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Bui Generating Station
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2026 plan
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Schedule
399
Performance
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Data quality
189
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Schedule
2019 preventive maintenance plan (archived)
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Year
Jan
0
0/26
26
Feb
0
0/22
22
Mar
0
0/24
24
Apr
0
0/53
53
May
0
0/33
33
Jun
0
0/33
33
Jul
0
0/54
54
Aug
0
0/21
21
Sep
0
0/38
38
Oct
0
0/54
54
Nov
0
0/31
31
Dec
0
0/27
27
Plan
2026 plan (current)
2025 plan
2023 plan
2020 plan
2019 plan
Generating unit
All units
54G1
54G2
54G3
54G4
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Level A
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54 tasks
in October 2019
54 overdue
Newest first
Oldest first
Monthly
Quarterly (Unit)
Quarterly (Auxiliary)
Outside Services
Semi-annual (Auxiliary)
Annual
Level A
54G1 Level A Maintenance
54G1
0/39 done
Level A
4 days
Trial Run Test (72 hours)
Dec 26 – Dec 29
EXPIRED
· 2455d overdue
Not started
Unit Start-up Test /
Unit Load Rejection Test
Dec 24 – Dec 25
EXPIRED
· 2457d overdue
Not started
Unit Start-up Test /
Unit Load Test
Dec 22 – Dec 23
EXPIRED
· 2459d overdue
Not started
Unit Start-up Test /
Unit Synchronization Test
Dec 21
EXPIRED
· 2460d overdue
Not started
Unit Start-up Test /
Generator Short-circuit & Open-circuit Test
Dec 20
EXPIRED
· 2461d overdue
Not started
Unit Start-up Test /
Unit Automatic Start-up & Shut down Test
Dec 19
EXPIRED
· 2462d overdue
Not started
Unit Start-up Test /
Governor Test
Dec 18
EXPIRED
· 2463d overdue
Not started
Unit Start-up Test /
Unit Bearing Temperature Run and Over-speed Test
Dec 17
EXPIRED
· 2464d overdue
Not started
Unit Start-up Test /
Unit first Manual Start-up and Risen-Speed Test
Dec 16 – Dec 17
EXPIRED
· 2465d overdue
Not started
Unit Start-up Test /
Penstock Water-filling Test
Dec 15
EXPIRED
· 2466d overdue
Not started
Unit Start-up Test /
Draft Tube Water-filling Test
Dec 13 – Dec 14
EXPIRED
· 2468d overdue
Not started
Unit Re-installation /
Fill the Turbine Oil into the Bearing
Dec 7 – Dec 12
EXPIRED
· 2474d overdue
Not started
Electricial Parts /
Inspection on Main Transformer
Nov 25 – Nov 28
EXPIRED
· 2486d overdue
Not started
Unit Re-installation /
Runout Test
Nov 23 – Dec 6
EXPIRED
· 2488d overdue
Not started
Electricial Parts /
Inspection on Excitation System
Nov 20 – Nov 24
EXPIRED
· 2491d overdue
Not started
Maintenance on Unit Auxiliary System /
Maintenance on Drainage System and Dewatering System
Nov 17 – Nov 18
EXPIRED
· 2494d overdue
Not started
Electricial Parts /
Inspection on the Unit Online Monitoring System
Nov 15 – Nov 24
EXPIRED
· 2496d overdue
Not started
Electricial Parts /
Inspection on Rotor and Collector Ring
Nov 12 – Nov 19
EXPIRED
· 2499d overdue
Not started
Maintenance on Unit Auxiliary System /
Maintenance on Cooling Water System
Nov 12 – Nov 16
EXPIRED
· 2499d overdue
Not started
Maintenance on Unit Auxiliary System /
Maintenance on Compressed Air System
Nov 10 – Nov 11
EXPIRED
· 2501d overdue
Not started
Unit Re-installation /
Assemble the Upper bracket
Nov 10 – Nov 22
EXPIRED
· 2501d overdue
Not started
