2. Horizontal neutral bus (optional feature) ............ 10
1.7.3. Ground bar .................................................................. 10
1.7.4. Vertical distribution busbar ..................................... 11
1.8. Device compartment ................................................. 11
1.8.1. Section and location numbering ............................. 11
1.9. Wireways ..................................................................... 12
1.9.1. Cable compartment .................................................. 12
1.9.2. Top horizontal wireway ............................................ 12
1.9.3. Bottom horizontal wireway ..................................... 12
1.9.4. Vertical wireway ......................................................... 13
1.10. Seismic structure Frame .......................................... 13
2. Exhaust plenum (optional) ............................................. 14
2.1. Install side-exhaust plenum .................................... 15
2.2. Install rear-exhaust plenum ..................................... 16
2.3. Seismic installation for plenum .............................. 18
2.4. Positioning arc-resistant switchgear ................... 18
3. Packaging and handling .................................................. 19
3.1. Standard packaging .................................................. 19
3.2. Section weight ........................................................... 20
3.3. Receiving ..................................................................... 21
3.4. Unload and move switchgear components ......... 21
3.4.1. Loading and transport ............................................. 22
3.4.2. Ground transport....................................................... 22
3.4.3. Transport by crane .................................................... 23
3.4.4. Temporary storage ................................................... 24
4. Locate and connect the switchgear .............................. 25
4.1. Installation location requirements ........................ 25
4.2. Installation guidelines .............................................. 26
4.3. Section installation sequence ................................. 26
4.4. Install and connect shipping splits ........................ 26
4.4.1. Position shipping splits ........................................... 26
4.4.2. Connect sections ...................................................... 26
4.5. Splice horizontal busbars ......................................... 27
4.6. Splicing Ground Busbar ........................................... 29
4.7. Attach switchgear to the floor ............................... 30
4.8. Attach overhead lifting device ............................... 30
4.8.1. Operating overhead lifting device .........................32
4.9. Connect cable and wiring .........................................32
4.9.1. Install connections – general information ........... 32
4.9.2. Direct connections to main sections .................... 35
4.9.3. Connect between horizontal and vertical wireways 35
4.9.4. Connect control wiring between sections .......... 35
4.9.5. Connection to external control source (If required) 35
4.10. Other installation information ............................... 35
4.10.1. Interruption of installation ..................................... 35
4.10.2. Surface damage......................................................... 35
4.11. Commission the switchgear ................................... 35
4.11.1. Physical equipment check ....................................... 35
4.11.2. Prepare to energize switchgear ............................. 36
4.11.3. Testing and final inspection ....................................37
4.11.4. Energize the switchgear .......................................... 39
4.11.5. Energize the main bus .............................................. 39
4.11.6. Final testing ................................................................ 39
5. Component operation documents................................. 39
6. Maintenance .................................................................... 40
6.1. Lockout/tagout ......................................................... 40
6.2. Tighten unit control and power terminals .......... 40
6.3. Remove/insert withdrawable breaker ................. 40
6.4. Inspect units ............................................................... 40
6.5. Inspect busbars ......................................................... 41
6.6. Exterior metal damage repair ................................ 41
6.7
Maintenance schedule ............................................. 41
6.7.1
Semi-annual inspection ........................................... 41
6.7.2
Annual inspection ...................................................... 41
6.7.3
18-to-36 month inspection ..................................... 42
6.7.4
10-year maximum inspection ................................. 42
6.7.5
Eslok® fasteners ........................................................ 42
6.8
Arc flash protection .................................................. 42
7. Additional resources ....................................................... 43
8. Torque fasteners ............................................................. 43
8.1. Torque table ............................................................... 44
9. Disclaimer of warranties and limitation of liability ..... 47