Maintenance on Unit Auxiliary System /
Oil Treatment for Unit 1
Nov 8 – Nov 9
EXPIRED
· 2503d overdue
Not started
Govenor System /
Maintenance on the Oil Leakge System
Nov 7
EXPIRED
· 2504d overdue
Not started
Electricial Parts /
Inspection on the Generator Protection System
Nov 5 – Nov 14
EXPIRED
· 2506d overdue
Not started
Govenor System /
Maintenance on the Electricial System
Nov 5 – Nov 6
EXPIRED
· 2506d overdue
Not started
Electricial Parts /
Inspection on the Generator HV Switches, Breakers, Grounding Transformer and PT/CT/Busbar
Nov 2 – Nov 11
EXPIRED
· 2509d overdue
Not started
Govenor System /
Maintenance on the Oil Pressure System
Nov 1 – Nov 4
EXPIRED
· 2510d overdue
Not started
Electricial Parts /
Inspection on Stator
Oct 25 – Nov 1
EXPIRED
· 2517d overdue
Not started
Unit Re-installation /
Lift the Rotor in the Unit Pit
Oct 23 – Nov 9
EXPIRED
· 2519d overdue
Not started
Turbine /
Inspection in Draft Tube and Spiral Case
Oct 23 – Oct 25
EXPIRED
· 2519d overdue
Not started
Maintenance on Generator /
Inspection on Rotor
Oct 20 – Oct 21
EXPIRED
· 2522d overdue
Not started
Turbine /
Inspection on Runner
Oct 18 – Oct 22
EXPIRED
· 2524d overdue
Not started
Maintenance on Generator /
Inspection on Wind Guide System
Oct 18 – Oct 19
EXPIRED
· 2524d overdue
Not started
Turbine /
Maintenance on Servomotor
Oct 14 – Oct 17
EXPIRED
· 2528d overdue
Not started
Maintenance on Generator /
Maintenance on Braking System
Oct 13 – Oct 17
EXPIRED
· 2529d overdue
Not started
Turbine /
Maintenance on Turbine Distribution System and Headcover Drainge System
Oct 8 – Oct 13
EXPIRED
· 2534d overdue
Not started
Maintenance on Generator /
Maintenance on Lower and Thrust Guide Bearing
Oct 5 – Oct 12
EXPIRED
· 2537d overdue
Not started
Turbine /
Maintenance on Turbine Bearing and Main Shaft Seal System
Oct 3 – Oct 7
EXPIRED
· 2539d overdue
Not started
Maintenance on Generator /
Maintenance on Upper Guide Bearing
Oct 1 – Oct 4
EXPIRED
· 2541d overdue
Not started
Plant Auxiliaries
0/4 done
1 day
Ventilation System Motors
Oct 29
EXPIRED
· 2513d overdue
Not started
SCO Compressor Motors/Panels
Oct 29
EXPIRED
· 2513d overdue
Not started
Domestic Water Pump Motors/Panels
Maintenance on Inlet/Tailrace Gate and Hoist System of Unit 1
EXPIRED
· 2527d overdue
Not started
Oct 15 – Nov 14
30 days
Monthly Inspections on Cooling Water Switchgears
0/3 done
Monthly
1 day
Unit #3 Switchgears
Oct 3
EXPIRED
· 2539d overdue
Not started
Unit #2 Switchgears
Oct 3
EXPIRED
· 2539d overdue
Not started
Unit #1 Switchgears
Monthly Inspections at the Switchyard
EXPIRED
· 2540d overdue
Not started
Monthly
Oct 2
1 day
Monthly Battery Maintenance
0/6 done
Monthly
1 day
Communication Batteries @ Turbinette
Oct 1
EXPIRED
· 2541d overdue
Not started
Station Battery Maintenance @ Turbinette
Oct 1
EXPIRED
· 2541d overdue
Not started
Forklift Battery Maintenance
Oct 28
EXPIRED
· 2514d overdue
Not started
Fire Fighting Pump Motors
Oct 28
EXPIRED
· 2514d overdue
Not started
Oct 3
EXPIRED
· 2539d overdue
Not started
Oct 1
EXPIRED
· 2541d overdue
Not started
Communication Batteries @ Powerhouse
Oct 1
EXPIRED
· 2541d overdue
Not started
300AH Battery Maintenance
Oct 1
EXPIRED
· 2541d overdue
Not started
800AH Battery Maintenance
Oct 1
EXPIRED
· 2541d overdue
Not started